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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 <c32comm.h> |
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22 #include "BtSerialClient.h" |
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23 #include "messageservicesearcher.h" |
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24 #include "BtSerialEngine.pan" |
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25 #include "HtiBtEngineLogging.h" |
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26 #include "socketswriter.h" |
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27 #include "socketsreader.h" |
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28 |
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29 // CONSTANTS |
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30 const TUint KServiceUid = 0x12341101; |
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31 |
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32 // ---------------------------------------------------------------------------- |
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33 EXPORT_C CBtSerialClient* CBtSerialClient::NewL( MBtSerialClientObserver& aObserver ) |
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34 { |
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35 CBtSerialClient* self = new ( ELeave ) CBtSerialClient( aObserver ); |
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36 CleanupStack::PushL( self ); |
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37 self->ConstructL(); |
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38 CleanupStack::Pop( self ); |
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39 return self; |
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40 } |
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41 |
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42 // ---------------------------------------------------------------------------- |
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43 CBtSerialClient::CBtSerialClient( MBtSerialClientObserver& aObserver ) |
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44 : CActive( CActive::EPriorityStandard ), iObserver( aObserver ), |
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45 iState( EWaitingToGetDevice ), iCurrentServiceIndex( 0 ) |
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46 { |
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47 CActiveScheduler::Add( this ); |
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48 } |
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49 |
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50 // ---------------------------------------------------------------------------- |
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51 EXPORT_C CBtSerialClient::~CBtSerialClient() |
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52 { |
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53 delete iSocketReader; |
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54 delete iSocketWriter; |
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55 |
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56 Cancel(); |
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57 |
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58 iSocket.Close(); |
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59 iSocketServer.Close(); |
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60 |
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61 delete iServiceSearcher; |
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62 |
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63 iPowerControl.Close(); |
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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 TInt err = iPowerControl.Open(); |
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72 if ( err != KErrNone ) |
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73 { |
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74 LOGFMT_E( "Could not open BT power controller %d", err ); |
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75 User::Leave( err ); |
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76 } |
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77 |
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78 // Check current BT power state and try to turn ON if necessary |
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79 TBTPowerState powerState = EBTOff; |
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80 err = iPowerControl.GetPower( ( TBTPowerState& ) powerState, NULL ); |
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81 LOGFMT_D( "GetPower return code %d", err ); |
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82 LOGFMT_D( "Current BT power state %d", powerState ); |
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83 if ( powerState != EBTOn ) |
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84 { |
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85 LOG_I( "Turning BT ON" ); |
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86 TRequestStatus status = KRequestPending; |
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87 iPowerControl.SetPower( EBTOn, NULL, status ); |
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88 User::WaitForRequest( status ); |
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89 LOGFMT_D( "SetPower return code %d", status.Int() ); |
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90 if ( status != KErrNone && status != KErrAlreadyExists ) |
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91 { |
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92 LOGFMT_E( "Could not turn BT on, err: %d", status.Int() ); |
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93 User::Leave( status.Int() ); |
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94 } |
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95 LOG_I( "Waiting a while for BT to turn on" ); |
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96 User::After( 1 * 1000 * 1000 ); |
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97 } |
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98 |
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99 err = StartC32(); |
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100 LOGFMT_D( "StartC32 return code %d", err ); |
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101 |
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102 LOG_I( "Continuing BT connect" ); |
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103 |
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104 iServiceSearcher = CMessageServiceSearcher::NewL(); |
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105 User::LeaveIfError( iSocketServer.Connect() ); |
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106 iSocketReader = CSocketsReader::NewL( *this, iSocket ); |
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107 iSocketWriter = CSocketsWriter::NewL( *this, iSocket ); |
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108 } |
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109 |
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110 // ---------------------------------------------------------------------------- |
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111 void CBtSerialClient::DoCancel() |
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112 { |
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113 LOG_W("CBtSerialClient::DoCancel(): Doing nothing"); |
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114 } |
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115 |
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116 // ---------------------------------------------------------------------------- |
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117 void CBtSerialClient::RunL() |
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118 { |
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119 if ( iStatus != KErrNone ) |
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120 { |
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121 switch ( iState ) |
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122 { |
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123 case EGettingDevice: |
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124 if ( iStatus == KErrCancel ) |
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125 { |
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126 LOG_W( "CBtSerialClient: No device selected" ); |
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127 } |
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128 iState = EWaitingToGetDevice; |
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129 iObserver.ConnectedToServer( iStatus.Int() ); |
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130 break; |
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131 case EGettingService: |
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132 LOGFMT_W( "CBtSerialClient: Failed to fetch remote service: %d", iStatus.Int() ); |
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133 iObserver.ConnectedToServer( iStatus.Int() ); |
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134 iState = EWaitingToGetDevice; |
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135 break; |
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136 case EGettingConnection: |
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137 LOGFMT_W( "CBtSerialClient: Failed to connect to remote service: %d", iStatus.Int() ); |
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138 if ( iCurrentServiceIndex < iServiceSearcher->ServiceCount() ) |
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139 { |
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140 // Try another service |
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141 iCurrentServiceIndex++; |
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142 ConnectToServerL(); // establish RFComm connection |
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143 } |
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144 else |
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145 { |
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146 iState = EWaitingToGetDevice; |
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147 iObserver.ConnectedToServer( iStatus.Int() ); |
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148 } |
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149 break; |
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150 case EConnected: |
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151 LOGFMT_I( "CBtSerialClient: Lost connection: %d", iStatus.Int() ) |
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152 DisconnectFromServer(); |
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153 iState = EDisconnecting; |
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154 break; |
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155 case EDisconnecting: |
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156 LOGFMT_I("CBtSerialClient: Disconnected from server: %d", iStatus.Int() ); |
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157 iSocket.Close(); |
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158 iState = EWaitingToGetDevice; |
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159 iObserver.DisconnectedFromServer(); |
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160 break; |
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161 default: |
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162 Panic( EBTPointToPointInvalidLogicState ); |
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163 break; |
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164 } |
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165 } |
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166 else // iStatus = KErrNone |
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167 { |
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168 switch ( iState ) |
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169 { |
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170 case EGettingDevice: |
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171 // found a device now search for a suitable service |
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172 LOGFMT_I("CBtSerialClient: Found device: %S. Finding correct service.", &(iServiceSearcher->ResponseParams().DeviceName()) ); |
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173 iState = EGettingService; |
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174 iStatus = KRequestPending; // this means that the RunL can not |
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175 // be called until this program |
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176 // does something to iStatus |
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177 iBTServerDevice = iServiceSearcher->BTDevAddr(); |
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178 iServiceSearcher->FindServiceL( iBTServerDevice, iStatus ); |
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179 SetActive(); |
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180 break; |
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181 case EGettingService: |
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182 LOGFMT_I("CBtSerialClient: Found %d remote services", iServiceSearcher->ServiceCount()); |
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183 iState = EGettingConnection; |
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184 ConnectToServerL(); // establish RFComm connection |
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185 break; |
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186 case EGettingConnection: |
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187 LOG_I( "CBtSerialClient: Connected to remote service" ); |
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188 iState = EConnected; |
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189 iObserver.ConnectedToServer( KErrNone ); |
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190 break; |
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191 case EDisconnecting: |
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192 LOG_I( "CBtSerialClient: Disconnecting" ); |
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193 iSocket.Close(); |
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194 iState = EWaitingToGetDevice; |
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195 iObserver.DisconnectedFromServer(); |
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196 break; |
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197 default: |
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198 LOGFMT_E( "CBtSerialClient: Invalid logic state in RunL: %d. Will panic", iState ); |
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199 Panic( EBTPointToPointInvalidLogicState ); |
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200 break; |
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201 }; |
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202 } |
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203 } |
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204 |
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205 // ---------------------------------------------------------------------------- |
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206 EXPORT_C void CBtSerialClient::ConnectL() |
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207 { |
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208 if ( iState == EWaitingToGetDevice && !IsActive() ) |
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209 { |
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210 LOG_D( "CBtSerialClient: Connecting by user selection" ); |
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211 iState = EGettingDevice; |
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212 iServiceSearcher->SelectDeviceByDiscoveryL( iStatus ); |
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213 SetActive(); |
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214 } |
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215 else |
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216 { |
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217 LOG_W( "CBtSerialClient: Already connecting or connected" ); |
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218 User::Leave( KErrInUse ); |
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219 } |
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220 } |
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221 |
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222 // ---------------------------------------------------------------------------- |
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223 EXPORT_C void CBtSerialClient::ConnectL( const TBTDevAddr aBTServerDevice, |
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224 const TInt aPort ) |
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225 { |
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226 if ( iState == EWaitingToGetDevice && !IsActive() ) |
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227 { |
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228 if ( aPort >= 0 ) |
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229 { |
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230 // If there was a valid port given, add it as the first port to try |
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231 iServiceSearcher->AppendPort( aPort ); |
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232 } |
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233 LOG_D( "CBtSerialClient: Connecting by address" ); |
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234 iBTServerDevice = aBTServerDevice; |
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235 iServiceSearcher->FindServiceL( iBTServerDevice, iStatus ); |
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236 iState = EGettingService; |
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237 iStatus = KRequestPending; // this means that the RunL can not |
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238 // be called until this program |
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239 // does something to iStatus |
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240 SetActive(); |
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241 } |
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242 else |
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243 { |
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244 LOG_W("CBtSerialClient: Already connecting or connected"); |
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245 User::Leave( KErrInUse ); |
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246 } |
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247 } |
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248 |
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249 // ---------------------------------------------------------------------------- |
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250 EXPORT_C void CBtSerialClient::ConnectL( const TDesC& aBTServerDeviceName, |
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251 const TInt aPort ) |
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252 { |
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253 if ( iState == EWaitingToGetDevice && !IsActive() ) |
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254 { |
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255 if ( aPort >= 0 ) |
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256 { |
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257 // If there was a valid port given, add it as the first port to try |
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258 iServiceSearcher->AppendPort( aPort ); |
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259 } |
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260 LOG_D( "CBtSerialClient: Connecting by name" ); |
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261 iState = EGettingDevice; |
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262 iServiceSearcher->SelectDeviceByNameL( aBTServerDeviceName, iStatus ); |
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263 SetActive(); |
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264 } |
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265 else |
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266 { |
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267 LOG_W( "CBtSerialClient: Already connecting or connected" ); |
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268 User::Leave( KErrInUse ); |
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269 } |
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270 } |
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271 |
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272 // ---------------------------------------------------------------------------- |
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273 EXPORT_C TBTDevAddr CBtSerialClient::ServerAddressL() |
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274 { |
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275 if ( !Connected() ) |
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276 { |
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277 LOG_E( "CBtSerialClient: ServerAddressL: Not connected" ); |
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278 User::Leave( KErrNotReady ); |
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279 } |
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280 return iBTServerDevice; |
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281 } |
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282 |
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283 // ---------------------------------------------------------------------------- |
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284 EXPORT_C void CBtSerialClient::Disconnect() |
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285 { |
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286 if ( iState == EConnected ) |
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287 { |
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288 DisconnectFromServer(); |
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289 iState = EDisconnecting; |
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290 } |
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291 else |
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292 { |
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293 LOG_W( "CBtSerialClient: Disconnect: Not connected" ); |
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294 User::Leave( KErrDisconnected ); |
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295 } |
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296 } |
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297 |
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298 // ---------------------------------------------------------------------------- |
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299 void CBtSerialClient::DisconnectFromServer() |
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300 { |
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301 // Terminate all operations |
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302 iSocket.CancelAll(); |
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303 Cancel(); |
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304 iSocketReader->Cancel(); |
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305 iSocketWriter->CancelSending(); |
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306 |
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307 LOG_I( "CBtSerialClient: Disconnecting from server" ); |
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308 iSocket.Shutdown( RSocket::ENormal, iStatus ); |
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309 SetActive(); |
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310 } |
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311 |
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312 // ---------------------------------------------------------------------------- |
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313 void CBtSerialClient::ConnectToServerL() |
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314 { |
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315 LOG_I("CBtSerialClient: ConnectToServerL") |
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316 User::LeaveIfError( iSocket.Open( iSocketServer, KStrRFCOMM ) ); |
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317 |
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318 TBTSockAddr address; |
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319 address.SetBTAddr( iServiceSearcher->BTDevAddr() ); |
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320 address.SetPort( iServiceSearcher->Port( iCurrentServiceIndex ) ); |
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321 TBTServiceSecurity btSec; |
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322 btSec.SetUid( TUid::Uid( KServiceUid ) ); |
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323 btSec.SetAuthentication( EMitmNotRequired ); |
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324 btSec.SetEncryption( EFalse ); |
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325 btSec.SetAuthorisation( EFalse ); |
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326 btSec.SetDenied( EFalse ); |
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327 address.SetSecurity( btSec ); |
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328 |
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329 LOGFMT_I("CBtSerialClient: ConnectToServerL: Port = %d", address.Port() ); |
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330 iSocket.Connect( address, iStatus ); |
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331 |
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332 #ifdef __WINS__ |
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333 User::After( 1 ); // Needed to allow emulator client to connect to server |
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334 #endif |
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335 |
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336 SetActive(); |
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337 } |
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338 |
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339 // ---------------------------------------------------------------------------- |
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340 EXPORT_C void CBtSerialClient::SendL(const TDesC8& aData) |
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341 { |
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342 if ( !Connected() ) |
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343 { |
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344 LOG_E( "CBtSerialClient: SendL: Not connected" ); |
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345 User::Leave( KErrNotReady ); |
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346 } |
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347 |
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348 LOGFMT_D("CBtSerialClient::SendL: Sending data (max first 32 bytes): \"%S\"", &(aData.Left(32))); |
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349 iSocketWriter->SendL( aData ); // Add to data queue and start sending |
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350 LOG_D("CBtSerialClient::SendL: Sent to socket"); |
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351 } |
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352 |
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353 EXPORT_C void CBtSerialClient::ReadAsyncL() |
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354 { |
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355 if ( !Connected() ) |
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356 { |
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357 LOG_E( "CBtSerialClient: ReadAsyncL: Not connected" ); |
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358 User::Leave( KErrNotReady ); |
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359 } |
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360 iSocketReader->ReadAsync(); |
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361 } |
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362 |
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363 // ---------------------------------------------------------------------------- |
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364 EXPORT_C TInt CBtSerialClient::FreeSpaceInSendBuffer() |
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365 { |
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366 return iSocketWriter->FreeSpaceInSendBuffer(); |
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367 } |
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368 |
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369 // ---------------------------------------------------------------------------- |
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370 EXPORT_C TInt CBtSerialClient::SendBufferMaxSize() |
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371 { |
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372 return iSocketWriter->SendBufferMaxSize(); |
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373 } |
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374 |
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375 // ---------------------------------------------------------------------------- |
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376 EXPORT_C TBool CBtSerialClient::Connected() |
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377 { |
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378 return (iState == EConnected); |
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379 } |
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380 |
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381 // ---------------------------------------------------------------------------- |
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382 EXPORT_C TBool CBtSerialClient::Connecting() |
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383 { |
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384 return ( ( iState == EGettingDevice ) || |
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385 ( iState == EGettingService ) || |
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386 ( iState == EGettingConnection ) ); |
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387 } |
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388 |
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389 // ---------------------------------------------------------------------------- |
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390 EXPORT_C TInt CBtSerialClient::ServicePort() |
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391 { |
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392 if ( !Connected() ) |
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393 { |
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394 return KErrDisconnected; |
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395 } |
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396 return iServiceSearcher->Port( iCurrentServiceIndex ); |
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397 } |
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398 |
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399 // ---------------------------------------------------------------------------- |
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400 void CBtSerialClient::ReportError( TErrorType aErrorType, TInt aErrorCode ) |
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401 { |
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402 LOGFMT_W( "CBtSerialClient::ReportError: %d", aErrorCode ); |
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403 // From socket reader or writer |
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404 switch ( aErrorType ) |
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405 { |
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406 case EDisconnected: |
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407 { |
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408 LOG_I( "CBtSerialClient: disconnected" ); |
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409 } |
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410 break; |
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411 case ETimeOutOnWrite: |
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412 { |
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413 LOG_I( "CBtSerialClient: timout writing data. Disconnecting from server" ); |
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414 } |
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415 break; |
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416 case EGeneralReadError: |
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417 { |
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418 LOG_I( "CBtSerialClient: general read error. Disconnecting from server" ); |
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419 } |
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420 break; |
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421 case EGeneralWriteError: |
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422 { |
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423 LOG_I( "CBtSerialClient: general write error. Disconnecting from server" ); |
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424 } |
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425 break; |
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426 } |
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427 Disconnect(); |
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428 aErrorCode = aErrorCode; |
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429 } |
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430 |
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431 // ---------------------------------------------------------------------------- |
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432 void CBtSerialClient::NewData( const TDesC8& aData ) |
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433 { |
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434 iObserver.DataFromServer( aData ); |
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435 } |
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436 |
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437 // ---------------------------------------------------------------------------- |
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438 void CBtSerialClient::AllBufferedDataSent() |
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439 { |
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440 iObserver.AllBufferedDataSent(); |
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441 } |
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442 |
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443 // End of File |