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1 // Copyright (c) 2007-2009 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 // EIR Manager server session. |
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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 @file |
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20 @internalComponent |
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21 */ |
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22 |
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23 #include "eirmansession.h" |
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24 #include <bluetooth/logger.h> |
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25 #include <bluetooth/eirmanshared.h> |
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26 #include <bttypes.h> |
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27 #include <bluetooth/hci/hciconsts.h> |
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28 #include "eirmanpanics.h" |
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29 #include "eirmanserver.h" |
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30 |
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31 #ifdef __FLOG_ACTIVE |
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32 _LIT8(KLogComponent, LOG_COMPONENT_EIRMANAGER); |
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33 #endif |
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34 |
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35 CEirManSession* CEirManSession::NewL(CEirManServer& aServer) |
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36 { |
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37 LOG_STATIC_FUNC |
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38 CEirManSession* self = new(ELeave) CEirManSession(aServer); |
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39 CleanupStack::PushL(self); |
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40 self->ConstructL(); |
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41 CleanupStack::Pop(self); |
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42 return self; |
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43 } |
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44 |
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45 CEirManSession::CEirManSession(CEirManServer& aServer) |
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46 : iEirManServer(aServer) |
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47 , iEirTag(EEirTagRESERVED) |
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48 { |
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49 LOG_FUNC |
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50 } |
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51 |
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52 void CEirManSession::ConstructL() |
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53 { |
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54 LOG_FUNC |
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55 iEirManServer.AddSession(); |
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56 } |
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57 |
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58 CEirManSession::~CEirManSession() |
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59 { |
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60 LOG_FUNC |
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61 // deregister any registered tag that may be registered |
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62 DeregisterTag(); |
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63 if(!iDataAvailableListenerMessage.IsNull()) |
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64 { |
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65 // complete any outstanding messages. |
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66 iDataAvailableListenerMessage.Complete(KErrCancel); |
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67 } |
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68 iEirManServer.DropSession(); |
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69 } |
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70 |
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71 void CEirManSession::ServiceL(const RMessage2& aMessage) |
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72 { |
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73 LOG_FUNC |
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74 LOG1(_L("CEirManSession::ServiceL aMessage.Function() = %d"), aMessage.Function()); |
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75 TBool complete = ETrue; |
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76 TInt ret = KErrNone; |
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77 |
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78 switch (aMessage.Function()) |
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79 { |
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80 case EEirManRegisterTag: |
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81 complete = EFalse; // always async. |
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82 RegisterTag(aMessage); |
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83 break; |
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84 |
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85 case EEirManSpaceAvailableNotification: |
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86 ret = RegisterSpaceAvailableListener(aMessage, complete); |
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87 break; |
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88 |
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89 case EEirManCancelSpaceAvailableNotification: |
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90 ret = CancelSpaceAvailableListener(); |
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91 break; |
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92 |
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93 case EEirManSetData: |
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94 ret = SetData(aMessage); |
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95 break; |
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96 |
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97 case EEirManNewData: |
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98 ret = NewData(aMessage); |
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99 break; |
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100 |
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101 default: |
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102 aMessage.Panic(KEirManCliPncCat, EEirManPanicInvalidIPC); |
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103 break; |
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104 } |
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105 |
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106 if (complete) |
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107 { |
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108 aMessage.Complete(ret); |
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109 } |
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110 } |
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111 |
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112 void CEirManSession::RegisterTag(const RMessage2& aMessage) |
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113 { |
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114 LOG_FUNC |
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115 |
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116 TEirTag tag = static_cast<TEirTag>(aMessage.Int0()); |
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117 LOG1(_L("CEirManSession::RegisterTag tag = %d"), tag); |
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118 |
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119 if(!(tag >= EEirTagName && tag < EEirTagRESERVED)) |
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120 { |
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121 __ASSERT_ALWAYS(EFalse, aMessage.Panic(KEirManCliPncCat, EEirManPanicInvalidTag)); |
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122 } |
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123 else if(iEirTag != EEirTagRESERVED) |
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124 { |
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125 LOG1(_L("CEirManSession::RegisterTag ERROR, Tag in use: %d"), iEirTag); |
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126 aMessage.Complete(KErrInUse); |
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127 } |
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128 else |
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129 { |
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130 // Register this tag for callbacks |
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131 if(iEirManServer.EirFeatureState() == EEirFeatureReady) |
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132 { |
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133 // Eir is supported |
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134 TInt result = iEirManServer.EirManager().RegisterTag(tag, *this); |
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135 if(result == KErrNone) |
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136 { |
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137 iEirTag = tag; |
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138 } |
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139 aMessage.Complete(result); |
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140 } |
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141 else if(iEirManServer.EirFeatureState() == EEirFeaturePending) |
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142 { |
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143 // We don't know if eir is supported or not at this moment |
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144 iPendingEirTag = tag; |
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145 iRegisterMessage = aMessage; |
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146 } |
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147 else |
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148 { |
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149 // Eir is not supported |
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150 aMessage.Complete(KErrNotSupported); |
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151 } |
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152 } |
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153 } |
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154 |
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155 void CEirManSession::DeregisterTag() |
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156 { |
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157 LOG_FUNC |
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158 LOG1(_L("CEirManSession::DeregisterTag tag = %d"), iEirTag); |
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159 |
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160 if(iEirTag != EEirTagRESERVED) |
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161 { |
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162 // Deregister this tag for callbacks |
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163 iEirManServer.EirManager().DeregisterTag(iEirTag); |
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164 iEirTag = EEirTagRESERVED; |
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165 } |
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166 } |
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167 |
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168 // Eir Server has tried to register tag |
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169 void CEirManSession::NotifyEirFeatureState(TInt aResult) |
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170 { |
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171 LOG1(_L("Eir Server has been notified feature ready, result: %d"), aResult); |
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172 if(aResult == KErrNone && !iRegisterMessage.IsNull()) |
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173 { |
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174 __ASSERT_DEBUG(iEirManServer.EirFeatureState() == EEirFeatureReady, EIR_SESSION_PANIC(EEirSessionEirFeatureNotSupported)); |
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175 TInt result = iEirManServer.EirManager().RegisterTag(iPendingEirTag, *this); |
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176 if(result == KErrNone) |
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177 { |
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178 iEirTag = iPendingEirTag; |
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179 } |
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180 iRegisterMessage.Complete(result); |
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181 } |
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182 else if(!iRegisterMessage.IsNull()) |
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183 { |
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184 iRegisterMessage.Complete(aResult); |
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185 } |
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186 } |
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187 |
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188 TInt CEirManSession::RegisterSpaceAvailableListener(const RMessage2& aMessage, TBool& aComplete) |
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189 { |
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190 LOG_FUNC |
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191 |
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192 if(iDataAvailableListenerMessage.Handle()) |
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193 { |
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194 LOG(_L("CEirManSession:::RegisterSpaceAvailableListener ERROR IN USE")); |
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195 return KErrInUse; |
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196 } |
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197 |
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198 iDataAvailableListenerMessage = aMessage; |
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199 |
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200 aComplete = EFalse; |
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201 |
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202 if(iLastSpaceOffered != 0) |
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203 { |
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204 LOG(_L("cached space present, completing immediately")); |
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205 CompleteSpaceAvailableRequest(iLastSpaceOffered); |
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206 iLastSpaceOffered = 0; |
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207 return KErrNone; |
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208 } |
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209 |
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210 LOG(_L("waiting for callback...")); |
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211 return KErrNone; |
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212 } |
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213 |
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214 TInt CEirManSession::NewData(const RMessage2& aMessage) |
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215 { |
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216 LOG_FUNC |
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217 __ASSERT_ALWAYS(iEirTag != EEirTagRESERVED, aMessage.Panic(KEirManCliPncCat, EEirManPanicInvalidTag)); |
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218 TInt requiredLength = static_cast<TInt>(aMessage.Int0()); |
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219 |
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220 return iEirManServer.EirManager().NewData(iEirTag, requiredLength); |
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221 } |
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222 |
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223 TInt CEirManSession::CancelSpaceAvailableListener() |
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224 { |
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225 LOG_FUNC |
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226 |
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227 if(!iDataAvailableListenerMessage.Handle()) |
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228 { |
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229 return KErrNotFound; |
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230 } |
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231 |
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232 iDataAvailableListenerMessage.Complete(KErrCancel); |
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233 |
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234 return KErrNone; |
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235 } |
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236 |
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237 TInt CEirManSession::SetData(const RMessage2& aMessage) |
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238 { |
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239 LOG_FUNC |
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240 __ASSERT_ALWAYS(iEirTag != EEirTagRESERVED, aMessage.Panic(KEirManCliPncCat, EEirManPanicInvalidTag)); |
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241 TEirDataMode eirDataMode = static_cast<TEirDataMode>(aMessage.Int1()); |
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242 LOG2(_L("Tag: %d EirDataMode: %d"), iEirTag, eirDataMode); |
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243 |
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244 // No need to allocate memory with an expensive malloc() call (via HBuf8::NewL or whatever), |
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245 // since the EIR contents fit in the stack, and the EIR Manager will cache the data anyway |
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246 TBuf8<KHCIExtendedInquiryResponseMaxLength> data; |
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247 TInt err = aMessage.Read(0, data); |
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248 |
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249 if(err == KErrNone) |
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250 { |
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251 err = iEirManServer.EirManager().SetData(iEirTag, data, eirDataMode); |
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252 } |
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253 return err; |
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254 } |
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255 |
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256 // Callback from the EIR Manager |
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257 void CEirManSession::MemnEirBlockAvailable(TEirTag aTag, TUint aSpaceForTag) |
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258 { |
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259 LOG_FUNC |
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260 LOG2(_L("CEirManSession::MemnEirBlockAvailable Tag: %d space: %d"), aTag, aSpaceForTag); |
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261 |
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262 // Silently discard callbacks not containing our EIR Tag |
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263 if(aTag != iEirTag) |
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264 { |
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265 __ASSERT_DEBUG(EFalse, EIR_SESSION_PANIC(EEirSessionInvalidEirTag)); |
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266 LOG3(_L("CEirManSession::MemnEirBlockAvailable early return: aTag: %d iEirTag: %d space: %d"), aTag, iEirTag, aSpaceForTag); |
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267 return; |
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268 } |
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269 |
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270 if(iDataAvailableListenerMessage.Handle()) |
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271 { |
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272 LOG(_L("Listener outstanding, completing request")); |
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273 // Clear stored value |
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274 iLastSpaceOffered = 0; |
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275 CompleteSpaceAvailableRequest(aSpaceForTag); |
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276 } |
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277 else |
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278 { |
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279 LOG(_L("NO Listener outstanding, storing space")); |
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280 // Store in case a client registers later. If this happens multiple times, only the last one will be remembered |
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281 iLastSpaceOffered = aSpaceForTag; |
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282 } |
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283 } |
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284 |
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285 void CEirManSession::CompleteSpaceAvailableRequest(TUint aBytesAvailable) |
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286 { |
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287 LOG_FUNC |
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288 LOG1(_L("CEirManSession::CompleteSpaceAvailableRequest bytes: %d"), aBytesAvailable); |
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289 // Offer the space to the client |
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290 TPckg<TUint32> pckg(aBytesAvailable); |
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291 |
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292 TInt err = iDataAvailableListenerMessage.Write(0, pckg); |
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293 iDataAvailableListenerMessage.Complete(err); |
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294 } |
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295 |