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1 /* |
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2 * Copyright (c) 2006 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: Client-side implementation of BTEng |
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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 |
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20 #include <e32base.h> |
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21 #include <btmanclient.h> |
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22 |
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23 #include "btengclient.h" |
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24 #include "debug.h" |
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25 |
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26 /** Number of retries for connecting to BTEng server side */ |
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27 const TInt KBTEngConnectAttempts = 3; |
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28 |
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29 |
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30 // ======== LOCAL FUNCTIONS ======== |
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31 |
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32 // --------------------------------------------------------------------------- |
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33 // ?description |
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34 // --------------------------------------------------------------------------- |
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35 // |
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36 TInt ClientStart() |
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37 { |
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38 TRACE_FUNC_ENTRY |
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39 const TUidType serverUid( KNullUid, KNullUid, KBTEngServerUid3 ); |
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40 // Create a new server process. Simultaneous launching of two processes |
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41 // should be detected when the second one attempts to create the server |
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42 // object, failing with KErrAlreadyExists. |
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43 RProcess server; |
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44 TInt err = server.Create( KBTEngServerName, KNullDesC, serverUid ); |
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45 if( err != KErrNone ) |
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46 { |
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47 TRACE_INFO( ( _L( "[BTEng]\t Server process creation failed %d" ), err ) ); |
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48 return err; |
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49 } |
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50 TRequestStatus status; |
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51 server.Rendezvous( status ); |
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52 if( status != KRequestPending ) |
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53 { |
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54 TRACE_INFO( ( _L( "[BTEng]\t wrong status (%d), kill process"), |
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55 status.Int() ) ) |
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56 server.Kill( KErrCancel ); // Abort startup |
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57 } |
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58 else |
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59 { |
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60 TRACE_INFO( ( _L( "[BTEng]\t Server process launched") ) ) |
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61 server.Resume(); |
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62 } |
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63 User::WaitForRequest( status ); // Wait for start or death |
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64 err = status.Int(); |
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65 if( server.ExitType() == EExitPanic ) |
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66 { |
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67 // The server actually panicked; inform the client. |
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68 err = KErrDied; |
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69 } |
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70 server.Close(); |
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71 TRACE_FUNC_RES( ( _L( "result %d" ), err ) ) |
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72 return err; |
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73 } |
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74 |
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75 |
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76 // ======== MEMBER FUNCTIONS ======== |
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77 |
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78 // --------------------------------------------------------------------------- |
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79 // C++ default constructor |
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80 // --------------------------------------------------------------------------- |
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81 // |
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82 RBTEng::RBTEng() |
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83 : RSessionBase() |
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84 { |
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85 } |
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86 |
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87 |
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88 // --------------------------------------------------------------------------- |
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89 // ?implementation_description |
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90 // --------------------------------------------------------------------------- |
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91 // |
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92 TInt RBTEng::Connect() |
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93 { |
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94 TRACE_FUNC_ENTRY |
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95 TInt err = KErrNone; |
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96 for( TInt i = 0; i < KBTEngConnectAttempts; i++ ) |
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97 { |
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98 err = CreateSession( KBTEngServerName, Version() ); |
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99 if( err == KErrNone ) |
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100 { |
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101 break; // Success |
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102 } |
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103 else if( err == KErrNotFound || err == KErrServerTerminated ) |
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104 { |
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105 // Session could not be created, |
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106 // first the server needs to be started. |
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107 err = ClientStart(); |
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108 } |
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109 if( err != KErrNone && err != KErrAlreadyExists ) |
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110 { |
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111 // If the server cannot be started for other reasons than |
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112 // KErrAlreadyExists, give up... |
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113 break; |
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114 } |
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115 } |
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116 TRACE_FUNC_RES( ( _L("result %d"), err ) ) |
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117 return err; |
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118 } |
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119 |
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120 |
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121 // --------------------------------------------------------------------------- |
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122 // ?implementation_description |
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123 // --------------------------------------------------------------------------- |
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124 // |
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125 TVersion RBTEng::Version() |
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126 { |
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127 return TVersion( KBTEngServerVersionMajor, KBTEngServerVersionMinor, |
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128 KBTEngServerVersionBuild ); |
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129 } |
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130 |
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131 |
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132 // --------------------------------------------------------------------------- |
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133 // ?implementation_description |
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134 // --------------------------------------------------------------------------- |
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135 // |
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136 TInt RBTEng::SetPowerState( const TBTPowerStateValue aState, const TBool aTemp ) |
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137 { |
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138 return SendReceive( EBTEngSetPowerState, TIpcArgs( aState, aTemp ) ); |
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139 } |
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140 |
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141 |
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142 // --------------------------------------------------------------------------- |
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143 // ?implementation_description |
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144 // --------------------------------------------------------------------------- |
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145 // |
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146 TInt RBTEng::SetVisibilityMode( const TBTVisibilityMode aMode, const TInt aTime ) |
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147 { |
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148 return SendReceive( EBTEngSetVisibilityMode, TIpcArgs( aMode, aTime ) ); |
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149 } |
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150 |
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151 |
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152 // --------------------------------------------------------------------------- |
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153 // ?implementation_description |
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154 // --------------------------------------------------------------------------- |
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155 // |
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156 TInt RBTEng::ConnectDevice( const TBTDevAddr& aAddr, |
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157 const TBTDeviceClass& aDeviceClass ) |
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158 { |
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159 TRACE_BDADDR(aAddr); |
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160 TBTDevAddrPckgBuf addrPkg( aAddr ); |
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161 TBTEngDevClassPkg codPkg( aDeviceClass.DeviceClass() ); |
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162 return SendReceive( EBTEngConnectDevice, TIpcArgs( &addrPkg, &codPkg ) ); |
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163 } |
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164 |
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165 |
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166 // --------------------------------------------------------------------------- |
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167 // ?implementation_description |
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168 // --------------------------------------------------------------------------- |
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169 // |
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170 TInt RBTEng::CancelConnectDevice( const TBTDevAddr& aAddr ) |
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171 { |
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172 TRACE_BDADDR(aAddr); |
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173 TBTDevAddrPckgBuf addrPkg( aAddr ); |
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174 return SendReceive( EBTEngCancelConnectDevice, TIpcArgs( &addrPkg ) ); |
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175 } |
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176 |
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177 |
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178 // --------------------------------------------------------------------------- |
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179 // ?implementation_description |
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180 // --------------------------------------------------------------------------- |
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181 // |
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182 TInt RBTEng::DisconnectDevice( const TBTDevAddr& aAddr, |
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183 TBTDisconnectType aDiscType ) |
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184 { |
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185 TRACE_BDADDR(aAddr); |
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186 TBTDevAddrPckgBuf addrPkg( aAddr ); |
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187 TBTEngParamPkg discPkg( aDiscType ); |
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188 return SendReceive( EBTEngDisconnectDevice, TIpcArgs( &addrPkg, &discPkg ) ); |
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189 } |
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190 |
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191 |
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192 // --------------------------------------------------------------------------- |
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193 // ?implementation_description |
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194 // --------------------------------------------------------------------------- |
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195 // |
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196 TInt RBTEng::IsDeviceConnected( const TBTDevAddr& aAddr, |
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197 TBTEngConnectionStatus& aConnected ) |
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198 { |
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199 TRACE_BDADDR(aAddr); |
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200 TBTDevAddrPckgBuf addrPkg( aAddr ); |
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201 TBTEngParamPkg connPkg( aConnected ); |
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202 TInt err = SendReceive( EBTEngIsDeviceConnected, TIpcArgs( &addrPkg, &connPkg ) ); |
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203 aConnected = (TBTEngConnectionStatus) connPkg(); |
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204 return err; |
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205 } |
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206 |
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207 // --------------------------------------------------------------------------- |
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208 // ?implementation_description |
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209 // --------------------------------------------------------------------------- |
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210 // |
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211 TInt RBTEng::IsDeviceConnectable( const TBTDevAddr& aAddr, |
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212 const TBTDeviceClass& aDeviceClass, TBool& aConnectable ) |
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213 { |
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214 TRACE_BDADDR(aAddr); |
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215 TBTDevAddrPckgBuf addrPkg( aAddr ); |
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216 TBTEngDevClassPkg codPkg( aDeviceClass.DeviceClass() ); |
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217 TBTEngParamPkg connPkg( aConnectable ); |
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218 TInt err = SendReceive( EBTEngIsDeviceConnectable, TIpcArgs( &addrPkg, &codPkg, &connPkg ) ); |
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219 aConnectable = connPkg(); |
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220 return err; |
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221 } |
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222 |
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223 // --------------------------------------------------------------------------- |
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224 // ?implementation_description |
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225 // --------------------------------------------------------------------------- |
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226 // |
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227 TInt RBTEng::GetConnectedAddresses( TDes8& aArrayPkg, TBTEngParamPkg& aProfilePkg ) |
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228 { |
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229 return SendReceive( EBTEngGetConnectedAddresses, |
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230 TIpcArgs( &aArrayPkg, &aProfilePkg ) ); |
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231 } |
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232 |
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233 |
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234 // --------------------------------------------------------------------------- |
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235 // ?implementation_description |
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236 // --------------------------------------------------------------------------- |
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237 // |
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238 TInt RBTEng::NotifyConnectionEvents( TDes8& aEvent, TRequestStatus& aStatus ) |
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239 { |
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240 // Use the third slot for the event package. |
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241 SendReceive( EBTEngNotifyConnectionEvents, |
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242 TIpcArgs( NULL, NULL, &aEvent ), aStatus ); |
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243 return KErrNone; |
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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 // ?implementation_description |
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249 // --------------------------------------------------------------------------- |
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250 // |
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251 TInt RBTEng::CancelNotifyConnectionEvents() |
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252 { |
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253 return SendReceive( EBTEngCancelEventNotifier, TIpcArgs() ); |
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254 } |
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255 |
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256 |
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257 // --------------------------------------------------------------------------- |
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258 // Set a pairing observer in BTEngine. |
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259 // --------------------------------------------------------------------------- |
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260 // |
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261 TInt RBTEng::SetPairingObserver( const TBTDevAddr& aAddr, TBool aActivate ) |
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262 { |
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263 TBTDevAddrPckgBuf addrPkg( aAddr ); |
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264 return SendReceive( EBTEngSetPairingObserver, TIpcArgs( &addrPkg, aActivate ) ); |
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265 } |
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266 |
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267 |
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268 // --------------------------------------------------------------------------- |
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269 // ?implementation_description |
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270 // --------------------------------------------------------------------------- |
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271 // |
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272 TInt RBTEng::PrepareDiscovery() |
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273 { |
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274 return SendReceive( EBTEngPrepareDiscovery, TIpcArgs() ); |
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275 } |
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276 |
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277 // --------------------------------------------------------------------------- |
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278 // Start to pair a device in BTEngine. |
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279 // --------------------------------------------------------------------------- |
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280 // |
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281 void RBTEng::PairDevice( const TBTDevAddrPckgBuf& aAddr, |
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282 const TUint32& aDeviceClass, TRequestStatus& aStatus ) |
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283 { |
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284 SendReceive( EBTEngPairDevice, TIpcArgs( &aAddr, aDeviceClass ), aStatus ); |
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285 } |
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286 |
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287 // --------------------------------------------------------------------------- |
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288 // cancel pairing request |
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289 // --------------------------------------------------------------------------- |
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290 // |
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291 void RBTEng::CancelPairDevice( ) |
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292 { |
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293 (void) SendReceive( EBTEngCancelPairDevice); |
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294 } |