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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: |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include <e32cons.h> |
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20 #include <f32file.h> |
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21 |
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22 #include "TrkConnData.h" |
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23 #include "TrkDbgTrcCommPort.h" |
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24 #include "TrkFramingLayer.h" |
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25 |
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26 _LIT(KSendErrMsg, "Failed to write to the DbgTrc channel"); |
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27 |
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28 // |
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29 // Default comm values |
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30 // |
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31 |
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32 |
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33 // |
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34 // Static helper functions |
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35 // |
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36 |
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37 // |
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38 // |
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39 // CTrkDbgTrcCommPort implementation |
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40 // |
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41 // |
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42 |
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43 // |
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44 // CTrkDbgTrcCommPort constructor |
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45 // |
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46 CTrkDbgTrcCommPort::CTrkDbgTrcCommPort() |
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47 : CTrkCommPort(CActive::EPriorityStandard), |
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48 iConnected(EFalse), |
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49 iListening(EFalse), |
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50 iLineNumber(0) |
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51 { |
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52 } |
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53 |
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54 // |
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55 // CTrkDbgTrcCommPort::ConstructL |
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56 // |
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57 void CTrkDbgTrcCommPort::ConstructL(TTrkConnData aTrkConnData, TDes& aErrorMessage) |
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58 { |
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59 iUnitNumber = aTrkConnData.iPortNumber; |
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60 } |
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61 |
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62 // |
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63 // CTrkDbgTrcCommPort destructor |
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64 // |
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65 CTrkDbgTrcCommPort::~CTrkDbgTrcCommPort() |
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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 // CTrkDbgTrcCommPort::NewL |
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72 // |
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73 CTrkDbgTrcCommPort* CTrkDbgTrcCommPort::NewL(TTrkConnData aTrkConnData, TDes& aErrorMessage) |
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74 { |
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75 CTrkDbgTrcCommPort* self = new(ELeave) CTrkDbgTrcCommPort; |
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76 CleanupStack::PushL(self); |
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77 self->ConstructL(aTrkConnData, aErrorMessage); |
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78 CleanupStack::Pop(self); |
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79 return self; |
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80 } |
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81 |
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82 // |
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83 // CTrkDbgTrcCommPort::OpenPortL |
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84 // |
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85 // Open the serial type communications port |
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86 // |
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87 void CTrkDbgTrcCommPort::OpenPortL() |
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88 { |
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89 TInt error = KErrNone; |
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90 |
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91 error = iDbgTrcPort.Connect(); |
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92 if ((KErrAlreadyExists != error) && (KErrNone != error)) |
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93 ReportAndLeaveIfErrorL(error, _L("Failed to connect to the debug trace comms server.")); |
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94 |
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95 TAcmConfig config; |
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96 error = iDbgTrcPort.GetAcmConfig(config); |
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97 |
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98 if (KErrNone != error) |
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99 ReportAndLeaveIfErrorL(error, _L("Failed to get the port configuration.")); |
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100 |
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101 TAcmConfigV01 config1(*(TAcmConfigV01*)config.Ptr()); |
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102 config1.iPortNumber = iUnitNumber; |
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103 |
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104 error = iDbgTrcPort.SetAcmConfig(config); |
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105 if (KErrNone != error && KErrInUse != error) |
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106 ReportAndLeaveIfErrorL(error, _L("Failed to set the port configuration.")); |
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107 |
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108 error = iDbgTrcPort.Open(); |
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109 |
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110 if (KErrNone != error) |
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111 ReportAndLeaveIfErrorL(error, _L("Failed to open debug trace port.")); |
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112 |
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113 iConnected = ETrue; |
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114 |
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115 // register the protocol id here |
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116 error = iDbgTrcPort.RegisterProtocolID(EOstProtTrk, EFalse); |
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117 if (KErrNone != error) |
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118 ReportAndLeaveIfErrorL(error, _L("Failed to register the protocol id.")); |
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119 |
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120 |
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121 iConnectionMessage.Format(_L("Connection: USB \r\nPort: %d\r\n"), iUnitNumber); |
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122 } |
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123 |
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124 // |
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125 // CTrkDbgTrcCommPort::ClosePort |
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126 // |
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127 // Close the communications port |
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128 // |
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129 void CTrkDbgTrcCommPort::ClosePort() |
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130 { |
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131 Cancel(); |
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132 |
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133 if (iConnected) |
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134 { |
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135 iDbgTrcPort.UnRegisterProtocolID(EOstProtTrk); |
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136 //iDbgTrcPort.Disconnect(); |
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137 iDbgTrcPort.Close(); |
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138 iConnected = EFalse; |
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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 // CTrkDbgTrcCommPort::SendDataL |
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144 // |
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145 // Write data to the serial type port |
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146 // |
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147 void CTrkDbgTrcCommPort::SendDataL(const TDesC8& aBuffer) |
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148 { |
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149 TRequestStatus status; |
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150 iDbgTrcPort.WriteMessage(status, aBuffer, EFalse); |
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151 User::WaitForRequest(status); |
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152 |
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153 TInt err = status.Int(); |
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154 ReportAndLeaveIfErrorL(err, KSendErrMsg); |
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155 } |
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156 |
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157 // |
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158 // CTrkDbgTrcCommPort::Listen |
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159 // |
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160 // Start listening for data coming into the serial type communications port |
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161 // |
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162 void CTrkDbgTrcCommPort::Listen(CTrkFramingLayer *aFramingLayer) |
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163 { |
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164 iFramingLayer = aFramingLayer; |
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165 CActiveScheduler::Add(this); |
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166 IssueReadRequest(); |
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167 iListening = ETrue; |
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168 } |
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169 |
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170 // |
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171 // CTrkDbgTrcCommPort::StopListening |
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172 // |
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173 // Stop listening for data coming into the serial type communications port |
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174 // |
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175 void CTrkDbgTrcCommPort::StopListening() |
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176 { |
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177 if (iListening) |
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178 { |
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179 Cancel(); |
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180 Deque(); |
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181 } |
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182 |
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183 iListening = EFalse; |
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184 } |
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185 |
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186 // |
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187 // CTrkDbgTrcCommPort::ReportAndLeaveIfErrorL |
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188 // |
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189 // If an error occurred, print the error information to the screen and bail out |
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190 // |
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191 void CTrkDbgTrcCommPort::ReportAndLeaveIfErrorL(TInt aError, const TDesC& aDesc) |
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192 { |
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193 if (KErrNone != aError) |
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194 { |
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195 iErrorMessage.Format(_L("%S\r\nError Code: %d\r\n"), &aDesc, aError); |
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196 User::Leave(aError); |
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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 // CTrkDbgTrcCommPort::IssueReadRequest |
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203 // |
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204 // Wait for data to come into the communications port |
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205 // |
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206 void CTrkDbgTrcCommPort::IssueReadRequest() |
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207 { |
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208 iNextReadChar = 0; |
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209 iDbgTrcPort.ReadMessage(iStatus, iReceivedChars); |
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210 SetActive(); |
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211 } |
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212 |
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213 // |
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214 // CTrkDbgTrcCommPort::DoCancel |
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215 // |
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216 // Cancel the request for data from the communications port |
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217 // |
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218 void CTrkDbgTrcCommPort::DoCancel() |
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219 { |
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220 iDbgTrcPort.ReadCancel(); |
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221 } |
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222 |
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223 // |
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224 // CTrkDbgTrcCommPort::RunL |
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225 // |
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226 // Called when data comes into the communications port |
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227 // |
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228 void CTrkDbgTrcCommPort::RunL() |
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229 { |
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230 // pass the data onto the framing layer |
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231 if (iStatus.Int() == KErrNone) |
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232 { |
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233 while (iNextReadChar < iReceivedChars.Length()) |
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234 iFramingLayer->HandleByte(iReceivedChars[iNextReadChar++]); |
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235 } |
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236 // continue waiting for data |
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237 IssueReadRequest(); |
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238 } |
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239 |