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1 /* |
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2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include <e32cons.h> |
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20 #include <f32file.h> |
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21 // Notifier to select a device |
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22 #include <btextnotifiers.h> |
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23 |
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24 #ifdef __UIQ_BUILD__ |
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25 #include <QBTselectdlg.h> |
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26 #include <btsdp.h> // CSdpAgent |
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27 #endif |
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28 |
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29 #include "TrkBtSocketCommPort.h" |
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30 #include "TrkFramingLayer.h" |
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31 #include "TrkConnData.h" |
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32 |
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33 |
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34 // |
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35 // Static helper functions |
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36 // |
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37 |
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38 // |
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39 // |
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40 // CTrkBtSocketCommPort implementation |
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41 // |
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42 // |
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43 |
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44 // |
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45 // CTrkBtSocketCommPort constructor |
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46 // |
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47 CTrkBtSocketCommPort::CTrkBtSocketCommPort() |
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48 : CTrkCommPort(CActive::EPriorityStandard, ETrkNotConnected), |
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49 iServerStarted(EFalse), |
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50 iConnected(EFalse), |
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51 iListening(EFalse), |
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52 iCurrUUID(0), |
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53 iPortValid(EFalse), |
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54 iDiscovering(EFalse), |
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55 iSearchPattern(NULL), |
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56 iAgent(NULL), |
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57 iConnectionListener(NULL) |
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58 { |
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59 iAddr.Reset(); |
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60 } |
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61 |
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62 // |
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63 // CTrkBtSocketCommPort::ConstructL |
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64 // |
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65 void CTrkBtSocketCommPort::ConstructL(TTrkConnData aTrkConnData, TDes& /*aErrorMessage*/, MTrkConnectionListener* aCallback) |
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66 { |
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67 iUnitNumber = aTrkConnData.iPortNumber; |
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68 iUpdatedPort = iUnitNumber; |
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69 |
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70 CActiveScheduler::Add(this); |
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71 |
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72 iConnectionListener = aCallback; |
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73 |
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74 } |
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75 |
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76 // |
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77 // CTrkBtSocketCommPort destructor |
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78 // |
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79 CTrkBtSocketCommPort::~CTrkBtSocketCommPort() |
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80 { |
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81 // make sure we cancel the request for data before shutting down |
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82 Cancel(); |
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83 StopDiscovery(); |
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84 |
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85 if (iConnected) |
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86 { |
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87 iSock.Close(); |
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88 iConnected = EFalse; |
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89 } |
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90 |
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91 if (iServerStarted) |
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92 { |
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93 iSocketServ.Close(); |
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94 iServerStarted = EFalse; |
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95 } |
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96 |
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97 |
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98 } |
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99 |
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100 // |
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101 // CTrkBtSocketCommPort::NewL |
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102 // |
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103 CTrkBtSocketCommPort* CTrkBtSocketCommPort::NewL(TTrkConnData aTrkConnData, TDes& aErrorMessage, MTrkConnectionListener* aCallback) |
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104 { |
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105 CTrkBtSocketCommPort* self = new(ELeave) CTrkBtSocketCommPort; |
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106 CleanupStack::PushL(self); |
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107 self->ConstructL(aTrkConnData, aErrorMessage, aCallback); |
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108 CleanupStack::Pop(self); |
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109 return self; |
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110 } |
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111 |
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112 // |
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113 // CTrkBtSocketCommPort::OpenPortL |
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114 // |
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115 // Open the bluetooth selection dialog and connect to the selected device. |
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116 // |
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117 void CTrkBtSocketCommPort::OpenPortL() |
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118 { |
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119 if (!iServerStarted) |
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120 { |
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121 StartC32(); |
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122 ReportAndLeaveIfErrorL(iSocketServ.Connect(), _L("Failed to connect to socketserver.")); |
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123 iServerStarted = ETrue; |
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124 } |
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125 |
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126 #ifdef __UIQ_BUILD__ |
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127 CBTDeviceArray* aSelectedDeviceArray = new (ELeave) CArrayPtrFlat<CBTDevice>(4); |
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128 CleanupStack::PushL(aSelectedDeviceArray); |
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129 CQBTUISelectDialog* dialog = CQBTUISelectDialog::NewL(aSelectedDeviceArray); |
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130 TInt err = dialog->RunDlgLD(KQBTUISelectDlgFlagNone); |
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131 if (err == KErrNone) |
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132 { |
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133 CBTDevice* ptrBTDev = aSelectedDeviceArray->operator[](0); |
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134 |
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135 TBTDeviceResponseParamsPckg devRespParamsPckg; |
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136 devRespParamsPckg().SetDeviceAddress(ptrBTDev->BDAddr()); |
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137 devRespParamsPckg().SetDeviceName(ptrBTDev->FriendlyName()); |
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138 devRespParamsPckg().SetDeviceClass(ptrBTDev->DeviceClass()); |
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139 |
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140 TBuf8<100> tmpName = ptrBTDev->DeviceName(); |
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141 iName.Copy(tmpName); |
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142 iAddr = devRespParamsPckg().BDAddr(); |
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143 } |
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144 else |
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145 { |
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146 ReportAndLeaveIfErrorL(err, _L("Failed to get device list.")); |
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147 } |
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148 CleanupStack::Pop(aSelectedDeviceArray); |
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149 #else |
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150 // Try to open bluetooth selection dialog to get the name and address of the device |
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151 TBTDeviceResponseParamsPckg aResponse; |
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152 |
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153 RNotifier notifier; |
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154 User::LeaveIfError(notifier.Connect()); |
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155 |
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156 TBTDeviceSelectionParamsPckg selectionFilter; |
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157 |
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158 TRequestStatus status; |
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159 notifier.StartNotifierAndGetResponse( |
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160 status, |
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161 KDeviceSelectionNotifierUid, |
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162 selectionFilter, |
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163 aResponse |
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164 ); |
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165 |
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166 User::WaitForRequest(status); |
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167 |
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168 if (status.Int() != KErrNone) |
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169 { |
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170 notifier.CancelNotifier(KDeviceSelectionNotifierUid); |
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171 notifier.Close(); |
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172 |
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173 ReportAndLeaveIfErrorL(status.Int(), _L("Failed to get device list.")); |
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174 } |
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175 |
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176 notifier.CancelNotifier(KDeviceSelectionNotifierUid); |
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177 notifier.Close(); |
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178 |
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179 iName = aResponse().DeviceName(); |
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180 iAddr = aResponse().BDAddr(); |
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181 #endif |
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182 |
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183 // load protocol, RFCOMM |
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184 TProtocolDesc pdesc; |
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185 ReportAndLeaveIfErrorL(iSocketServ.FindProtocol(_L("RFCOMM"), pdesc),_L("Unable to find protocol.")); |
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186 |
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187 // open socket |
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188 ReportAndLeaveIfErrorL(iSock.Open(iSocketServ, _L("RFCOMM")),_L("Unable to open socket.")); |
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189 // set address and port |
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190 iState = EDiscovering; |
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191 DiscoverPortL(); |
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192 iConnectionStatus = ETrkConnecting; |
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193 } |
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194 |
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195 /* |
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196 * To connect to BT socket after getting appropriate port |
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197 * |
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198 */ |
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199 void CTrkBtSocketCommPort::ConnectToPortL() |
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200 { |
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201 TBTSockAddr addr; |
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202 addr.SetBTAddr(iAddr); |
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203 addr.SetPort(iUpdatedPort); |
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204 |
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205 TRequestStatus cstatus; |
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206 iSock.Connect(addr, cstatus); |
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207 User::WaitForRequest(cstatus); |
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208 |
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209 TInt err = cstatus.Int(); |
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210 if (err != KErrNone) |
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211 { |
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212 iErrorMessage.Format(_L("Error connecting socket\r\nError Code: %d\r\n"),err); |
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213 iConnectionStatus = ETrkConnectionError; |
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214 iConnectionListener->AsyncConnectionFailed(); |
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215 return; |
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216 } |
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217 |
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218 iConnected = ETrue; |
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219 iConnectionMessage.Format(_L("BT Dev Name: %S\r\nBT Port number: %d\r\n"), &iName, iUpdatedPort); |
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220 |
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221 iConnectionStatus = ETrkConnected; |
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222 iConnectionListener->AsyncConnectionSuccessfulL(); |
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223 } |
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224 |
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225 // |
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226 // CTrkBtSocketCommPort::ClosePort |
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227 // |
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228 // Close the communications port |
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229 // |
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230 void CTrkBtSocketCommPort::ClosePort() |
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231 { |
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232 Cancel(); |
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233 |
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234 if (iConnected) |
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235 { |
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236 iSock.Close(); |
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237 iConnected = EFalse; |
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238 } |
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239 |
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240 if (iServerStarted) |
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241 { |
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242 iSocketServ.Close(); |
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243 iServerStarted = EFalse; |
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244 } |
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245 } |
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246 |
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247 // |
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248 // CTrkBtSocketCommPort::SendDataL |
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249 // |
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250 // Write data to the serial type port |
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251 // |
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252 void CTrkBtSocketCommPort::SendDataL(const TDesC8& aBuffer) |
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253 { |
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254 iSock.CancelRead(); |
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255 iState = ESending; |
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256 |
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257 iSock.Write(aBuffer, iStatus); |
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258 User::WaitForRequest(iStatus); |
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259 |
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260 if (iStatus!=KErrNone) |
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261 { |
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262 ReportAndLeaveIfErrorL(iStatus.Int(), _L("Error sending data.")); |
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263 } |
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264 } |
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265 |
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266 // |
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267 // CTrkBtSocketCommPort::Listen |
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268 // |
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269 // Start listening for data coming into the serial type communications port |
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270 // |
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271 void CTrkBtSocketCommPort::Listen(CTrkFramingLayer *aFramingLayer) |
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272 { |
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273 iFramingLayer = aFramingLayer; |
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274 iListening = ETrue; |
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275 } |
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276 |
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277 // |
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278 // CTrkBtSocketCommPort::StopListening |
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279 // |
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280 // Stop listening for data coming into the serial type communications port |
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281 // |
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282 void CTrkBtSocketCommPort::StopListening() |
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283 { |
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284 if (iListening) |
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285 { |
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286 iSock.CancelRead(); |
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287 Cancel(); |
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288 Deque(); |
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289 } |
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290 |
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291 iListening = EFalse; |
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292 } |
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293 |
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294 // |
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295 // CTrkBtSocketCommPort::ReportAndLeaveIfErrorL |
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296 // |
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297 // If an error occurred, print the error information to the screen and bail out |
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298 // |
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299 void CTrkBtSocketCommPort::ReportAndLeaveIfErrorL(TInt aError, const TDesC& aDesc) |
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300 { |
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301 if (KErrNone != aError) |
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302 { |
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303 iErrorMessage.Format(_L("%S\r\nError Code: %d\r\n"), &aDesc, aError); |
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304 User::Leave(aError); |
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305 } |
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306 } |
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307 |
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308 |
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309 // |
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310 // CTrkBtSocketCommPort::IssueReadRequest |
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311 // |
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312 // Wait for data to come into the communications port |
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313 // |
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314 void CTrkBtSocketCommPort::IssueReadRequest() |
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315 { |
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316 iSock.CancelRead(); |
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317 iNextReadChar = 0; |
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318 iState = EWaiting; |
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319 iReceivedChars.Zero(); |
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320 iSock.RecvOneOrMore(iReceivedChars, 0, iStatus, iLen); |
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321 SetActive(); |
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322 } |
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323 |
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324 // |
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325 // CTrkBtSocketCommPort::DoCancel |
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326 // |
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327 // Cancel the request for data from the communications port |
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328 // |
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329 void CTrkBtSocketCommPort::DoCancel() |
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330 { |
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331 //iSock.CancelRead(); |
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332 //iPort.ReadCancel(); |
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333 } |
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334 |
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335 // |
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336 // CTrkBtSocketCommPort::RunL |
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337 // |
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338 // Called when data comes into the communications port |
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339 // |
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340 void CTrkBtSocketCommPort::RunL() |
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341 { |
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342 if (iStatus != KErrNone) |
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343 { |
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344 switch(iState) |
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345 { |
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346 case EDiscovering: |
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347 { |
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348 iConnectionListener->AsyncConnectionFailed(); |
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349 break; |
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350 } |
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351 default: |
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352 break; |
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353 } |
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354 } |
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355 else |
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356 { |
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357 switch (iState) |
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358 { |
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359 |
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360 case EWaiting: |
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361 { |
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362 if (iStatus.Int() == KErrNone) |
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363 { |
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364 while (iNextReadChar < iReceivedChars.Length()) |
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365 iFramingLayer->HandleByte(iReceivedChars[iNextReadChar++]); |
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366 } |
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367 break; |
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368 } |
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369 case ESending: |
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370 { |
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371 break; |
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372 } |
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373 case EDiscovering: |
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374 { |
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375 ConnectToPortL(); |
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376 break; |
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377 } |
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378 case EConnecting: |
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379 { |
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380 break; |
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381 } |
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382 default: |
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383 break; |
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384 } |
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385 IssueReadRequest(); |
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386 } |
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387 |
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388 } |
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389 |
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390 // |
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391 // CTrkBtSocketCommPort::DiscoverPortL |
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392 // |
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393 // Called to figure out the port number for serial profile |
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394 // |
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395 void CTrkBtSocketCommPort::DiscoverPortL() |
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396 { |
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397 StopDiscovery(); // to avoid conflicts if called several times before the old discovery is finished |
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398 |
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399 const TInt BT_UUID_SPP_SP = 0x1101; // SPP (Serial Port) UUID |
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400 |
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401 // Init new service discovery agent |
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402 iAgent = CSdpAgent::NewL( *this, iAddr); |
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403 |
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404 // Set search properties for agent (use SPP service-UUID to filter the services discovered) |
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405 iSearchPattern = CSdpSearchPattern::NewL(); |
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406 |
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407 iSearchPattern->AddL(BT_UUID_SPP_SP); |
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408 iAgent->SetRecordFilterL(*iSearchPattern); |
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409 iDiscovering = ETrue; |
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410 |
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411 // Initiate search, result will be received with call of NextRecordRequestComplete() |
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412 iAgent->NextRecordRequestL(); |
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413 iStatus = KRequestPending; |
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414 SetActive(); |
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415 } |
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416 |
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417 // |
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418 //CTrkBtSocketCommPort::StopDiscovery() |
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419 // |
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420 //Called to stop the discovery services |
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421 // |
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422 void CTrkBtSocketCommPort::StopDiscovery() |
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423 { |
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424 iDiscovering = EFalse; |
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425 |
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426 if (iAgent) |
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427 { |
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428 iAgent->Cancel(); |
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429 delete iAgent; |
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430 iAgent = NULL; |
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431 } |
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432 |
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433 if (iSearchPattern) |
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434 { |
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435 iSearchPattern->Reset(); |
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436 delete iSearchPattern; |
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437 iSearchPattern = NULL; |
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438 } |
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439 } |
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440 |
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441 |
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442 // |
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443 // CTrkBtSocketCommPort::NextRecordRequestComplete |
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444 // |
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445 // called when the service discovery agent has completed discovering services on device (i.e. if next service found or not) |
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446 // |
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447 void CTrkBtSocketCommPort::NextRecordRequestComplete(TInt aError, TSdpServRecordHandle aHandle, TInt aTotalRecordsCount) |
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448 { |
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449 if ( (KErrNone == aError) && (0 < aTotalRecordsCount) ) |
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450 { |
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451 // We got next service record, request protocol descriptor to retrieve remote port |
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452 // (it calls later the AttributeRequestResult() when the answer is ready) |
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453 TRAPD(err, iAgent->AttributeRequestL(aHandle, KSdpAttrIdProtocolDescriptorList)); |
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454 if( err ) |
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455 { |
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456 iErrorMessage.Format(_L("Error in finding the serial port record\r\nError Code: %d\r\n"),err); |
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457 iConnectionStatus = ETrkConnectionError; |
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458 StopDiscovery(); |
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459 TRequestStatus *status = &iStatus; |
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460 User::RequestComplete(status, aError); |
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461 } |
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462 } |
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463 else |
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464 { |
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465 // no any services found or error occures (probably the device is not present or SPP service is not present) |
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466 iErrorMessage.Format(_L("Error in finding the serial port record\r\nError Code: %d\r\n"),aError); |
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467 iConnectionStatus = ETrkConnectionError; |
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468 StopDiscovery(); |
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469 TRequestStatus *status = &iStatus; |
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470 User::RequestComplete(status, aError); |
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471 } |
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472 |
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473 } |
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474 |
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475 |
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476 // |
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477 //CTrkBtSocketCommPort::AttributeRequestResult |
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478 // |
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479 // Called when the service attributes for the service record have been retrieved. |
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480 // |
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481 void CTrkBtSocketCommPort::AttributeRequestResult(TSdpServRecordHandle, TSdpAttributeID, CSdpAttrValue* aAttrValue) |
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482 { |
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483 // can't ignore the call of this function because we need take care about aAttrValue |
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484 // Parse attributes, it will return results by several calls of VisitAttributeValue() |
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485 TRAPD(err, aAttrValue->AcceptVisitorL(*this)); |
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486 if( err ) |
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487 { |
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488 iErrorMessage.Format(_L("Error in finding the serial port record \r\nError Code: %d"),err); |
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489 iConnectionStatus = ETrkConnectionError; |
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490 StopDiscovery(); |
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491 TRequestStatus *status = &iStatus; |
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492 User::RequestComplete(status, err); |
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493 } |
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494 delete aAttrValue; |
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495 } |
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496 |
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497 // |
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498 // CTrkBtSocketCommPort::AttributeRequestComplete |
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499 // |
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500 // Called when the request to resolve the service attributes for the service record completes. |
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501 // |
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502 void CTrkBtSocketCommPort::AttributeRequestComplete(TSdpServRecordHandle, TInt aError) |
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503 { |
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504 // if KErrNone ==aError and we need not just the first SPP service but check several services, |
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505 // can call for iAgent->NextRecordRequestL() here (and add corresponded processing in |
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506 // NextRecordRequestComplete() ) |
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507 if (KErrNone != aError) |
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508 { |
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509 iErrorMessage.Format(_L("Error in finding the serial port record\r\nError Code: %d"),aError); |
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510 iConnectionStatus = ETrkConnectionError; |
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511 StopDiscovery(); |
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512 TRequestStatus *status = &iStatus; |
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513 User::RequestComplete(status, aError); |
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514 } |
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515 else |
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516 { |
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517 StopDiscovery(); |
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518 TRequestStatus *status = &iStatus; |
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519 User::RequestComplete(status, KErrNone); |
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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 // CTrkBtSocketCommPort::VisitAttributeValueL |
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525 // |
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526 // Called for processing of each service attribute. |
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527 // |
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528 void CTrkBtSocketCommPort::VisitAttributeValueL(CSdpAttrValue &aValue, TSdpElementType aType) |
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529 { |
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530 if (!iDiscovering) |
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531 { |
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532 return; // ignore calls to that function if not discovering currently |
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533 } |
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534 |
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535 // Check for attributes of UUID type. |
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536 // If the UUID is RFCOMM UUID, resolve the value for this attribute, |
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537 // which will be the channel number. |
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538 switch (aType) |
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539 { |
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540 case ETypeUUID: // UUID of attribute, store it |
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541 { |
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542 TPtrC8 uuid(aValue.UUID().ShortestForm()); |
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543 iCurrUUID.SetL(uuid); |
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544 break; |
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545 } |
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546 case ETypeUint: // uint value, check if the current attribute type is KRFCOMM, store the port value if "yes" |
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547 { |
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548 if (iCurrUUID == KRFCOMM) |
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549 { |
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550 iUpdatedPort = aValue.Uint(); |
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551 iPortValid = TRUE; |
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552 iDiscovering = EFalse; |
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553 } |
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554 break; |
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555 } |
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556 default: |
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557 // other attributes are not interesting for processing... |
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558 break; |
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559 } |
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560 } |
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561 |
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562 /* |
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563 * This method should be overridden |
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564 */ |
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565 void CTrkBtSocketCommPort::StartListL(CSdpAttrValueList&) |
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566 { |
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567 } |
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568 |
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569 /* |
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570 * This method should be overridden |
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571 * |
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572 */ |
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573 void CTrkBtSocketCommPort::EndListL() |
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574 { |
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575 } |