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1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Bluetooth serial client. |
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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 FILES |
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20 #include <e32std.h> |
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21 #include <btengsettings.h> // CBTEngSettings |
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22 |
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23 #include "BtSerialClient.h" |
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24 #include "MessageServiceSearcher.h" |
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25 #include "BtSerialEngine.pan" |
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26 #include "HtiBtEngineLogging.h" |
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27 #include "socketswriter.h" |
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28 #include "socketsreader.h" |
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29 |
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30 const TInt KMaxBtStartWaitLoop = 5; |
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31 const TInt KBtStateQueryInterval = 1000000; // microseconds |
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32 |
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33 |
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34 // ---------------------------------------------------------------------------- |
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35 EXPORT_C CBtSerialClient* CBtSerialClient::NewL(MBtSerialClientObserver& aObserver) |
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36 { |
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37 CBtSerialClient* self = new (ELeave) CBtSerialClient(aObserver); |
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38 CleanupStack::PushL(self); |
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39 self->ConstructL(); |
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40 CleanupStack::Pop(self); |
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41 return self; |
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42 } |
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43 |
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44 // ---------------------------------------------------------------------------- |
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45 CBtSerialClient::CBtSerialClient(MBtSerialClientObserver& aObserver) |
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46 : CActive( CActive::EPriorityStandard ), iObserver(aObserver), |
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47 iState( EWaitingToGetDevice ), iCurrentServiceIndex( 0 ) |
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48 { |
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49 CActiveScheduler::Add( this ); |
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50 } |
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51 |
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52 // ---------------------------------------------------------------------------- |
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53 EXPORT_C CBtSerialClient::~CBtSerialClient() |
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54 { |
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55 delete iSocketReader; |
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56 delete iSocketWriter; |
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57 |
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58 Cancel(); |
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59 |
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60 iSocket.Close(); |
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61 iSocketServer.Close(); |
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62 |
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63 delete iServiceSearcher; |
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64 } |
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65 |
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66 // ---------------------------------------------------------------------------- |
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67 void CBtSerialClient::ConstructL() |
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68 { |
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69 LOG_D( "CBtSerialClient::ConstructL()" ); |
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70 |
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71 // Check Bluetooth power state |
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72 TBTPowerStateValue powerState = EBTPowerOff; |
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73 CBTEngSettings* btSettings = CBTEngSettings::NewLC(); |
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74 TInt err = btSettings->GetPowerState( powerState ); |
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75 if ( err ) |
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76 { |
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77 LOGFMT_W( "CBtSerialClient::ConstructL(): GetPowerState error %d", err ); |
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78 powerState = EBTPowerOff; |
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79 } |
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80 |
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81 // If BT not on - try to set it on |
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82 if ( powerState == EBTPowerOff ) |
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83 { |
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84 LOG_I( "CBtSerialClient::ConstructL(): BT not on - setting power on" ); |
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85 err = btSettings->SetPowerState( EBTPowerOn ); |
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86 if ( err ) |
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87 { |
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88 LOGFMT_E( "CBtSerialClient::ConstructL(): SetPowerState error %d", err ); |
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89 User::Leave( err ); |
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90 } |
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91 |
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92 // Wait until BT is reported to be on (or waiting time exceeds) |
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93 TInt loopCounter = 0; |
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94 while ( powerState == EBTPowerOff && loopCounter < KMaxBtStartWaitLoop ) |
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95 { |
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96 btSettings->GetPowerState( powerState ); |
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97 LOGFMT_D( "CBtSerialClient::ConstructL(): BT power state %d", powerState ); |
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98 User::After( KBtStateQueryInterval ); |
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99 loopCounter++; |
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100 } |
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101 |
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102 if ( powerState == EBTPowerOff ) |
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103 { |
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104 LOG_E( "CBtSerialClient::ConstructL(): Could not turn BT on" ); |
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105 User::Leave( KErrCouldNotConnect ); |
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106 } |
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107 LOG_I( "CBtSerialClient::ConstructL(): Continuing BT connect" ); |
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108 } |
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109 CleanupStack::PopAndDestroy(); // btSettings |
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110 |
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111 iServiceSearcher = CMessageServiceSearcher::NewL(); |
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112 User::LeaveIfError( iSocketServer.Connect() ); |
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113 iSocketReader = CSocketsReader::NewL( *this, iSocket ); |
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114 iSocketWriter = CSocketsWriter::NewL( *this, iSocket ); |
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115 } |
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116 |
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117 // ---------------------------------------------------------------------------- |
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118 void CBtSerialClient::DoCancel() |
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119 { |
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120 LOG_W("CBtSerialClient::DoCancel(): Doing nothing"); |
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121 } |
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122 |
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123 // ---------------------------------------------------------------------------- |
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124 void CBtSerialClient::RunL() |
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125 { |
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126 if ( iStatus != KErrNone ) |
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127 { |
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128 switch ( iState ) |
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129 { |
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130 case EGettingDevice: |
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131 if ( iStatus == KErrCancel ) |
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132 { |
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133 LOG_W( "CBtSerialClient: No device selected" ); |
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134 } |
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135 iState = EWaitingToGetDevice; |
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136 iObserver.ConnectedToServer( iStatus.Int() ); |
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137 break; |
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138 case EGettingService: |
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139 LOGFMT_W( "CBtSerialClient: Failed to fetch remote service: %d", iStatus.Int() ); |
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140 iObserver.ConnectedToServer( iStatus.Int() ); |
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141 iState = EWaitingToGetDevice; |
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142 break; |
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143 case EGettingConnection: |
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144 LOGFMT_W( "CBtSerialClient: Failed to connect to remote service: %d", iStatus.Int() ); |
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145 if ( iCurrentServiceIndex < iServiceSearcher->ServiceCount() ) |
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146 { |
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147 // Try another service |
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148 iCurrentServiceIndex++; |
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149 ConnectToServerL(); // establish RFComm connection |
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150 } |
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151 else |
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152 { |
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153 iState = EWaitingToGetDevice; |
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154 iObserver.ConnectedToServer( iStatus.Int() ); |
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155 } |
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156 break; |
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157 case EConnected: |
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158 LOGFMT_I( "CBtSerialClient: Lost connection: %d", iStatus.Int() ) |
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159 DisconnectFromServer(); |
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160 iState = EDisconnecting; |
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161 break; |
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162 case EDisconnecting: |
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163 LOGFMT_I("CBtSerialClient: Disconnected from server: %d", iStatus.Int() ); |
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164 iSocket.Close(); |
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165 iState = EWaitingToGetDevice; |
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166 iObserver.DisconnectedFromServer(); |
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167 break; |
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168 default: |
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169 Panic( EBTPointToPointInvalidLogicState ); |
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170 break; |
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171 } |
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172 } |
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173 else // iStatus = KErrNone |
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174 { |
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175 switch ( iState ) |
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176 { |
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177 case EGettingDevice: |
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178 // found a device now search for a suitable service |
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179 LOGFMT_I("CBtSerialClient: Found device: %S. Finding correct service.", &(iServiceSearcher->ResponseParams().DeviceName()) ); |
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180 iState = EGettingService; |
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181 iStatus = KRequestPending; // this means that the RunL can not |
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182 // be called until this program |
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183 // does something to iStatus |
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184 iBTServerDevice = iServiceSearcher->BTDevAddr(); |
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185 iServiceSearcher->FindServiceL( iBTServerDevice, iStatus ); |
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186 SetActive(); |
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187 break; |
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188 case EGettingService: |
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189 LOGFMT_I("CBtSerialClient: Found %d remote services", iServiceSearcher->ServiceCount()); |
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190 iState = EGettingConnection; |
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191 ConnectToServerL(); // establish RFComm connection |
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192 break; |
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193 case EGettingConnection: |
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194 LOG_I( "CBtSerialClient: Connected to remote service" ); |
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195 iState = EConnected; |
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196 iObserver.ConnectedToServer( KErrNone ); |
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197 break; |
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198 case EDisconnecting: |
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199 LOG_I( "CBtSerialClient: Disconnecting" ); |
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200 iSocket.Close(); |
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201 iState = EWaitingToGetDevice; |
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202 iObserver.DisconnectedFromServer(); |
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203 break; |
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204 default: |
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205 LOGFMT_E( "CBtSerialClient: Invalid logic state in RunL: %d. Will panic", iState ); |
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206 Panic( EBTPointToPointInvalidLogicState ); |
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207 break; |
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208 }; |
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209 } |
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210 } |
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211 |
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212 // ---------------------------------------------------------------------------- |
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213 EXPORT_C void CBtSerialClient::ConnectL() |
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214 { |
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215 if ( iState == EWaitingToGetDevice && !IsActive() ) |
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216 { |
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217 LOG_D( "CBtSerialClient: Connecting by user selection" ); |
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218 iState = EGettingDevice; |
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219 iServiceSearcher->SelectDeviceByDiscoveryL( iStatus ); |
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220 SetActive(); |
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221 } |
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222 else |
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223 { |
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224 LOG_W( "CBtSerialClient: Already connecting or connected" ); |
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225 User::Leave( KErrInUse ); |
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226 } |
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227 } |
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228 |
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229 // ---------------------------------------------------------------------------- |
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230 EXPORT_C void CBtSerialClient::ConnectL( const TBTDevAddr aBTServerDevice, |
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231 const TInt aPort ) |
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232 { |
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233 if ( iState == EWaitingToGetDevice && !IsActive() ) |
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234 { |
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235 if ( aPort >= 0 ) |
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236 { |
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237 // If there was a valid port given, add it as the first port to try |
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238 iServiceSearcher->AppendPort( aPort ); |
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239 } |
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240 LOG_D( "CBtSerialClient: Connecting by address" ); |
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241 iBTServerDevice = aBTServerDevice; |
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242 iServiceSearcher->FindServiceL( iBTServerDevice, iStatus ); |
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243 iState = EGettingService; |
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244 iStatus = KRequestPending; // this means that the RunL can not |
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245 // be called until this program |
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246 // does something to iStatus |
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247 SetActive(); |
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248 } |
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249 else |
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250 { |
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251 LOG_W("CBtSerialClient: Already connecting or connected"); |
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252 User::Leave( KErrInUse ); |
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253 } |
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254 } |
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255 |
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256 // ---------------------------------------------------------------------------- |
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257 EXPORT_C void CBtSerialClient::ConnectL( const TDesC& aBTServerDeviceName, |
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258 const TInt aPort ) |
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259 { |
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260 if ( iState == EWaitingToGetDevice && !IsActive() ) |
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261 { |
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262 if ( aPort >= 0 ) |
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263 { |
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264 // If there was a valid port given, add it as the first port to try |
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265 iServiceSearcher->AppendPort( aPort ); |
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266 } |
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267 LOG_D( "CBtSerialClient: Connecting by name" ); |
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268 iState = EGettingDevice; |
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269 iServiceSearcher->SelectDeviceByNameL( aBTServerDeviceName, iStatus ); |
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270 SetActive(); |
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271 } |
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272 else |
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273 { |
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274 LOG_W( "CBtSerialClient: Already connecting or connected" ); |
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275 User::Leave( KErrInUse ); |
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276 } |
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277 } |
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278 |
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279 // ---------------------------------------------------------------------------- |
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280 EXPORT_C TBTDevAddr CBtSerialClient::ServerAddressL() |
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281 { |
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282 if ( !Connected() ) |
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283 { |
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284 User::Leave( KErrNotReady ); |
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285 } |
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286 return iBTServerDevice; |
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287 } |
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288 |
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289 // ---------------------------------------------------------------------------- |
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290 EXPORT_C void CBtSerialClient::Disconnect() |
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291 { |
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292 if ( iState == EConnected ) |
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293 { |
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294 DisconnectFromServer(); |
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295 iState = EDisconnecting; |
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296 } |
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297 else |
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298 { |
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299 LOG_W( "CBtSerialClient: Disconnect: Not connected" ); |
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300 User::Leave( KErrDisconnected ); |
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301 } |
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302 } |
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303 |
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304 // ---------------------------------------------------------------------------- |
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305 void CBtSerialClient::DisconnectFromServer() |
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306 { |
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307 // Terminate all operations |
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308 iSocket.CancelAll(); |
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309 Cancel(); |
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310 iSocketReader->Cancel(); |
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311 iSocketWriter->CancelSending(); |
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312 |
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313 LOG_I( "CBtSerialClient: Disconnecting from server" ); |
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314 iSocket.Shutdown( RSocket::ENormal, iStatus ); |
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315 SetActive(); |
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316 } |
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317 |
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318 // ---------------------------------------------------------------------------- |
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319 void CBtSerialClient::ConnectToServerL() |
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320 { |
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321 LOG_I("CBtSerialClient: ConnectToServerL") |
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322 User::LeaveIfError( iSocket.Open( iSocketServer, KStrRFCOMM ) ); |
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323 |
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324 TBTSockAddr address; |
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325 address.SetBTAddr( iServiceSearcher->BTDevAddr() ); |
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326 address.SetPort( iServiceSearcher->Port( iCurrentServiceIndex ) ); |
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327 |
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328 LOGFMT_I("CBtSerialClient: ConnectToServerL: Port = %d", address.Port() ); |
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329 iSocket.Connect( address, iStatus ); |
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330 |
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331 #ifdef __WINS__ |
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332 User::After( 1 ); // Needed to allow emulator client to connect to server |
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333 #endif |
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334 |
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335 SetActive(); |
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336 } |
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337 |
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338 // ---------------------------------------------------------------------------- |
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339 EXPORT_C void CBtSerialClient::SendL(const TDesC8& aData) |
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340 { |
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341 if ( !Connected() ) |
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342 { |
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343 User::Leave( KErrNotReady ); |
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344 } |
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345 |
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346 LOGFMT_D("CBtSerialClient::SendL: Sending data (max first 32 bytes): \"%S\"", &(aData.Left(32))); |
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347 iSocketWriter->SendL( aData ); // Add to data queue and start sending |
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348 LOG_D("CBtSerialClient::SendL: Sent to socket"); |
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349 } |
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350 |
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351 EXPORT_C void CBtSerialClient::ReadAsyncL() |
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352 { |
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353 if ( !Connected() ) |
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354 { |
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355 User::Leave( KErrNotReady ); |
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356 } |
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357 iSocketReader->ReadAsync(); |
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358 } |
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359 |
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360 // ---------------------------------------------------------------------------- |
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361 EXPORT_C TInt CBtSerialClient::FreeSpaceInSendBuffer() |
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362 { |
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363 return iSocketWriter->FreeSpaceInSendBuffer(); |
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364 } |
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365 |
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366 // ---------------------------------------------------------------------------- |
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367 EXPORT_C TInt CBtSerialClient::SendBufferMaxSize() |
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368 { |
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369 return iSocketWriter->SendBufferMaxSize(); |
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370 } |
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371 |
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372 // ---------------------------------------------------------------------------- |
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373 EXPORT_C TBool CBtSerialClient::Connected() |
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374 { |
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375 return (iState == EConnected); |
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376 } |
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377 |
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378 // ---------------------------------------------------------------------------- |
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379 EXPORT_C TBool CBtSerialClient::Connecting() |
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380 { |
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381 return ( ( iState == EGettingDevice ) || |
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382 ( iState == EGettingService ) || |
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383 ( iState == EGettingConnection ) ); |
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384 } |
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385 |
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386 // ---------------------------------------------------------------------------- |
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387 EXPORT_C TInt CBtSerialClient::ServicePort() |
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388 { |
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389 if ( !Connected() ) |
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390 { |
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391 return KErrDisconnected; |
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392 } |
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393 return iServiceSearcher->Port( iCurrentServiceIndex ); |
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394 } |
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395 |
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396 // ---------------------------------------------------------------------------- |
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397 void CBtSerialClient::ReportError( TErrorType aErrorType, TInt aErrorCode ) |
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398 { |
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399 LOGFMT_W( "CBtSerialClient::ReportError: %d", aErrorCode ); |
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400 // From socket reader or writer |
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401 switch ( aErrorType ) |
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402 { |
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403 case EDisconnected: |
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404 { |
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405 LOG_I( "CBtSerialClient: disconnected" ); |
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406 } |
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407 break; |
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408 case ETimeOutOnWrite: |
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409 { |
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410 LOG_I( "CBtSerialClient: timout writing data. Disconnecting from server" ); |
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411 } |
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412 break; |
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413 case EGeneralReadError: |
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414 { |
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415 LOG_I( "CBtSerialClient: general read error. Disconnecting from server" ); |
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416 } |
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417 break; |
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418 case EGeneralWriteError: |
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419 { |
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420 LOG_I( "CBtSerialClient: general write error. Disconnecting from server" ); |
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421 } |
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422 break; |
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423 } |
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424 Disconnect(); |
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425 aErrorCode = aErrorCode; |
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426 } |
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427 |
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428 // ---------------------------------------------------------------------------- |
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429 void CBtSerialClient::NewData( const TDesC8& aData ) |
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430 { |
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431 iObserver.DataFromServer( aData ); |
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432 } |
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433 |
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434 // ---------------------------------------------------------------------------- |
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435 void CBtSerialClient::AllBufferedDataSent() |
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436 { |
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437 iObserver.AllBufferedDataSent(); |
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438 } |
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439 |
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440 // End of File |