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1 /* |
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2 * Copyright (c) 2002-2009 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 the License "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: Implementation of RWlanLogicalChannel inline methods. |
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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 * %version: 16 % |
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20 */ |
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21 |
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22 // ----------------------------------------------------------------------------- |
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23 // |
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24 // ----------------------------------------------------------------------------- |
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25 // |
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26 inline TVersion RWlanLogicalChannel::VersionRequired() const |
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27 { |
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28 return TVersion( |
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29 KWlanDriverMajorVersion, |
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30 KWlanDriverMinorVersion, |
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31 KWlanDriverBuildVersion ); |
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32 } |
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33 |
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34 // ----------------------------------------------------------------------------- |
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35 // |
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36 // ----------------------------------------------------------------------------- |
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37 // |
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38 inline TInt RWlanLogicalChannel::Open( |
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39 TWlanUnit aUnit, |
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40 TOpenParam& aOpenParam ) |
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41 { |
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42 iWlanSystemInitialized = EFalse; |
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43 |
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44 TInt err = DoCreate( |
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45 LDD_NAME, |
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46 VersionRequired(), |
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47 aUnit, |
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48 NULL, |
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49 NULL, |
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50 EOwnerProcess); |
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51 |
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52 if ( err == KErrNone ) |
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53 { |
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54 // driver load sequence success |
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55 // do system init |
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56 err = InitWlanSystem( aOpenParam ); |
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57 |
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58 if ( err == KErrNone ) |
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59 { |
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60 // WLAN system successfully initialized |
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61 iWlanSystemInitialized = ETrue; |
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62 } |
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63 } |
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64 |
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65 return err; |
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66 } |
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67 |
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68 // ----------------------------------------------------------------------------- |
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69 // |
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70 // ----------------------------------------------------------------------------- |
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71 // |
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72 inline void RWlanLogicalChannel::CloseChannel() |
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73 { |
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74 // release WLAN system resources only if we have been able to do the |
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75 // initialization successfully. |
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76 // This check is done to prevent a release attempt in a case where the |
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77 // device driver framework has not been properly initialized to be able to |
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78 // handle requests |
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79 if ( iWlanSystemInitialized ) |
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80 { |
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81 TRequestStatus status; |
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82 DoRequest( EWlanFinitSystem, status ); |
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83 User::WaitForRequest(status); |
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84 |
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85 // not initialized any more. This is needed to handle the case |
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86 // that this method is called multiple times |
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87 iWlanSystemInitialized = EFalse; |
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88 } |
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89 // internally call close |
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90 Close(); |
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91 } |
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92 |
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93 // ----------------------------------------------------------------------------- |
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94 // |
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95 // ----------------------------------------------------------------------------- |
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96 // |
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97 inline TInt RWlanLogicalChannel::InitWlanSystem( |
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98 TOpenParam& aOpenParam ) |
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99 { |
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100 TRequestStatus status; |
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101 DoRequest( EWlanInitSystem, status, &aOpenParam ); |
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102 User::WaitForRequest(status); |
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103 return status.Int(); |
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104 } |
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105 |
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106 // ----------------------------------------------------------------------------- |
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107 // |
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108 // ----------------------------------------------------------------------------- |
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109 // |
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110 inline TInt RWlanLogicalChannel::ManagementCommand( |
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111 const TDesC8& aInBuffer, |
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112 TDes8* aOutBuffer, |
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113 TRequestStatus* aStatus) |
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114 { |
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115 TInt ret( KErrNoMemory ); |
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116 SOidMsgStorage* pdu( new SOidMsgStorage ); |
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117 |
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118 if ( pdu ) |
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119 { |
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120 TUint32 input_param_len( aInBuffer.Length() ); |
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121 os_memcpy( pdu, aInBuffer.Ptr(), input_param_len ); |
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122 |
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123 SOutputBuffer output = { NULL, 0 }; |
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124 if ( aOutBuffer ) |
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125 { |
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126 output.iData = const_cast<TUint8*>(aOutBuffer->Ptr()); |
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127 output.iLen = aOutBuffer->Length(); |
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128 } |
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129 |
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130 if (aStatus == NULL) |
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131 { |
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132 // Execute command synchronously |
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133 TRequestStatus status; |
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134 |
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135 DoRequest( |
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136 EWlanCommand, |
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137 status, |
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138 pdu, |
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139 (output.iData ? &output : NULL) ); |
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140 |
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141 User::WaitForRequest(status); |
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142 |
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143 ret = status.Int(); |
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144 } |
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145 else |
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146 { |
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147 // Execute command asynchronously |
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148 |
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149 iAsyncOidCommandMsg = *pdu; |
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150 iAsyncOidCommandOutput = output; |
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151 DoRequest( |
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152 EWlanCommand, |
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153 *aStatus, |
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154 &iAsyncOidCommandMsg, |
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155 (output.iData ? &iAsyncOidCommandOutput : NULL) ); |
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156 |
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157 ret = KErrNone; |
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158 } |
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159 |
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160 // always remember to deallocate |
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161 delete pdu; |
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162 } |
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163 |
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164 return ret; |
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165 } |
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166 |
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167 // ----------------------------------------------------------------------------- |
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168 // |
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169 // ----------------------------------------------------------------------------- |
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170 // |
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171 inline void RWlanLogicalChannel::RequestSignal( |
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172 TRequestStatus &aStatus, |
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173 TIndication &aBuffer) |
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174 { |
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175 DoRequest(EWlanRequestNotify, aStatus, &aBuffer); |
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176 } |
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177 |
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178 // ----------------------------------------------------------------------------- |
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179 // |
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180 // ----------------------------------------------------------------------------- |
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181 // |
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182 inline void RWlanLogicalChannel::CancelRequestSignal() |
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183 { |
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184 // DoCancel uses mask instead of real values. |
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185 DoCancel(1<<EWlanRequestNotify); |
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186 } |
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187 |
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188 // ----------------------------------------------------------------------------- |
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189 // |
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190 // ----------------------------------------------------------------------------- |
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191 // |
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192 inline void RWlanLogicalChannel::CancelRxRequests() |
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193 { |
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194 // DoCancel uses mask instead of real values. |
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195 DoCancel(1<<EWlanRequestFrame); |
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196 } |
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197 |
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198 // ----------------------------------------------------------------------------- |
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199 // |
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200 // ----------------------------------------------------------------------------- |
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201 // |
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202 inline TInt RWlanLogicalChannel::InitialiseBuffers( |
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203 RFrameXferBlock*& aFrameXferBlock ) |
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204 { |
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205 TInt status ( KErrNone ); |
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206 |
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207 TSharedChunkInfo info; |
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208 |
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209 status = DoSvControl( EWlanSvControlInitBuffers, |
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210 static_cast<TAny*>(&info) ); |
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211 |
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212 if ( status == KErrNone ) |
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213 { |
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214 // shared memory chunk initialization success |
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215 |
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216 // Set the handle for the shared memory chunk |
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217 iSharedMemoryChunk.SetHandle( info.iChunkHandle ); |
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218 |
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219 // Set the relevant user mode |
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220 // addresses as offsets from the chunk base address |
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221 |
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222 TUint8* baseAddress ( iSharedMemoryChunk.Base() ); |
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223 |
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224 const TUint KRxDataChunkSize( |
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225 info.iSize |
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226 - ( sizeof( TDataBuffer ) |
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227 + KMgmtSideTxBufferLength |
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228 + KProtocolStackSideTxDataChunkSize |
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229 + sizeof( RFrameXferBlock ) |
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230 + sizeof( RFrameXferBlockProtocolStack ) ) ); |
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231 |
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232 aFrameXferBlock = reinterpret_cast<RFrameXferBlock*>( |
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233 baseAddress |
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234 + KRxDataChunkSize |
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235 + sizeof( TDataBuffer ) |
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236 + KMgmtSideTxBufferLength |
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237 + KProtocolStackSideTxDataChunkSize ); |
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238 |
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239 aFrameXferBlock->SetRxDataChunkField( reinterpret_cast<TLinAddr>( |
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240 baseAddress) ); |
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241 |
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242 aFrameXferBlock->SetTxDataBufferField( reinterpret_cast<TLinAddr>( |
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243 baseAddress |
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244 + KRxDataChunkSize ) ); |
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245 } |
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246 |
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247 return status; |
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248 } |
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249 |
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250 // ----------------------------------------------------------------------------- |
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251 // |
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252 // ----------------------------------------------------------------------------- |
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253 // |
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254 inline TInt RWlanLogicalChannel::ReleaseBuffers() |
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255 { |
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256 // close the handle to the shared memory chunk |
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257 iSharedMemoryChunk.Close(); |
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258 |
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259 return DoSvControl( EWlanSvControlFreeBuffers ); |
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260 } |
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261 |
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262 // ----------------------------------------------------------------------------- |
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263 // |
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264 // ----------------------------------------------------------------------------- |
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265 // |
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266 inline void RWlanLogicalChannel::WriteFrame( |
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267 TRequestStatus &aStatus ) |
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268 { |
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269 DoRequest( EWlanRequestSend, aStatus ); |
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270 } |
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271 |
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272 // ----------------------------------------------------------------------------- |
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273 // |
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274 // ----------------------------------------------------------------------------- |
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275 // |
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276 inline void RWlanLogicalChannel::RequestFrame( |
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277 TRequestStatus &aStatus ) |
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278 { |
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279 DoRequest( EWlanRequestFrame, aStatus ); |
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280 } |