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1 /* |
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2 * Copyright (c) 2004 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 "TrkEngineModel.h" |
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23 #include "TrkSerialCommPort.h" |
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24 #include "TrkFramingLayer.h" |
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25 |
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26 |
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27 // |
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28 // Static helper functions |
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29 // |
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30 static void BuildPortName(const TDesC& aModuleName, TUint aUnit, TDes& aCompleteName) |
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31 { |
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32 aCompleteName.Zero(); |
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33 aCompleteName.Append(aModuleName); |
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34 aCompleteName.AppendFill(':', 2); |
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35 aCompleteName.AppendNum(aUnit); |
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36 } |
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37 |
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38 static TUint RateCapacityBitMaskFromRate(TUint aRate) |
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39 { |
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40 switch (aRate) |
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41 { |
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42 case 50: return KCapsBps50; |
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43 case 75: return KCapsBps75; |
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44 case 110: return KCapsBps110; |
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45 case 134: return KCapsBps134; |
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46 case 150: return KCapsBps150; |
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47 case 300: return KCapsBps300; |
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48 case 600: return KCapsBps600; |
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49 case 1200: return KCapsBps1200; |
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50 case 1800: return KCapsBps1800; |
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51 case 2000: return KCapsBps2000; |
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52 case 2400: return KCapsBps2400; |
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53 case 3600: return KCapsBps3600; |
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54 case 4800: return KCapsBps4800; |
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55 case 7200: return KCapsBps7200; |
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56 case 9600: return KCapsBps9600; |
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57 case 19200: return KCapsBps19200; |
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58 case 38400: return KCapsBps38400; |
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59 case 57600: return KCapsBps57600; |
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60 case 115200: return KCapsBps115200; |
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61 case 230400: return KCapsBps230400; |
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62 case 460800: return KCapsBps460800; |
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63 case 576000: return KCapsBps576000; |
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64 case 1152000: return KCapsBps1152000; |
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65 case 4000000: return KCapsBps4000000; |
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66 default: return 0; |
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67 } |
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68 } |
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69 |
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70 static TBps TBpsRateFromRate(TUint aRate) |
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71 { |
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72 switch (aRate) |
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73 { |
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74 case 50: return EBps50; |
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75 case 75: return EBps75; |
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76 case 110: return EBps110; |
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77 case 134: return EBps134; |
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78 case 150: return EBps150; |
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79 case 300: return EBps300; |
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80 case 600: return EBps600; |
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81 case 1200: return EBps1200; |
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82 case 1800: return EBps1800; |
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83 case 2000: return EBps2000; |
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84 case 2400: return EBps2400; |
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85 case 3600: return EBps3600; |
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86 case 4800: return EBps4800; |
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87 case 7200: return EBps7200; |
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88 case 9600: return EBps9600; |
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89 case 19200: return EBps19200; |
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90 case 38400: return EBps38400; |
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91 case 57600: return EBps57600; |
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92 case 115200: return EBps115200; |
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93 case 230400: return EBps230400; |
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94 case 460800: return EBps460800; |
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95 case 576000: return EBps576000; |
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96 case 1152000: return EBps1152000; |
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97 case 4000000: return EBps4000000; |
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98 default: return EBpsAutobaud; |
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99 } |
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100 } |
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101 |
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102 |
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103 // |
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104 // |
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105 // CTrkSerialCommPort implementation |
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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 // CTrkSerialCommPort constructor |
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111 // |
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112 CTrkSerialCommPort::CTrkSerialCommPort() |
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113 : CTrkCommPort(CActive::EPriorityStandard), |
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114 iPDD(NULL), |
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115 iPDD2(NULL), |
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116 iLDD(NULL), |
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117 iCSY(NULL), |
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118 iServerStarted(EFalse), |
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119 iConnected(EFalse), |
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120 iListening(EFalse), |
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121 iLineNumber(0) |
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122 { |
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123 } |
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124 |
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125 // |
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126 // CTrkSerialCommPort::ConstructL |
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127 // |
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128 void CTrkSerialCommPort::ConstructL(TTrkConnData& aTrkConnData , TDes& aErrorMessage) |
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129 { |
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130 iPDD = aTrkConnData.iPDD; |
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131 iLDD = aTrkConnData.iLDD; |
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132 iCSY = aTrkConnData.iCSY; |
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133 iUnitNumber = aTrkConnData.iPortNumber; |
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134 iRate = aTrkConnData.iRate; |
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135 |
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136 |
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137 TBuf<KMaxPath> initFile(KInitFilePath); |
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138 initFile.Append(KInitFileName); |
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139 |
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140 if (!iPDD.Size()) |
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141 { |
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142 aErrorMessage.Format(_L("PDD not specified in %S.\r\n"), &initFile); |
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143 User::Leave(KErrCorrupt); |
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144 } |
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145 |
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146 if (!iLDD.Size()) |
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147 { |
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148 aErrorMessage.Format(_L("LDD not specified in %S.\r\n"), &initFile); |
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149 User::Leave(KErrCorrupt); |
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150 } |
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151 |
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152 if (!iCSY.Size()) |
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153 { |
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154 aErrorMessage.Format(_L("CSY not specified in %S.\r\n"), &initFile); |
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155 User::Leave(KErrCorrupt); |
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156 } |
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157 |
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158 if (!iRate) |
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159 { |
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160 aErrorMessage.Format(_L("RATE not specified in %S.\r\n"), &initFile); |
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161 User::Leave(KErrCorrupt); |
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162 } |
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163 |
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164 iPDD2.Format(iPDD, iUnitNumber+1); |
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165 |
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166 iConnectionMessage.Format(_L("PDD: %S\r\nLDD: %S\r\nCSY: %S\r\nPort number: %d\r\nBaud rate: %d\r\n"), &iPDD2, &iLDD, &iCSY, iUnitNumber, iRate); |
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167 |
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168 if (aTrkConnData.iDefault) |
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169 { |
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170 iConnectionMessage.Insert(0, _L("No init file found, using default values.\r\n")); |
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171 } |
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172 } |
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173 |
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174 // |
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175 // CTrkSerialCommPort destructor |
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176 // |
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177 CTrkSerialCommPort::~CTrkSerialCommPort() |
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178 { |
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179 // make sure we cancel the request for data before shutting down |
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180 Cancel(); |
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181 |
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182 iPort.Close(); |
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183 iConnected = EFalse; |
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184 iServer.Close(); |
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185 iServerStarted = EFalse; |
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186 } |
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187 |
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188 // |
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189 // CTrkSerialCommPort::NewL |
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190 // |
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191 CTrkSerialCommPort* CTrkSerialCommPort::NewL(TTrkConnData& aTrkConnData, TDes& aErrorMessage) |
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192 { |
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193 CTrkSerialCommPort* self = new(ELeave) CTrkSerialCommPort; |
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194 CleanupStack::PushL(self); |
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195 self->ConstructL(aTrkConnData, aErrorMessage); |
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196 CleanupStack::Pop(self); |
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197 return self; |
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198 } |
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199 |
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200 // |
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201 // CTrkSerialCommPort::OpenPortL |
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202 // |
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203 // Open the serial type communications port |
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204 // |
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205 void CTrkSerialCommPort::OpenPortL() |
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206 { |
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207 TInt error = KErrNone; |
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208 |
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209 if (!iServerStarted) |
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210 { |
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211 StartC32(); |
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212 ReportAndLeaveIfErrorL(iServer.Connect(), |
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213 _L("Failed to connect to RCommServ.")); |
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214 iServerStarted = ETrue; |
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215 } |
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216 |
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217 // load the csy module |
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218 ReportAndLeaveIfErrorL(iServer.LoadCommModule(iCSY), _L("Failed to load CSY module.")); |
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219 |
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220 TInt ports = 0; |
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221 ReportAndLeaveIfErrorL(iServer.NumPorts(ports), |
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222 _L("Unable to obtain information about port.")); |
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223 |
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224 // make sure the unit number is in range |
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225 TSerialInfo serialInfo; |
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226 |
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227 error = KErrNotFound; |
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228 |
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229 TBuf<32> csyModule; |
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230 csyModule = iCSY; |
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231 csyModule.LowerCase(); |
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232 for (TInt i=0; i<ports && error; i++) |
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233 { |
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234 TBuf<32> module; |
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235 ReportAndLeaveIfErrorL(iServer.GetPortInfo(i, module, serialInfo), |
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236 _L("Unable to obtain information about port.")); |
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237 module.LowerCase(); |
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238 if (module == csyModule) |
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239 error = KErrNone; |
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240 } |
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241 |
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242 ReportAndLeaveIfErrorL(error, _L("Unable to obtain port information for comm module.")); |
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243 |
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244 //If pdd is "NONE", don't try to load it. |
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245 //This is true incase of USB, where the USB pdd is a kernel extension on most of the phones |
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246 //and so can't be loaded. |
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247 TBuf<10> defaultUsbPdd; |
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248 defaultUsbPdd.Copy(KDefaultUsbPDD); |
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249 if (iPDD2.Compare(defaultUsbPdd)) |
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250 { |
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251 error = User::LoadPhysicalDevice(iPDD2); |
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252 if (error != KErrNone && error != KErrAlreadyExists) |
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253 ReportAndLeaveIfErrorL(error, _L("Failed to load physical device.")); |
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254 } |
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255 |
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256 error = User::LoadLogicalDevice(iLDD); |
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257 if (error != KErrNone && error != KErrAlreadyExists) |
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258 ReportAndLeaveIfErrorL(error, _L("Failed to load logical device.")); |
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259 |
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260 // Open port (try first in DTE mode and then if unsuccessful in |
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261 // DCE mode - necessary for cogent). |
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262 |
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263 TBuf<KMaxPortName+4> portName; |
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264 BuildPortName(serialInfo.iName, iUnitNumber, portName); |
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265 error = iPort.Open(iServer, portName, ECommExclusive, ECommRoleDTE); |
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266 if (error != KErrNone) |
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267 { |
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268 ReportAndLeaveIfErrorL(iPort.Open(iServer, portName, ECommExclusive, ECommRoleDCE), |
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269 _L("Failed to open port.")); |
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270 } |
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271 iConnected = ETrue; |
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272 |
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273 // Check Speed |
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274 TCommCaps caps; |
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275 iPort.Caps(caps); |
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276 |
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277 TUint rateBitMask = RateCapacityBitMaskFromRate(iRate); |
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278 if (rateBitMask == 0 || (rateBitMask & caps().iRate) == 0) |
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279 ReportAndLeaveIfErrorL(KErrGeneral, _L("Unsupported baud rate.")); |
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280 |
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281 // Configure physical and logical characteristics |
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282 TCommConfig config; |
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283 iPort.Config(config); |
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284 config().iRate = TBpsRateFromRate(iRate); |
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285 config().iParity = EParityNone; |
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286 config().iDataBits = EData8; |
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287 config().iStopBits = EStop1; |
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288 config().iFifo = EFifoEnable; |
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289 |
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290 config().iHandshake = 0; // no flow control at all |
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291 |
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292 ReportAndLeaveIfErrorL(iPort.SetConfig(config), _L("Failed to set port configuration.")); |
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293 |
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294 iPort.SetReceiveBufferLength(MAXMESSAGESIZE); |
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295 |
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296 //reset the rx and tx buffers just in case |
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297 //if there is any stale data lying around from the previous debug sessions |
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298 iPort.ResetBuffers(); |
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299 } |
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300 |
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301 // |
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302 // CTrkSerialCommPort::ClosePort |
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303 // |
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304 // Close the communications port |
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305 // |
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306 void CTrkSerialCommPort::ClosePort() |
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307 { |
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308 Cancel(); |
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309 |
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310 if (iConnected) |
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311 { |
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312 iPort.Close(); |
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313 iConnected = EFalse; |
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314 } |
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315 |
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316 if (iServerStarted) |
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317 { |
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318 iServer.Close(); |
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319 iServerStarted = EFalse; |
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320 } |
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321 } |
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322 |
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323 // |
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324 // CTrkSerialCommPort::SendDataL |
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325 // |
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326 // Write data to the serial type port |
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327 // |
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328 void CTrkSerialCommPort::SendDataL(const TDesC8& aBuffer) |
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329 { |
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330 //_LIT8(KPrefix, "TrkToCarbide: "); |
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331 //PrintMessage(KPrefix(), aBuffer); |
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332 |
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333 TRequestStatus status; |
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334 iPort.Write(status, aBuffer); |
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335 User::WaitForRequest(status); |
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336 |
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337 User::LeaveIfError(status.Int()); |
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338 } |
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339 |
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340 // |
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341 // CTrkSerialCommPort::Listen |
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342 // |
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343 // Start listening for data coming into the serial type communications port |
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344 // |
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345 void CTrkSerialCommPort::Listen(CTrkFramingLayer *aFramingLayer) |
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346 { |
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347 iFramingLayer = aFramingLayer; |
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348 CActiveScheduler::Add(this); |
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349 IssueReadRequest(); |
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350 iListening = ETrue; |
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351 } |
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352 |
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353 // |
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354 // CTrkSerialCommPort::StopListening |
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355 // |
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356 // Stop listening for data coming into the serial type communications port |
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357 // |
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358 void CTrkSerialCommPort::StopListening() |
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359 { |
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360 if (iListening) |
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361 { |
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362 Cancel(); |
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363 Deque(); |
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364 } |
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365 |
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366 iListening = EFalse; |
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367 } |
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368 |
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369 // |
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370 // CTrkSerialCommPort::ReportAndLeaveIfErrorL |
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371 // |
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372 // If an error occurred, print the error information to the screen and bail out |
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373 // |
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374 void CTrkSerialCommPort::ReportAndLeaveIfErrorL(TInt aError, const TDesC& aDesc) |
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375 { |
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376 if (KErrNone != aError) |
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377 { |
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378 iErrorMessage.Format(_L("%S\r\nError Code: %d\r\n"), &aDesc, aError); |
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379 User::Leave(aError); |
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380 } |
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381 } |
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382 |
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383 // |
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384 // CTrkSerialCommPort::IssueReadRequest |
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385 // |
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386 // Wait for data to come into the communications port |
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387 // |
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388 void CTrkSerialCommPort::IssueReadRequest() |
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389 { |
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390 iNextReadChar = 0; |
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391 iReceivedChars.Zero(); |
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392 iPort.ReadOneOrMore(iStatus, iReceivedChars); |
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393 |
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394 SetActive(); |
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395 } |
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396 |
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397 // |
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398 // CTrkSerialCommPort::DoCancel |
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399 // |
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400 // Cancel the request for data from the communications port |
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401 // |
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402 void CTrkSerialCommPort::DoCancel() |
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403 { |
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404 iPort.ReadCancel(); |
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405 } |
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406 |
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407 // |
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408 // CTrkSerialCommPort::RunL |
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409 // |
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410 // Called when data comes into the communications port |
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411 // |
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412 void CTrkSerialCommPort::RunL() |
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413 { |
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414 //_LIT8(KPrefix, "CarbideToTrk: "); |
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415 //PrintMessage(KPrefix(), iReceivedChars); |
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416 |
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417 // pass the data onto the framing layer |
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418 if (iStatus.Int() == KErrNone) |
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419 while (iNextReadChar < iReceivedChars.Length()) |
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420 iFramingLayer->HandleByte(iReceivedChars[iNextReadChar++]); |
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421 |
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422 // continue waiting for data |
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423 IssueReadRequest(); |
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424 } |
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425 |
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426 void CTrkSerialCommPort::PrintMessage(const TDesC8& aPrefix, const TDesC8& aBinaryData) const |
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427 { |
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428 TInt msgLength = aBinaryData.Length(); |
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429 //RDebug::Printf("%S - start", &aPrefix); |
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430 for(TInt i=0; i<msgLength; i+=8) |
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431 { |
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432 TBuf8<30> tempBuf; |
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433 tempBuf.SetLength(0); |
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434 for(TInt j=i; (j<i+8) && (j<msgLength); j++) |
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435 { |
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436 TUint byte = (TUint)aBinaryData[j]; |
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437 tempBuf.AppendNumFixedWidth(byte, EHex, 2); |
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438 tempBuf.Append(' '); |
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439 } |
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440 //RDebug::Printf("%S: [%S]", &aPrefix, &tempBuf); |
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441 } |
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442 //RDebug::Printf("%S - end", &aPrefix); |
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443 |
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444 } |