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1 /* |
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2 * Copyright (c) 2007-2008 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: |
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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 FILES |
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21 #include "dpdef.h" // dataport definitions |
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22 #include "dpdataport.h" // dataport main and c32 interface |
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23 #include "dpbreak.h" // break |
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24 #include "dptx2pn.h" // moves data from tx buffer to isc api |
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25 #include "dpstd.h" // fault codes etc. |
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26 #include "dppif.h" // pipe interface (pif) |
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27 #include "dpflowctrl.h" // flow control handling |
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28 #include "dpdataconfig.h" // configuration store |
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29 #include "dpparityhandler.h" // parity bit handling in 7-bit data mode |
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30 #include "pep_comm_types.h" // pep_comm_types |
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31 #include "dplog.h" // dataport logging |
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32 #include "osttracedefinitions.h" |
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33 #ifdef OST_TRACE_COMPILER_IN_USE |
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34 #include "dptx2pntraces.h" |
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35 #endif |
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36 |
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37 // EXTERNAL DATA STRUCTURES |
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38 // none |
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39 |
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40 // EXTERNAL FUNCTION PROTOTYPES |
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41 // none |
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42 |
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43 // CONSTANTS |
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44 // none |
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45 |
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46 // MACROS |
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47 // none |
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48 |
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49 // LOCAL CONSTANTS AND MACROS |
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50 // none |
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51 |
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52 // MODULE DATA STRUCTURES |
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53 // none |
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54 |
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55 // LOCAL FUNCTION PROTOTYPES |
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56 // none |
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57 |
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58 // FORWARD DECLARATIONS |
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59 // none |
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60 |
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61 // ============================= LOCAL FUNCTIONS =============================== |
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62 // none |
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63 |
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64 // ============================ MEMBER FUNCTIONS =============================== |
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65 |
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66 // --------------------------------------------------------- |
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67 // C++ default constructor. |
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68 // |
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69 // --------------------------------------------------------- |
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70 CDpTx2Pn::CDpTx2Pn( |
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71 CDpDataPort& aDataPort ) : |
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72 CActive( KDpTx2PnPriority ), |
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73 iDataPort( aDataPort ), |
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74 iBreak( iDataPort.BreakHandler() ), |
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75 iBufferTx( iDataPort.Tx() ), |
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76 iPifDcs( iDataPort.Pif() ), |
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77 iFlowCtrl( iDataPort.FlowCtrl() ), |
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78 iDataConfig( iDataPort.DataConfig() ), |
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79 iParityHandler( iDataPort.ParityHandler() ), |
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80 iTx( 0, 0 ), |
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81 iTxTail( 0, 0 ), |
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82 iRole( MDpDataClient::EDbDataClientReader ) |
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83 { |
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84 OstTrace0( TRACE_NORMAL, CDPTX2PN_CDPTX2PN, "CDpTx2Pn::CDpTx2Pn" ); |
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85 LOGM(" CDpTx2Pn::CDpTx2Pn"); |
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86 } |
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87 |
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88 // --------------------------------------------------------- |
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89 // CDpTx2Pn::ConstructL |
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90 // Symbian 2nd phase constructor. |
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91 // --------------------------------------------------------- |
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92 void CDpTx2Pn::ConstructL() |
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93 { |
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94 OstTrace0( TRACE_NORMAL, CDPTX2PN_CONSTRUCTL, "CDpTx2Pn::ConstructL" ); |
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95 LOGM(" CDpTx2Pn::ConstructL"); |
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96 |
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97 // If registering fails => can't do nothing here => must leave |
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98 User::LeaveIfError( iBufferTx.RegisterDataClient( *this ) ); |
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99 |
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100 // initialise inner observer object |
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101 iDpTx2PnPifObserver.Init( this ); |
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102 // register to PIF as observer |
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103 iPifDcs.Attach( iDpTx2PnPifObserver ); |
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104 // initialise inner observer object |
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105 iDpTx2PnFcObserver.Init( this ); |
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106 // register to FlowCtrl as observer |
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107 iFlowCtrl.Attach( iDpTx2PnFcObserver ); |
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108 |
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109 CActiveScheduler::Add( this ); |
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110 |
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111 if ( !IsActive() ) |
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112 { |
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113 iRequestActive = ETrue; |
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114 iStatus = KRequestPending; |
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115 SetActive(); |
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116 } |
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117 //no else |
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118 } |
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119 |
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120 // --------------------------------------------------------- |
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121 // CDpTx2Pn::NewL |
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122 // Static constructor. |
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123 // --------------------------------------------------------- |
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124 CDpTx2Pn* CDpTx2Pn::NewL( |
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125 CDpDataPort& aDataPort ) |
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126 { |
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127 OstTrace0( TRACE_NORMAL, CDPTX2PN_NEWL, "CDpTx2Pn::NewL" ); |
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128 LOGM(" CDpTx2Pn::NewL"); |
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129 |
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130 CDpTx2Pn* self = new( ELeave ) CDpTx2Pn( aDataPort ); |
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131 |
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132 CleanupStack::PushL( self ); |
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133 self->ConstructL(); |
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134 CleanupStack::Pop( self ); |
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135 |
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136 return self; |
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137 } |
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138 |
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139 // --------------------------------------------------------- |
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140 // CDpTx2Pn::~CDpTx2Pn |
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141 // Destructor |
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142 // --------------------------------------------------------- |
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143 CDpTx2Pn::~CDpTx2Pn() |
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144 { |
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145 OstTrace0( TRACE_NORMAL, DUP1_CDPTX2PN_CDPTX2PN, "CDpTx2Pn::~CDpTx2Pn" ); |
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146 LOGM(" CDpTx2Pn::~CDpTx2Pn"); |
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147 DEBUG( "CDpTx2Pn::~CDpTx2Pn" ) |
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148 |
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149 // unregister from PIF as observer |
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150 iPifDcs.Detach( iDpTx2PnPifObserver ); |
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151 // unregister from FlowCtrl as observer |
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152 iFlowCtrl.Detach( iDpTx2PnFcObserver ); |
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153 } |
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154 |
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155 // --------------------------------------------------------- |
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156 // CDpTx2Pn::RunL |
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157 // This is called when Tx2Pn is signalled. Tx2Pn can be |
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158 // signalled by using iDataPort.SignalTx2Pn() or inside |
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159 // CDpTx2Pn class just calling ReleaseNotify(). |
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160 // --------------------------------------------------------- |
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161 // |
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162 void CDpTx2Pn::RunL() |
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163 { |
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164 OstTrace1( TRACE_NORMAL, CDPTX2PN_RUNL, "CDpTx2Pn::RunL - Port: %u", iDataPort.PortUnit() ); |
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165 LOGM1("CDpTx2Pn::RunL - Port %d", iDataPort.PortUnit() ); |
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166 DEBUG("CDpTx2Pn::RunL\r\n" ) |
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167 |
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168 TInt ret( KErrNone ); |
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169 TBool isNotReady( EFalse ); |
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170 |
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171 // Request is completed |
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172 iRequestActive = EFalse; |
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173 |
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174 if ( iStatus != KErrCancel ) |
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175 { |
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176 if ( !IsFlowCtrlOn() ) |
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177 { |
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178 // Call WritePn |
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179 ret = WritePn(); |
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180 |
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181 switch ( ret ) |
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182 { |
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183 case KErrNone: |
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184 case KErrLocked: |
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185 { |
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186 // Ok, do nothing |
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187 break; |
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188 } |
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189 case KErrNotReady: |
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190 { |
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191 LOG1("CDpTx2Pn::RunL - Error: %d", ret ); |
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192 OstTrace1( TRACE_NORMAL, DUP1_CDPTX2PN_RUNL, "CDpTx2Pn:: - Error: %d", ret ); |
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193 // Try to recover from KErrNotReady fail |
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194 if ( !IsActive() ) |
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195 { |
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196 iRequestActive = ETrue; |
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197 iStatus = KRequestPending; |
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198 SetActive(); |
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199 } |
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200 //no else |
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201 isNotReady = ETrue; |
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202 break; |
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203 } |
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204 case KErrOverflow: |
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205 case KErrNoMemory: |
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206 { |
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207 LOG1("CDpTx2Pn::RunL - Error: %d", ret ); |
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208 OstTrace1( TRACE_NORMAL, DUP2_CDPTX2PN_RUNL, "CDpTx2Pn:: - Error: %d", ret ); |
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209 |
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210 // KErrOverFlow (== ISC flow control on), |
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211 // KErrNomemory (== other ISC problems, no memory) |
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212 // => send failed |
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213 // Keep data in buffer but release data element |
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214 // (will be reserved again) |
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215 if ( KErrNone == iBufferTx.ReadElement().Release( 0 ) ) |
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216 { |
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217 // reset descriptors |
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218 iTx.SetLength( 0 ); |
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219 iTxTail.SetLength( 0 ); |
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220 } |
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221 break; |
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222 } |
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223 default: |
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224 { |
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225 LOG1("CDpTx2Pn::RunL - Error: %d", ret ); |
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226 OstTrace1( TRACE_NORMAL, DUP3_CDPTX2PN_RUNL, "CDpTx2Pn:: - Error: %d", ret ); |
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227 |
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228 // Something went wrong in WritePn method |
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229 // e.g. element reservation, must leave. |
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230 User::Leave(ret); |
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231 break; |
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232 } |
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233 |
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234 } // switch ( ret ) |
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235 } |
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236 else |
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237 { |
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238 LOG(" CDpTx2Pn::RunL, Flow control blocking"); |
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239 OstTrace0( TRACE_NORMAL, DUP4_CDPTX2PN_RUNL, "CDpTx2Pn:: Flow control blocking" ); |
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240 } |
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241 |
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242 if ( !isNotReady ) |
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243 { |
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244 // Transmit buffer empty, is client intrested about that |
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245 if ( 0 == ( iBufferTx.UsedBytes() ) && ( iOutBufIsEmptyNotify ) ) |
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246 { |
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247 // We should notify client now. |
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248 iOutBufIsEmptyNotify = EFalse; |
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249 iDataPort.NotifyOutputEmptyCompleted( KErrNone ); |
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250 } |
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251 //no else |
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252 |
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253 // Set active again |
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254 if ( !IsActive() ) |
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255 { |
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256 iRequestActive = ETrue; |
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257 iStatus = KRequestPending; |
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258 SetActive(); |
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259 } |
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260 //no else |
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261 |
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262 // Signal ourselves only if there is data in buffer and |
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263 // DP->DCS flow control is off. |
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264 if ( iBufferTx.UsedBytes() && !IsFlowCtrlOn() ) |
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265 { |
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266 ReleaseNotify(); |
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267 } |
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268 //no else |
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269 } |
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270 //no else |
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271 } |
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272 //no else |
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273 |
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274 } |
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275 |
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276 // --------------------------------------------------------- |
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277 // CDpTx2Pn::RunError |
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278 // Leave in RunL() is handled here. Error code is returned, |
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279 // when internal error has occured. |
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280 // --------------------------------------------------------- |
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281 // |
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282 TInt CDpTx2Pn::RunError( |
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283 TInt aError ) |
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284 { |
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285 OstTrace0( TRACE_NORMAL, CDPTX2PN_RUNERROR, "CDpTx2Pn::RunError" ); |
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286 OstTraceExt2( TRACE_NORMAL, DUP1_CDPTX2PN_RUNERROR, "CDpTx2Pn:: Port: %u, error code: %d", iDataPort.PortUnit(), aError ); |
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287 |
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288 LOGM2("CDpTx2Pn::RunError - Port %d, error code: %d", |
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289 iDataPort.PortUnit(), aError ); |
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290 |
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291 return aError; |
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292 } |
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293 |
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294 // --------------------------------------------------------- |
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295 // CDpTx2Pn::DoCancel |
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296 // This method cancels this active object by |
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297 // RequestComplete(). This method must be called directly |
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298 // (not through Cancel()), when RunL() should be completed |
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299 // with KErrCancel. |
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300 // --------------------------------------------------------- |
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301 // |
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302 void CDpTx2Pn::DoCancel() |
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303 { |
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304 OstTrace0( TRACE_NORMAL, CDPTX2PN_DOCANCEL, "CDpTx2Pn::DoCancel" ); |
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305 LOGM(" CDpTx2Pn::DoCancel"); |
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306 DEBUG( "CDpTx2Pn::DoCancel\n" ) |
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307 |
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308 if ( iRequestActive ) |
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309 { |
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310 // do the required signaling |
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311 iRequestActive = EFalse; |
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312 TRequestStatus* s = &iStatus; |
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313 User::RequestComplete( s, KErrCancel ); |
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314 } |
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315 //no else |
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316 } |
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317 |
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318 // --------------------------------------------------------- |
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319 // CDpTx2Pn::WritePn |
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320 // Writes data to Isc Api. |
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321 // --------------------------------------------------------- |
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322 // |
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323 TInt CDpTx2Pn::WritePn() |
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324 { |
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325 OstTrace0( TRACE_NORMAL, CDPTX2PN_WRITEPN, "CDpTx2Pn::WritePn" ); |
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326 OstTrace1( TRACE_NORMAL, DUP1_CDPTX2PN_WRITEPN, "CDpTx2Pn:: Port: %u", iDataPort.PortUnit() ); |
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327 |
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328 LOGM1("CDpTx2Pn::WritePn - Port %d", iDataPort.PortUnit() ); |
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329 |
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330 TInt len( 0 ); |
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331 TInt ret( KErrNone ); |
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332 |
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333 // check pipe is enabled |
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334 if ( iPifDcs.PipeState() != CDpPif::EDpPipeEnabled ) |
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335 { |
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336 ret = KErrNotReady; |
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337 } |
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338 else if ( iBreakPending ) |
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339 { |
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340 // length is as much as there is data before break, |
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341 // but maximum KDpMaximumTxReservationSize |
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342 if ( iBreakBytes > iBufferTx.MaxReservationSize() ) |
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343 { |
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344 len = iBufferTx.MaxReservationSize(); |
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345 } |
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346 else |
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347 { |
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348 len = iBreakBytes; |
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349 } |
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350 } |
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351 else |
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352 { |
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353 // length is as much as there is but maximum KDpMaximumTxReservationSize |
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354 if ( iBufferTx.UsedBytes() > iBufferTx.MaxReservationSize() ) |
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355 { |
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356 len = iBufferTx.MaxReservationSize(); |
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357 } |
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358 else |
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359 { |
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360 len = iBufferTx.UsedBytes(); |
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361 } |
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362 } |
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363 |
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364 // Length can be 0, if Tx buffer has been flushed. |
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365 // Try to recover with KErrNotReady error. |
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366 if ( ( 0 == len ) && ( KErrNone == ret ) ) |
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367 { |
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368 ret = KErrNotReady; |
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369 } |
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370 else if ( KErrNone == ret ) |
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371 { |
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372 LOG(" CDpTx2Pn::WritePn, Tx element reservation"); |
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373 OstTrace0( TRACE_NORMAL, DUP2_CDPTX2PN_WRITEPN, "CDpTx2Pn:: Tx element reservation" ); |
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374 |
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375 // try reserve read element, descriptor set to iTx, |
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376 // possible tail into iTxTail |
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377 TInt result( iBufferTx.ReadElement().Reserve( len, iTx, iTxTail ) ); |
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378 |
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379 ret = HandleReturnValue( result ); |
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380 } |
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381 //no else |
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382 |
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383 return ret; |
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384 } |
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385 |
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386 // --------------------------------------------------------- |
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387 // CDpTx2Pn::IsFlowCtrlOn |
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388 // Is flow control on between DP->DCS. Returns also ETrue, |
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389 // when pipe is not enabled. |
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390 // --------------------------------------------------------- |
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391 // |
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392 TBool CDpTx2Pn::IsFlowCtrlOn() |
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393 { |
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394 OstTrace0( TRACE_NORMAL, CDPTX2PN_ISFLOWCTRLON, "CDpTx2Pn::IsFlowCtrlOn" ); |
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395 LOGM(" CDpTx2Pn::IsFlowCtrlOn"); |
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396 |
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397 TBool ret( EFalse ); |
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398 |
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399 if ( EFlowControlOn == iFlowCtrl.FlowCtrlDp2Dcs() || |
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400 CDpPif::EDpPipeEnabled != iPifDcs.PipeState() ) |
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401 { |
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402 ret = ETrue; |
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403 } |
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404 else |
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405 { |
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406 ret = EFalse; |
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407 } |
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408 |
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409 return ret; |
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410 } |
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411 |
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412 // --------------------------------------------------------- |
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413 // CDpTx2Pn::ReleaseNotify |
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414 // This method signals this active object. |
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415 // --------------------------------------------------------- |
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416 // |
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417 void CDpTx2Pn::ReleaseNotify() |
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418 { |
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419 OstTrace0( TRACE_NORMAL, CDPTX2PN_RELEASENOTIFY, "CDpTx2Pn::ReleaseNotify" ); |
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420 LOG(" CDpTx2Pn::ReleaseNotify"); |
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421 DEBUG( "CDpTx2Pn::ReleaseNotify" ) |
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422 |
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423 // signal ourselves |
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424 if ( iRequestActive ) |
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425 { |
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426 iRequestActive = EFalse; |
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427 TRequestStatus* s = &iStatus; |
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428 User::RequestComplete( s, KErrNone ); |
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429 } |
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430 //no else |
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431 } |
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432 |
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433 // --------------------------------------------------------- |
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434 // This method notifies that buffer is flushed. Classes which have access |
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435 // to buffers are derived from this class. Derived class could override |
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436 // this method, otherwise this default method will be used. |
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437 // release this cactive object |
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438 // --------------------------------------------------------- |
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439 // |
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440 void CDpTx2Pn::FlushNotify() |
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441 { |
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442 OstTrace0( TRACE_NORMAL, CDPTX2PN_FLUSHNOTIFY, "CDpTx2Pn::FlushNotify" ); |
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443 LOGM(" CDpTx2Pn::FlushNotify()"); |
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444 |
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445 ReleaseNotify(); |
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446 } |
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447 |
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448 // ----------------------------------------------------------------------------- |
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449 // CDpTx2Pn::Role |
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450 // This method gets the role (reader/writer) of data client. |
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451 // ----------------------------------------------------------------------------- |
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452 // |
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453 TUint8 CDpTx2Pn::Role() |
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454 { |
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455 OstTrace0( TRACE_NORMAL, CDPTX2PN_ROLE, "CDpTx2Pn::Role" ); |
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456 |
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457 return iRole; |
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458 } |
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459 |
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460 // --------------------------------------------------------- |
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461 // CDpTx2Pn::UpDate |
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462 // Called after pipe state change and after flow control |
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463 // state change. |
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464 // --------------------------------------------------------- |
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465 // |
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466 void CDpTx2Pn::UpDate( |
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467 CDpSubject* /*aChangedSubject*/ ) |
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468 { |
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469 OstTrace0( TRACE_NORMAL, CDPTX2PN_UPDATE, "CDpTx2Pn::UpDate" ); |
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470 LOG(" CDpTx2Pn::UpDate"); |
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471 DEBUG( "CDpTx2Pn::UpDate" ) |
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472 |
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473 // if there is data ready signal ourselves |
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474 if ( ( 0 < iBufferTx.UsedBytes() ) && ( !IsFlowCtrlOn() ) ) |
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475 { |
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476 ReleaseNotify(); |
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477 } |
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478 //no else |
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479 } |
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480 |
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481 // --------------------------------------------------------- |
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482 // CDpTx2Pn::SetBreakBytes |
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483 // Set up flag if there is some data to be send before break |
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484 // (this is client->DCS break) |
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485 // --------------------------------------------------------- |
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486 // |
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487 void CDpTx2Pn::SetBreakBytes( |
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488 const TInt aBreakBytes) |
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489 { |
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490 OstTrace0( TRACE_NORMAL, CDPTX2PN_SETBREAKBYTES, "CDpTx2Pn::SetBreakBytes" ); |
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491 LOG(" CDpTx2Pn::SetBreakBytes"); |
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492 DEBUG( "CDpTx2Pn::SetBreakBytes()" ) |
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493 |
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494 iBreakBytes = aBreakBytes; |
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495 // put break pending |
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496 iBreakPending = ETrue; |
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497 } |
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498 |
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499 // --------------------------------------------------------- |
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500 // CDpTx2Pn::CancelBreakBytes |
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501 // Clears pending break bytes. Client may have cancelled |
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502 // it's break request. |
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503 // --------------------------------------------------------- |
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504 // |
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505 void CDpTx2Pn::CancelBreakBytes() |
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506 { |
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507 OstTrace0( TRACE_NORMAL, CDPTX2PN_CANCELBREAKBYTES, "CDpTx2Pn::CancelBreakBytes" ); |
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508 LOG(" CDpTx2Pn::CancelBreakBytes"); |
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509 DEBUG( "CDpTx2Pn::CancelBreakBytes()" ) |
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510 |
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511 iBreakBytes = 0; |
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512 iBreakPending = EFalse; |
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513 } |
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514 |
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515 // --------------------------------------------------------- |
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516 // CDpTx2Pn::SetOutputBufferEmptyNotification |
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517 // Setup flag that we are requested to notify or not the |
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518 // client, when output buffer (TX buffer) empties. |
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519 // --------------------------------------------------------- |
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520 // |
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521 void CDpTx2Pn::SetOutputBufferEmptyNotification( |
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522 const TBool aUsedOrNot ) |
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523 { |
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524 OstTrace0( TRACE_NORMAL, CDPTX2PN_SETOUTPUTBUFFEREMPTYNOTIFICATION, "CDpTx2Pn::SetOutputBufferEmptyNotification" ); |
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525 LOG(" CDpTx2Pn::SetOutputBufferEmptyNotification"); |
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526 DEBUG( "CDpTx2Pn::SetOutputBufferEmptyNotification") |
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527 |
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528 iOutBufIsEmptyNotify = aUsedOrNot; |
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529 } |
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530 |
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531 // --------------------------------------------------------- |
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532 // CDpTx2Pn::PipeSendWithParityAdd |
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533 // This method writes data to Isc Api. In 7-bit data case |
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534 // parity bits are added here using parity handler class. |
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535 // --------------------------------------------------------- |
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536 // |
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537 TInt CDpTx2Pn::PipeSendWithParityAdd( |
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538 TPtr8& aTx ) |
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539 { |
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540 OstTrace0( TRACE_NORMAL, CDPTX2PN_PIPESENDWITHPARITYADD, "CDpTx2Pn::PipeSendWithParityAdd" ); |
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541 OstTrace1( TRACE_NORMAL, DUP1_CDPTX2PN_PIPESENDWITHPARITYADD, "CDpTx2Pn:: Port: %u", iDataPort.PortUnit() ); |
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542 |
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543 LOGM1("CDpTx2Pn::PipeSendWithParityAdd - Port %d", iDataPort.PortUnit() ); |
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544 |
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545 TUint8 pipeHandle( 0 ); |
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546 TInt result( iDataPort.ActivePipeHandle( pipeHandle ) ); |
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547 |
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548 if ( KErrNone == result ) |
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549 { |
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550 if ( EData7 == iDataConfig.DataBits() ) |
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551 { |
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552 // DteParityBitWhen7Mode parameter tells whether parity bit should |
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553 // be carried or not in data mesages in a pipe when DTE interface |
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554 // is in 7-bit mode. |
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555 if ( iDataConfig.DteParityBitWhen7Mode() == PEP_COMM_DATA_WITH_PARITY ) |
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556 { |
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557 // use parity bits |
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558 iParityHandler.AddParityBits( aTx, iDataConfig.Parity() ); |
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559 } |
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560 //no else |
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561 } |
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562 //no else |
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563 |
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564 result = iDataPort.ISAHandle().DataSend( aTx ); |
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565 |
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566 #if defined(_DEBUG) |
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567 if ( KErrNone != result ) |
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568 { |
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569 LOG1("Error Pipe send %d", result ); |
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570 OstTrace1( TRACE_NORMAL, DUP2_CDPTX2PN_PIPESENDWITHPARITYADD, "CDpTx2Pn:: Error Pipe send %d", result ); |
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571 } |
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572 //no else |
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573 #endif |
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574 } |
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575 //no else |
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576 |
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577 return result; |
|
578 } |
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579 |
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580 // --------------------------------------------------------- |
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581 // CDpTx2Pn::HandleReturnValue |
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582 // Handles the reserve methods return value. |
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583 // --------------------------------------------------------- |
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584 // |
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585 TInt CDpTx2Pn::HandleReturnValue( |
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586 const TInt aReturnValue ) |
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587 { |
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588 OstTrace0( TRACE_NORMAL, CDPTX2PN_HANDLERETURNVALUE, "CDpTx2Pn::HandleReturnValue" ); |
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589 OstTrace1( TRACE_NORMAL, DUP1_CDPTX2PN_HANDLERETURNVALUE, "CDpTx2Pn:: Port: %u", iDataPort.PortUnit() ); |
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590 |
|
591 LOGM1("CDpTx2Pn::HandleReturnValue - Port %d", iDataPort.PortUnit() ); |
|
592 |
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593 TInt result( KErrNone ); |
|
594 |
|
595 switch ( aReturnValue ) |
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596 { |
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597 case KErrNone: |
|
598 { |
|
599 // write iTx |
|
600 if ( 0 < iTx.Length() ) |
|
601 { |
|
602 result = PipeSendWithParityAdd( iTx ); |
|
603 } |
|
604 //no else |
|
605 |
|
606 #ifdef _DEBUG |
|
607 LOG1("-- WRITE -- %x", &iDataPort); |
|
608 OstTrace1( TRACE_NORMAL, DUP2_CDPTX2PN_HANDLERETURNVALUE, "CDpTx2Pn:: -- WRITE -- %x", &iDataPort ); |
|
609 |
|
610 if ( 0 < iTx.Length() ) |
|
611 { |
|
612 if ( KErrOverflow != result ) |
|
613 { |
|
614 iTotalSent = iTotalSent + iTx.Length(); |
|
615 } |
|
616 OstTraceExt2( TRACE_NORMAL, DUP3_CDPTX2PN_HANDLERETURNVALUE, "CDpTx2Pn:: Tx len = %d, Total Bytes sent = %d", iTx.Length(), iTotalSent ); |
|
617 OstTraceExt1( TRACE_NORMAL, DUP12_CDPTX2PN_HANDLERETURNVALUE, "CDpTx2Pn:: TX = %s", iTx ); |
|
618 |
|
619 LOG2(" Tx len = %d, Total Bytes sent = %d", |
|
620 iTx.Length(), iTotalSent ); |
|
621 LOGHEX( iTx, ETrue ); |
|
622 } |
|
623 //no else |
|
624 #endif |
|
625 |
|
626 if ( KErrNone == result ) |
|
627 { |
|
628 TInt len( 0 ); |
|
629 |
|
630 // Write iTx OK => Write iTxTail |
|
631 if ( 0 < iTxTail.Length() ) |
|
632 { |
|
633 result = PipeSendWithParityAdd( iTxTail ); |
|
634 } |
|
635 //no else |
|
636 |
|
637 #ifdef _DEBUG |
|
638 if ( 0 < iTxTail.Length() ) |
|
639 { |
|
640 if ( KErrOverflow != result ) |
|
641 { |
|
642 iTotalSent = iTotalSent + iTxTail.Length(); |
|
643 } |
|
644 OstTraceExt2( TRACE_NORMAL, DUP5_CDPTX2PN_HANDLERETURNVALUE, "CDpTx2Pn:: Tx Tail len = %d, Total Bytes sent = %d", iTxTail.Length(), iTotalSent ); |
|
645 OstTraceExt1( TRACE_NORMAL, DUP13_CDPTX2PN_HANDLERETURNVALUE, "CDpTx2Pn:: TX = %s", iTxTail ); |
|
646 |
|
647 LOG2(" Tx Tail len = %d, Total Bytes sent = %d", |
|
648 iTxTail.Length(), iTotalSent ); |
|
649 LOGHEX( iTxTail, ETrue ); |
|
650 } |
|
651 //no else |
|
652 #endif |
|
653 |
|
654 if ( KErrNone == result ) |
|
655 { |
|
656 // Write iTx OK & Write iTxTail OK |
|
657 // => release iTx and iTxTail |
|
658 LOG(" CDpTx2Pn::HandleReturnValue, Tx element release (iTx + iTxTail)"); |
|
659 OstTrace0( TRACE_NORMAL, DUP7_CDPTX2PN_HANDLERETURNVALUE, "CDpTx2Pn:: Tx element release (iTx + iTxTail)" ); |
|
660 len = iTx.Length() + iTxTail.Length(); |
|
661 } |
|
662 else |
|
663 { |
|
664 // Write iTx OK & Write iTxTail FAIL |
|
665 // => release only iTx |
|
666 OstTrace0( TRACE_NORMAL, DUP8_CDPTX2PN_HANDLERETURNVALUE, "CDpTx2Pn:: Tail sending failed" ); |
|
667 OstTrace0( TRACE_NORMAL, DUP9_CDPTX2PN_HANDLERETURNVALUE, "CDpTx2Pn:: Tx element release (iTx)" ); |
|
668 |
|
669 LOG(" CDpTx2Pn::HandleReturnValue, Tail sending failed"); |
|
670 LOG(" CDpTx2Pn::HandleReturnValue, Tx element release (iTx)"); |
|
671 len = iTx.Length(); |
|
672 } |
|
673 |
|
674 // release read element |
|
675 result = iBufferTx.ReadElement().Release( len ); |
|
676 |
|
677 if ( KErrNone == result ) |
|
678 { |
|
679 // reset descriptors |
|
680 iTx.SetLength( 0 ); |
|
681 iTxTail.SetLength( 0 ); |
|
682 |
|
683 if ( iBreakPending ) |
|
684 { |
|
685 iBreakBytes -= len; |
|
686 |
|
687 if ( iBreakBytes == 0 ) |
|
688 { |
|
689 iBreakPending = EFalse; |
|
690 TInt ret = iBreak.SendBreak(); |
|
691 iDataPort.BreakCompleted( ret ); |
|
692 } |
|
693 //no else |
|
694 } |
|
695 //no else |
|
696 } |
|
697 //no else |
|
698 } |
|
699 //no else |
|
700 |
|
701 break; |
|
702 } |
|
703 case KErrNoMemory: |
|
704 { |
|
705 DEBUG( "CDpTx2Pn, waiting..." ) |
|
706 OstTrace0( TRACE_NORMAL, DUP10_CDPTX2PN_HANDLERETURNVALUE, "CDpTx2Pn:: waiting..." ); |
|
707 |
|
708 // do nothing, in RunL we are set active again |
|
709 break; |
|
710 } |
|
711 default: |
|
712 { |
|
713 LOG(" CDpTx2Pn::HandleReturnValue, Element reservation failed"); |
|
714 OstTrace0( TRACE_NORMAL, DUP11_CDPTX2PN_HANDLERETURNVALUE, "CDpTx2Pn:: Element reservation failed" ); |
|
715 |
|
716 // Return the error code. Caller of the WritePn can handel this. |
|
717 result = aReturnValue; |
|
718 } |
|
719 } |
|
720 |
|
721 return result; |
|
722 } |
|
723 |
|
724 //=========================================================== |
|
725 |
|
726 // --------------------------------------------------------- |
|
727 // CDpTx2Pn::CDpTx2PnObserver::Init |
|
728 // This method initializes Tx2Pn observer. |
|
729 // --------------------------------------------------------- |
|
730 // |
|
731 void CDpTx2Pn::CDpTx2PnObserver::Init( |
|
732 CDpTx2Pn* aDpTx2Pn ) |
|
733 { |
|
734 iDpTx2Pn = aDpTx2Pn; |
|
735 } |
|
736 |
|
737 // --------------------------------------------------------- |
|
738 // CDpTx2Pn::CDpTx2PnObserver::UpDate |
|
739 // This method updates Tx2Pn. |
|
740 // --------------------------------------------------------- |
|
741 // |
|
742 void CDpTx2Pn::CDpTx2PnObserver::UpDate( |
|
743 CDpSubject* aChangedSubject ) |
|
744 { |
|
745 LOG(" CDpTx2Pn::CDpTx2PnObserver::UpDate"); |
|
746 |
|
747 if ( iDpTx2Pn ) |
|
748 { |
|
749 iDpTx2Pn->UpDate( aChangedSubject ); |
|
750 } |
|
751 } |
|
752 |
|
753 // ================= OTHER EXPORTED FUNCTIONS ============== |
|
754 // none |
|
755 |
|
756 // End of File |