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1 // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // e32test\dma\t_dma.cpp |
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15 // Overview: |
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16 // Test the DMA channel functionality. |
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17 // API Information: |
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18 // RBusLogicalChannel, DLogicalChannelBase, DLogicalDevice |
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19 // Details: |
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20 // - Load the DMA LDD, create a critical section, an active scheduler and |
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21 // a CPeriodic object. |
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22 // - Test one shot single buffer transfers: test simple transfer, request |
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23 // reconfiguration and cancelling. Verify results are as expected. |
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24 // - Test one shot double buffer transfers: test simple transfer, request |
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25 // reconfiguration and cancelling. Verify results are as expected. |
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26 // - Test streaming single buffer transfers: test simple transfer and |
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27 // cancelling. Test that framework behaves correctly if one or more DMA |
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28 // interrupts are missed. Verify results are as expected. |
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29 // - Test streaming double buffer transfers: test simple transfer and |
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30 // cancelling. Test that framework behaves correctly if one or more DMA |
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31 // interrupts are missed. Verify results are as expected. |
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32 // - Test streaming scatter/gather transfers: test simple transfer and |
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33 // cancelling. Test that framework behaves correctly if one or more DMA |
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34 // interrupts are missed. Verify results are as expected. |
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35 // Platforms/Drives/Compatibility: |
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36 // Hardware (Automatic). |
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37 // Assumptions/Requirement/Pre-requisites: |
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38 // Failures and causes: |
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39 // Base Port information: |
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40 // |
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41 // |
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42 |
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43 #define __E32TEST_EXTENSION__ |
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44 #include <e32test.h> |
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45 #include "d_dma.h" |
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46 #include <e32debug.h> |
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47 #include <e32svr.h> |
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48 #include <e32def.h> |
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49 #include <e32def_private.h> |
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50 #include "u32std.h" |
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51 |
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52 #ifdef __DMASIM__ |
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53 RTest test(_L("T_DMASIM")); |
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54 #else |
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55 RTest test(_L("T_DMA")); |
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56 #endif |
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57 |
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58 ////////////////////////////////////////////////////////////////////////////// |
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59 // Mini-framework for running tests either in a single thread or in |
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60 // several concurrent ones. |
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61 |
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62 RTestDma::TInfo Info; |
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63 TBool JitEnabled; |
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64 RCriticalSection TheCriticalSection; // protect following variables |
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65 TInt ThreadCount; // decremented when tester thread dies |
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66 CPeriodic* Bipper; // display dots during tests to detect lock-ups |
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67 |
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68 // Test macro used inside tester threads |
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69 _LIT(KTestFailure, "XTEST"); |
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70 static void TestPanic(TInt aLine, TUint32 a1, TUint32 a2, TUint32 a3) |
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71 { |
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72 RDebug::Printf("Line %d test failed a1=%08x a2=%08x a3=%08x", aLine, a1, a2, a3); |
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73 RThread().Panic(KTestFailure, aLine); |
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74 } |
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75 #define XTEST(e) if (!(e)) TestPanic(__LINE__, 0, 0, 0) |
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76 #define XTEST1(e,a1) if (!(e)) TestPanic(__LINE__, (a1), 0, 0) |
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77 #define XTEST2(e,a1,a2) if (!(e)) TestPanic(__LINE__, (a1), (a2), 0) |
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78 #define XTEST3(e,a1,a2,a3) if (!(e)) TestPanic(__LINE__, (a1), (a2), (a3)) |
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79 |
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80 |
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81 /** |
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82 Specifies a DMA test |
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83 @note Have not inherited from CBase so that implicit copy ctors are used |
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84 */ |
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85 class CTest |
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86 { |
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87 public: |
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88 typedef void (*TTestFunction)(RTestDma aChannel, TInt aMaxFragment, TInt aFragmentSize); |
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89 |
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90 CTest(TTestFunction aFn, TInt aMaxIter) |
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91 :iTestFn(aFn), iChannelId(0), iMaxIter(aMaxIter) |
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92 {} |
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93 |
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94 virtual ~CTest() |
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95 {} |
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96 |
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97 TInt RunTest(); |
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98 |
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99 virtual TBool OpenChannel(TInt aDesCount, TInt aMaxFragmentSize=0); |
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100 |
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101 virtual void AnnounceTest(TDes& aDes) |
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102 {aDes.AppendFormat(_L("Channel Id %d, iMaxIter %d"), iChannelId, iMaxIter);} |
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103 virtual void ReportState(TDes& aDes) |
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104 {aDes.AppendFormat(_L("Channel Id %d, iCurIter %d"), iChannelId, iCurIter);} |
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105 |
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106 |
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107 void SetChannelId(TUint32 aChannelId) |
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108 {iChannelId = aChannelId;} |
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109 |
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110 TInt MaxIter() const {return iMaxIter;} |
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111 TInt CurIter() const {return iCurIter;} |
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112 |
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113 /** |
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114 @return A copy of this test |
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115 */ |
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116 virtual CTest* Clone() const =0; |
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117 |
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118 protected: |
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119 TInt virtual DoRunTest() =0; |
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120 |
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121 const TTestFunction iTestFn; |
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122 TUint32 iChannelId; |
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123 const TInt iMaxIter; |
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124 TInt iCurIter; |
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125 RTestDma iChannel; |
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126 }; |
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127 |
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128 /** |
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129 Specifies a DMA test where the maximum fragmentation is |
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130 explicitly limited. This tests that requests are split |
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131 in to the number of fragments expected. |
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132 |
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133 This test also requires that physically contiguous buffers |
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134 are used. For this reason the product of iMaxFragment and |
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135 iMaxFragmentSize should be kept small |
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136 */ |
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137 class CFragmentationTest : public CTest |
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138 { |
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139 public: |
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140 CFragmentationTest(TTestFunction aFn, TInt aMaxIter, TInt aMaxFragment, TInt aMaxFragmentSize) |
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141 : CTest(aFn, aMaxIter), iMaxFragment(aMaxFragment), iMaxFragmentSize(aMaxFragmentSize), iCurFragment(0) |
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142 {} |
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143 |
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144 TInt virtual DoRunTest(); |
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145 |
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146 virtual void AnnounceTest(TDes& aDes) |
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147 { |
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148 aDes.AppendFormat(_L("CFragmentationTest: Frag count = [1..%d], Max Frag Size = 0x%08x bytes: "), iMaxFragment, iMaxFragmentSize); |
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149 CTest::AnnounceTest(aDes); |
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150 } |
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151 |
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152 virtual void ReportState(TDes& aDes) |
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153 { |
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154 aDes.AppendFormat(_L("CFragmentationTest: Current Fragment %d: "), iCurFragment); |
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155 CTest::ReportState(aDes); |
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156 } |
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157 |
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158 CTest* Clone() const |
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159 {return new CFragmentationTest(*this);} |
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160 |
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161 private: |
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162 const TInt iMaxFragment; |
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163 TInt iMaxFragmentSize; |
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164 TInt iCurFragment; |
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165 }; |
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166 |
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167 /** |
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168 Specifies a DMA test where the maximum fragment size is |
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169 not limited - and we do not care how many fragments are |
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170 used |
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171 |
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172 - This checks that transfers work correctly with the DMAC's |
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173 default fragment size |
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174 */ |
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175 class CDefaultFragTest : public CTest |
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176 { |
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177 public: |
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178 CDefaultFragTest(TTestFunction aFn, TInt aMaxIter, TUint aTotalTransferSize) |
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179 : CTest(aFn, aMaxIter), iTotalTransferSize(aTotalTransferSize) |
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180 {} |
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181 |
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182 TInt virtual DoRunTest(); |
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183 |
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184 virtual void AnnounceTest(TDes& aDes) |
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185 { |
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186 aDes.AppendFormat(_L("CDefaultFragTest: Transfer = 0x%08x bytes: "), iTotalTransferSize); |
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187 CTest::AnnounceTest(aDes); |
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188 } |
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189 |
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190 CTest* Clone() const |
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191 {return new CDefaultFragTest(*this);} |
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192 |
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193 const TInt iTotalTransferSize; |
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194 }; |
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195 |
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196 |
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197 // |
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198 // Active object used to create a tester thread, log on to it and |
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199 // interpret its exit status. |
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200 // |
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201 class CTesterThread : public CActive |
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202 { |
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203 public: |
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204 CTesterThread(TInt aIdx, CTest* aTest); |
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205 ~CTesterThread() |
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206 { |
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207 delete iTest; |
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208 } |
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209 private: |
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210 static TInt ThreadFunction(TAny* aSelf); |
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211 TInt StartThread(); |
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212 // from CActive |
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213 virtual void DoCancel(); |
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214 virtual void RunL(); |
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215 private: |
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216 RThread iThread; |
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217 CTest* iTest; |
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218 }; |
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219 |
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220 |
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221 /** |
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222 Run the test for iMaxIter iterations |
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223 */ |
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224 TInt CTest::RunTest() |
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225 { |
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226 TInt r = KErrNone; |
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227 for (iCurIter=0; iCurIter<iMaxIter; ++iCurIter) |
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228 { |
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229 r = DoRunTest(); |
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230 if(KErrNone != r) |
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231 break; |
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232 } |
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233 return r; |
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234 } |
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235 |
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236 /** |
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237 Open iChannel |
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238 |
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239 @pre iChannel is not open |
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240 @return |
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241 - KErrNotSupported Channel does not exist on DMAC |
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242 - KErrNone Success |
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243 - KErrInUse |
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244 */ |
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245 TInt CTest::OpenChannel(TInt aDesCount, TInt aMaxFragmentSize) |
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246 { |
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247 ASSERT(!iChannel.Handle()); |
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248 const TInt r = iChannel.Open(iChannelId, aDesCount, aMaxFragmentSize); |
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249 if (r == KErrNotSupported) |
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250 return r; |
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251 XTEST1(KErrNone == r || KErrInUse == r, r); |
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252 |
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253 if(KErrInUse == r) |
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254 { |
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255 // Channel is in use. |
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256 RDebug::Printf("\nDMA Channel %d is in use",iChannelId); |
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257 if(0 == iCurIter) |
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258 { |
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259 // Terminate thread by returning this error code KErrInUse. |
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260 return r; |
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261 } |
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262 else |
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263 { |
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264 #ifdef __WINS__ |
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265 #pragma warning( disable : 4127 ) // warning C4127: conditional expression is constant |
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266 #endif // __WINS__ |
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267 XTEST1(EFalse, iCurIter); |
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268 #ifdef __WINS__ |
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269 #pragma warning( default : 4127 ) // warning C4127: conditional expression is constant |
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270 #endif // __WINS__ |
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271 } |
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272 } |
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273 return r; |
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274 } |
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275 |
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276 |
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277 |
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278 // Spawn thread. Will auto-delete when thread exits. |
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279 CTesterThread::CTesterThread(TInt aIdx, CTest* aTest) |
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280 : CActive(EPriorityStandard), iTest(aTest) |
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281 { |
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282 CActiveScheduler::Add(this); |
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283 TBuf<16> name; |
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284 name = _L("TESTER-"); |
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285 name.AppendNum(aIdx); |
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286 test(iThread.Create(name, ThreadFunction, 0x1000, NULL, this) == KErrNone); |
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287 iThread.SetPriority(EPriorityLess); |
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288 iThread.Logon(iStatus); |
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289 SetActive(); |
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290 iThread.Resume(); |
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291 } |
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292 |
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293 |
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294 TInt CTesterThread::ThreadFunction(TAny* aSelf) |
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295 { |
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296 CTesterThread* self = (CTesterThread*)aSelf; |
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297 return self->StartThread(); |
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298 } |
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299 |
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300 TInt CTesterThread::StartThread() |
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301 { |
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302 return iTest->RunTest(); |
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303 } |
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304 |
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305 |
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306 |
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307 TInt CFragmentationTest::DoRunTest() |
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308 { |
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309 // In case iMaxFragmentSize was larger than suppported (we need to know what fragment |
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310 // size will actually be used) |
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311 iMaxFragmentSize = Min(iMaxFragmentSize, Info.iMaxTransferSize); |
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312 |
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313 // Open channel with enough descriptors for 3 open DMA |
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314 // requests (see TestStreaming). |
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315 TInt r = OpenChannel(3* iMaxFragment, iMaxFragmentSize); |
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316 if(r != KErrNone) |
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317 return r; |
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318 |
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319 //we are controlling fragment size, so we know how |
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320 //many to expect |
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321 for (iCurFragment=1; iCurFragment<=iMaxFragment; iCurFragment*=2) |
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322 { |
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323 const TInt size = iCurFragment * ( iMaxFragmentSize & ~Info.iMemAlignMask); |
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324 iTestFn(iChannel, iCurFragment, size); |
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325 } |
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326 iChannel.Close(); |
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327 return KErrNone; |
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328 } |
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329 |
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330 TInt CDefaultFragTest::DoRunTest() |
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331 { |
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332 // +1 so we don't underestimate maxFragount for inexact division |
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333 const TUint maxFragCount = (iTotalTransferSize / Info.iMaxTransferSize) +1; |
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334 |
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335 // Open channel with enough descriptors for 3 open DMA |
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336 // requests (see TestStreaming). |
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337 const TUint descriptorCount = 3 * maxFragCount; |
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338 |
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339 TInt r = OpenChannel(descriptorCount); |
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340 if(r != KErrNone) |
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341 return r; |
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342 |
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343 iTestFn(iChannel, 0, iTotalTransferSize); |
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344 |
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345 iChannel.Close(); |
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346 return KErrNone; |
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347 } |
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348 |
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349 |
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350 // Called when thread completed. |
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351 void CTesterThread::RunL() |
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352 { |
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353 TExitType et = iThread.ExitType(); |
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354 TInt er = iThread.ExitReason(); |
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355 TExitCategoryName ec = iThread.ExitCategory(); |
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356 TName name = iThread.Name(); |
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357 CLOSE_AND_WAIT(iThread); |
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358 |
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359 switch (et) |
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360 { |
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361 case EExitKill: |
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362 // nothing to do |
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363 break; |
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364 case EExitPanic: |
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365 { |
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366 User::SetJustInTime(JitEnabled); |
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367 TBuf<128> buffer; |
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368 iTest->ReportState(buffer); |
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369 test.Printf(_L("Tester Thread Panic: %S: Test: %S\n"), |
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370 &name, &buffer); |
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371 if (ec.Match(KTestFailure) == 0) |
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372 test.Panic(_L("Test failure line %d"), er); |
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373 else |
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374 test.Panic(_L("Unexpected panic: %S-%d"), &ec, er); |
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375 break; |
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376 } |
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377 default: |
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378 test.Panic(_L("Invalid thread exit type")); |
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379 } |
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380 |
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381 TheCriticalSection.Wait(); |
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382 if (--ThreadCount == 0) |
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383 { |
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384 Bipper->Cancel(); |
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385 test.Console()->Printf(_L("\n")); |
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386 CActiveScheduler::Stop(); |
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387 } |
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388 TheCriticalSection.Signal(); |
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389 |
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390 // We commit suicide as the alternative (being deleted by |
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391 // RunTest()) implies keeping a list of all instances in |
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392 // RunTest(). |
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393 delete this; |
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394 } |
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395 |
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396 |
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397 void CTesterThread::DoCancel() |
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398 { |
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399 test.Panic(_L("CTesterThread::DoCancel called")); |
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400 } |
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401 |
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402 |
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403 static TInt Bip(TAny*) |
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404 { |
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405 test.Console()->Printf(_L(".")); |
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406 return 0; |
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407 } |
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408 |
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409 |
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410 // Execute provided test object in one or more tester threads. |
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411 void RunTest(TUint32 aChannelIds[], TInt aMaxThread, CTest* aTest) |
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412 { |
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413 test_NotNull(aTest); |
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414 |
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415 if (aMaxThread == 0) |
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416 { |
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417 delete aTest; |
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418 test.Printf(_L("transfer mode not supported - skipped\n")); |
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419 return; |
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420 } |
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421 |
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422 test.Printf(_L("Using %d thread(s)\n"), aMaxThread); |
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423 |
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424 // We don't want JIT debugging here because the tester threads may panic |
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425 JitEnabled = User::JustInTime(); |
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426 User::SetJustInTime(EFalse); |
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427 |
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428 // must be set before spawning threads to avoid premature active scheduler stop |
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429 ThreadCount = aMaxThread; |
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430 |
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431 TBuf<128> buffer; |
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432 for (TInt i=0; i<aMaxThread; ++i) |
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433 { |
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434 //each CTesterThread needs its own CTest object |
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435 CTest* dmaTest = aTest->Clone(); |
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436 test_NotNull(dmaTest); |
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437 |
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438 dmaTest->SetChannelId(aChannelIds[i]); |
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439 |
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440 buffer.Zero(); |
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441 dmaTest->AnnounceTest(buffer); |
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442 test.Printf(_L("Thread %d: %S\n"), i, &buffer); |
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443 |
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444 test(new CTesterThread(i, dmaTest) != NULL); |
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445 dmaTest = NULL; //ownership transferred to CTesterThread |
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446 } |
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447 //the orginal isn't needed |
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448 delete aTest; |
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449 aTest = NULL; |
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450 |
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451 const TTimeIntervalMicroSeconds32 KPeriod = 1000000; // 1s |
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452 Bipper->Start(KPeriod, KPeriod, Bip); |
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453 |
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454 CActiveScheduler::Start(); |
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455 |
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456 User::SetJustInTime(JitEnabled); |
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457 } |
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458 |
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459 |
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460 inline void RunSbTest(TInt aMaxThread, CTest* aTest) |
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461 { |
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462 RunTest(Info.iSbChannels, Min(aMaxThread,Info.iMaxSbChannels), aTest); |
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463 } |
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464 |
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465 inline void RunDbTest(TInt aMaxThread, CTest* aTest) |
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466 { |
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467 RunTest(Info.iDbChannels, Min(aMaxThread,Info.iMaxDbChannels), aTest); |
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468 } |
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469 |
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470 inline void RunSgTest(TInt aMaxThread, CTest* aTest) |
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471 { |
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472 RunTest(Info.iSgChannels, Min(aMaxThread,Info.iMaxSgChannels), aTest); |
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473 } |
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474 ////////////////////////////////////////////////////////////////////////////// |
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475 |
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476 static void GetChannelInfo() |
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477 { |
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478 RTestDma channel; |
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479 test(channel.GetInfo(Info) == KErrNone); |
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480 test(Info.iMaxSbChannels>0 || Info.iMaxDbChannels>0 || Info.iMaxSgChannels>0); |
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481 } |
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482 |
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483 |
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484 static void TestOneShot(RTestDma aChannel, TInt aFragmentCount, TInt aSize) |
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485 { |
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486 const TInt KRequest = 0; |
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487 const TInt KSrcBuf = 0; |
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488 const TInt KDestBuf1 = 1; |
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489 const TInt KDestBuf2 = 2; |
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490 |
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491 TInt r = aChannel.AllocBuffer(KSrcBuf, aSize); |
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492 XTEST2(r == KErrNone, r, aSize); |
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493 aChannel.FillBuffer(KSrcBuf, 'A'); |
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494 r = aChannel.AllocBuffer(KDestBuf1, aSize); |
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495 XTEST2(r == KErrNone, r, aSize); |
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496 aChannel.FillBuffer(KDestBuf1, '\0'); |
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497 r = aChannel.AllocBuffer(KDestBuf2, aSize); |
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498 XTEST2(r == KErrNone, r, aSize); |
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499 aChannel.FillBuffer(KDestBuf2, '\0'); |
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500 |
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501 // Test simple transfer |
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502 TRequestStatus rs; |
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503 r = aChannel.Fragment(KRequest, KSrcBuf, KDestBuf1, aSize, &rs); |
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504 XTEST2(r == KErrNone, r, aSize); |
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505 test(aChannel.FragmentCheck(KRequest, aFragmentCount)); |
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506 r = aChannel.Execute(_L8("Q0")); |
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507 XTEST1(r == KErrNone, r); |
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508 User::WaitForRequest(rs); |
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509 XTEST1(rs == KErrNone, rs.Int()); |
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510 XTEST(aChannel.CheckBuffer(KDestBuf1, 'A')); |
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511 |
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512 // Test request reconfiguration. |
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513 aChannel.FillBuffer(KDestBuf1, '\0'); |
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514 r = aChannel.Fragment(KRequest, KSrcBuf, KDestBuf2, aSize, &rs); |
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515 XTEST2(r == KErrNone, r, aSize); |
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516 test(aChannel.FragmentCheck(KRequest, aFragmentCount)); |
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517 r = aChannel.Execute(_L8("Q0")); |
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518 XTEST1(r == KErrNone, r); |
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519 User::WaitForRequest(rs); |
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520 XTEST1(rs == KErrNone, rs.Int()); |
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521 XTEST(aChannel.CheckBuffer(KDestBuf1, '\0')); // previous dest unchanged? |
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522 XTEST(aChannel.CheckBuffer(KDestBuf2, 'A')); |
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523 |
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524 // Test cancelling |
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525 aChannel.FillBuffer(KDestBuf1, '\0'); |
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526 r = aChannel.Fragment(KRequest, KSrcBuf, KDestBuf1, aSize); |
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527 XTEST2(r == KErrNone, r, aSize); |
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528 test(aChannel.FragmentCheck(KRequest, aFragmentCount)); |
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529 r = aChannel.Execute(_L8("Q0C")); |
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530 XTEST1(r == KErrNone, r); |
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531 // Part of the destination buffer should be unchanged if the |
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532 // cancel occured before the transfer completed. |
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533 #ifdef __DMASIM__ |
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534 // At least part of the last destination buffer should be |
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535 // unchanged if cancel occured before the transfer completed. |
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536 // Assert only on WINS as real DMACs are too fast. |
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537 XTEST(! aChannel.CheckBuffer(KDestBuf2, 'C')); |
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538 #endif |
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539 |
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540 // Perform another transfer to ensure cancel operation let the |
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541 // framework in a consistent state. |
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542 aChannel.FillBuffer(KDestBuf1, '\0'); |
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543 r = aChannel.Fragment(KRequest, KSrcBuf, KDestBuf1, aSize, &rs); |
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544 XTEST2(r == KErrNone, r, aSize); |
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545 test(aChannel.FragmentCheck(KRequest, aFragmentCount)); |
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546 r = aChannel.Execute(_L8("Q0")); |
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547 XTEST1(r == KErrNone, r); |
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548 User::WaitForRequest(rs); |
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549 XTEST1(rs == KErrNone, rs.Int()); |
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550 XTEST(aChannel.CheckBuffer(KDestBuf1, 'A')); |
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551 |
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552 // |
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553 // Test failure if the underlying DMA kernel extension allows it. |
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554 // |
|
555 // As long as only "CancelAllFragments" is supported, it's okay to |
|
556 // always fail on the first fragment. |
|
557 // |
|
558 |
|
559 if (aChannel.FailNext(1) == KErrNone) |
|
560 { |
|
561 aChannel.FillBuffer(KDestBuf1, '\0'); |
|
562 r = aChannel.Fragment(KRequest, KSrcBuf, KDestBuf1, aSize, &rs); |
|
563 XTEST2(r == KErrNone, r, aSize); |
|
564 test(aChannel.FragmentCheck(KRequest, aFragmentCount)); |
|
565 r = aChannel.Execute(_L8("Q0")); |
|
566 XTEST1(r == KErrNone, r); |
|
567 User::WaitForRequest(rs); |
|
568 XTEST1(rs != KErrNone, rs.Int()); |
|
569 XTEST(! aChannel.CheckBuffer(KDestBuf1, 'A')); |
|
570 r = aChannel.Execute(_L8("C")); |
|
571 XTEST1(r == KErrNone, r); |
|
572 |
|
573 // Perform another transfer to ensure we are still in a |
|
574 // consistent state. |
|
575 aChannel.FillBuffer(KDestBuf1, '\0'); |
|
576 r = aChannel.Fragment(KRequest, KSrcBuf, KDestBuf1, aSize, &rs); |
|
577 XTEST2(r == KErrNone, r, aSize); |
|
578 test(aChannel.FragmentCheck(KRequest, aFragmentCount)); |
|
579 r = aChannel.Execute(_L8("Q0")); |
|
580 XTEST1(r == KErrNone, r); |
|
581 User::WaitForRequest(rs); |
|
582 XTEST1(rs == KErrNone, rs.Int()); |
|
583 XTEST(aChannel.CheckBuffer(KDestBuf1, 'A')); |
|
584 } |
|
585 |
|
586 aChannel.FreeAllBuffers(); |
|
587 } |
|
588 |
|
589 |
|
590 static void TestStreaming(RTestDma aChannel, TInt aFragmentCount, TInt aSize) |
|
591 { |
|
592 const TInt KRequest0 = 0; |
|
593 const TInt KRequest1 = 1; |
|
594 const TInt KRequest2 = 2; |
|
595 const TInt KSrcBuf0 = 0; |
|
596 const TInt KSrcBuf1 = 1; |
|
597 const TInt KSrcBuf2 = 2; |
|
598 const TInt KDestBuf0 = 3; |
|
599 const TInt KDestBuf1 = 4; |
|
600 const TInt KDestBuf2 = 5; |
|
601 |
|
602 // |
|
603 // Allocate and initialise source buffers |
|
604 // |
|
605 |
|
606 TInt r = aChannel.AllocBuffer(KSrcBuf0, aSize); |
|
607 XTEST2(r == KErrNone, r, aSize); |
|
608 aChannel.FillBuffer(KSrcBuf0, 'A'); |
|
609 |
|
610 r = aChannel.AllocBuffer(KSrcBuf1, aSize); |
|
611 XTEST2(r == KErrNone, r, aSize); |
|
612 aChannel.FillBuffer(KSrcBuf1, 'B'); |
|
613 |
|
614 r = aChannel.AllocBuffer(KSrcBuf2, aSize); |
|
615 XTEST2(r == KErrNone, r, aSize); |
|
616 aChannel.FillBuffer(KSrcBuf2, 'C'); |
|
617 |
|
618 // |
|
619 // Allocate destination buffers |
|
620 // |
|
621 |
|
622 r = aChannel.AllocBuffer(KDestBuf0, aSize); |
|
623 XTEST2(r == KErrNone, r, aSize); |
|
624 r = aChannel.AllocBuffer(KDestBuf1, aSize); |
|
625 XTEST2(r == KErrNone, r, aSize); |
|
626 r = aChannel.AllocBuffer(KDestBuf2, aSize); |
|
627 XTEST2(r == KErrNone, r, aSize); |
|
628 |
|
629 // |
|
630 // Test simple transfer. |
|
631 // (no need to test for request reconfiguration afterwards because |
|
632 // this was exercised in the one-shot test case) |
|
633 // |
|
634 |
|
635 TRequestStatus rs0; |
|
636 r = aChannel.Fragment(KRequest0, KSrcBuf0, KDestBuf0, aSize, &rs0); |
|
637 XTEST2(r == KErrNone, r, aSize); |
|
638 test(aChannel.FragmentCheck(KRequest0, aFragmentCount)); |
|
639 TRequestStatus rs1; |
|
640 r = aChannel.Fragment(KRequest1, KSrcBuf1, KDestBuf1, aSize, &rs1); |
|
641 XTEST2(r == KErrNone, r, aSize); |
|
642 test(aChannel.FragmentCheck(KRequest1, aFragmentCount)); |
|
643 TRequestStatus rs2; |
|
644 r = aChannel.Fragment(KRequest2, KSrcBuf2, KDestBuf2, aSize, &rs2); |
|
645 XTEST2(r == KErrNone, r, aSize); |
|
646 test(aChannel.FragmentCheck(KRequest2, aFragmentCount)); |
|
647 |
|
648 r = aChannel.Execute(_L8("Q0Q1Q2")); |
|
649 XTEST1(r == KErrNone, r); |
|
650 User::WaitForRequest(rs0); |
|
651 XTEST1(rs0 == KErrNone, rs0.Int()); |
|
652 XTEST(aChannel.CheckBuffer(KDestBuf0, 'A')); |
|
653 User::WaitForRequest(rs1); |
|
654 XTEST1(rs1 == KErrNone, rs1.Int()); |
|
655 XTEST(aChannel.CheckBuffer(KDestBuf1, 'B')); |
|
656 User::WaitForRequest(rs2); |
|
657 XTEST1(rs2 == KErrNone, rs2.Int()); |
|
658 XTEST(aChannel.CheckBuffer(KDestBuf2, 'C')); |
|
659 |
|
660 // |
|
661 // Test cancel |
|
662 // |
|
663 |
|
664 aChannel.FillBuffer(KDestBuf0, '\0'); |
|
665 aChannel.FillBuffer(KDestBuf1, '\0'); |
|
666 aChannel.FillBuffer(KDestBuf2, '\0'); |
|
667 |
|
668 r = aChannel.Fragment(KRequest0, KSrcBuf0, KDestBuf0, aSize); |
|
669 XTEST2(r == KErrNone, r, aSize); |
|
670 test(aChannel.FragmentCheck(KRequest0, aFragmentCount)); |
|
671 r = aChannel.Fragment(KRequest1, KSrcBuf1, KDestBuf1, aSize); |
|
672 XTEST2(r == KErrNone, r, aSize); |
|
673 test(aChannel.FragmentCheck(KRequest1, aFragmentCount)); |
|
674 r = aChannel.Fragment(KRequest2, KSrcBuf2, KDestBuf2, aSize); |
|
675 XTEST2(r == KErrNone, r, aSize); |
|
676 test(aChannel.FragmentCheck(KRequest2, aFragmentCount)); |
|
677 |
|
678 r = aChannel.Execute(_L8("Q0Q1Q2C")); |
|
679 XTEST1(r == KErrNone, r); |
|
680 #ifdef __DMASIM__ |
|
681 // At least part of the last destination buffer should be |
|
682 // unchanged if cancel occured before the transfer completed. |
|
683 // Assert only on WINS as real DMACs are too fast. |
|
684 XTEST(! aChannel.CheckBuffer(KDestBuf2, 'C')); |
|
685 #endif |
|
686 |
|
687 // |
|
688 // Perform another transfer to ensure cancel operation let the |
|
689 // framework in a consistent state. |
|
690 // |
|
691 |
|
692 aChannel.FillBuffer(KDestBuf0, '\0'); |
|
693 aChannel.FillBuffer(KDestBuf1, '\0'); |
|
694 aChannel.FillBuffer(KDestBuf2, '\0'); |
|
695 // Reconfigure last request to enable transfer completion notification |
|
696 r = aChannel.Fragment(KRequest2, KSrcBuf2, KDestBuf2, aSize, &rs2); |
|
697 XTEST2(r == KErrNone, r, aSize); |
|
698 test(aChannel.FragmentCheck(KRequest2, aFragmentCount)); |
|
699 r = aChannel.Execute(_L8("Q0Q1Q2")); |
|
700 XTEST1(r == KErrNone, r); |
|
701 User::WaitForRequest(rs2); |
|
702 XTEST1(rs2 == KErrNone, rs2.Int()); |
|
703 XTEST(aChannel.CheckBuffer(KDestBuf0, 'A')); |
|
704 XTEST(aChannel.CheckBuffer(KDestBuf1, 'B')); |
|
705 XTEST(aChannel.CheckBuffer(KDestBuf2, 'C')); |
|
706 |
|
707 // |
|
708 // Test for proper implementation of UnlinkHwDes() in the PSL. |
|
709 // |
|
710 |
|
711 aChannel.FillBuffer(KDestBuf0, '\0'); |
|
712 aChannel.FillBuffer(KDestBuf1, '\0'); |
|
713 aChannel.FillBuffer(KDestBuf2, '\0'); |
|
714 // Reconfigure last request to enable transfer completion notification |
|
715 r = aChannel.Fragment(KRequest2, KSrcBuf2, KDestBuf2, aSize, &rs2); |
|
716 XTEST2(r == KErrNone, r, aSize); |
|
717 test(aChannel.FragmentCheck(KRequest2, aFragmentCount)); |
|
718 // Queue first request (Q0) |
|
719 r = aChannel.Execute(_L8("Q0")); |
|
720 // Wait a second, so next request will be queued on its own |
|
721 // (instead of being appended to the previous one) |
|
722 User::After(1000000); |
|
723 // Queue third request (Q2) |
|
724 r = aChannel.Execute(_L8("Q2")); |
|
725 XTEST1(r == KErrNone, r); |
|
726 User::WaitForRequest(rs2); |
|
727 XTEST1(rs2 == KErrNone, rs2.Int()); |
|
728 XTEST(aChannel.CheckBuffer(KDestBuf0, 'A')); |
|
729 // KDestBuf1 should have been left untouched! |
|
730 // If we find all B's in KDestBuf1, that means the last descriptor of the |
|
731 // first request (Q0) wasn't properly unlinked and still points to the Q1 |
|
732 // descriptor chain from the previous run. |
|
733 XTEST(aChannel.CheckBuffer(KDestBuf1, '\0')); |
|
734 XTEST(aChannel.CheckBuffer(KDestBuf2, 'C')); |
|
735 |
|
736 // |
|
737 // Test failure if the underlying DMA kernel extension allows it. |
|
738 // |
|
739 // As long as only "CancelAllFragments" is supported, it's okay to |
|
740 // always fail on the first fragment. |
|
741 // |
|
742 |
|
743 if (aChannel.FailNext(1) == KErrNone) |
|
744 { |
|
745 aChannel.FillBuffer(KDestBuf0, '\0'); |
|
746 aChannel.FillBuffer(KDestBuf1, '\0'); |
|
747 aChannel.FillBuffer(KDestBuf2, '\0'); |
|
748 XTEST(aChannel.Fragment(KRequest0, KSrcBuf0, KDestBuf0, aSize, &rs0) == KErrNone); |
|
749 test(aChannel.FragmentCheck(KRequest0, aFragmentCount)); |
|
750 XTEST(aChannel.Fragment(KRequest1, KSrcBuf1, KDestBuf1, aSize) == KErrNone); |
|
751 test(aChannel.FragmentCheck(KRequest1, aFragmentCount)); |
|
752 XTEST(aChannel.Fragment(KRequest2, KSrcBuf2, KDestBuf2, aSize) == KErrNone); |
|
753 test(aChannel.FragmentCheck(KRequest2, aFragmentCount)); |
|
754 XTEST(aChannel.Execute(_L8("Q0Q1Q2")) == KErrNone); |
|
755 User::WaitForRequest(rs0); |
|
756 XTEST(rs0 != KErrNone); |
|
757 XTEST(! aChannel.CheckBuffer(KDestBuf0, 'A')); |
|
758 XTEST(! aChannel.CheckBuffer(KDestBuf1, 'B')); |
|
759 XTEST(! aChannel.CheckBuffer(KDestBuf2, 'C')); |
|
760 XTEST(aChannel.Execute(_L8("C")) == KErrNone); |
|
761 |
|
762 // Transfer again to ensure cancel cleaned-up correctly |
|
763 aChannel.FillBuffer(KDestBuf0, '\0'); |
|
764 aChannel.FillBuffer(KDestBuf1, '\0'); |
|
765 aChannel.FillBuffer(KDestBuf2, '\0'); |
|
766 XTEST(aChannel.Fragment(KRequest0, KSrcBuf0, KDestBuf0, aSize, &rs0) == KErrNone); |
|
767 test(aChannel.FragmentCheck(KRequest0, aFragmentCount)); |
|
768 XTEST(aChannel.Fragment(KRequest1, KSrcBuf1, KDestBuf1, aSize, &rs1) == KErrNone); |
|
769 test(aChannel.FragmentCheck(KRequest1, aFragmentCount)); |
|
770 XTEST(aChannel.Fragment(KRequest2, KSrcBuf2, KDestBuf2, aSize, &rs2) == KErrNone); |
|
771 test(aChannel.FragmentCheck(KRequest2, aFragmentCount)); |
|
772 XTEST(aChannel.Execute(_L8("Q0Q1Q2")) == KErrNone); |
|
773 User::WaitForRequest(rs0); |
|
774 XTEST(rs0 == KErrNone); |
|
775 User::WaitForRequest(rs1); |
|
776 XTEST(rs1 == KErrNone); |
|
777 User::WaitForRequest(rs2); |
|
778 XTEST(rs2 == KErrNone); |
|
779 XTEST(aChannel.CheckBuffer(KDestBuf0, 'A')); |
|
780 XTEST(aChannel.CheckBuffer(KDestBuf1, 'B')); |
|
781 XTEST(aChannel.CheckBuffer(KDestBuf2, 'C')); |
|
782 } |
|
783 |
|
784 // |
|
785 // Test that framework behaves correctly if one or more DMA interrupts are |
|
786 // missed. |
|
787 // |
|
788 |
|
789 if (aChannel.MissNextInterrupts(1) == KErrNone) |
|
790 { |
|
791 aChannel.FillBuffer(KDestBuf0, '\0'); |
|
792 aChannel.FillBuffer(KDestBuf1, '\0'); |
|
793 aChannel.FillBuffer(KDestBuf2, '\0'); |
|
794 XTEST(aChannel.Fragment(KRequest0, KSrcBuf0, KDestBuf0, aSize, &rs0) == KErrNone); |
|
795 test(aChannel.FragmentCheck(KRequest0, aFragmentCount)); |
|
796 XTEST(aChannel.Fragment(KRequest1, KSrcBuf1, KDestBuf1, aSize, &rs1) == KErrNone); |
|
797 test(aChannel.FragmentCheck(KRequest1, aFragmentCount)); |
|
798 XTEST(aChannel.Fragment(KRequest2, KSrcBuf2, KDestBuf2, aSize, &rs2) == KErrNone); |
|
799 test(aChannel.FragmentCheck(KRequest2, aFragmentCount)); |
|
800 XTEST(aChannel.Execute(_L8("Q0Q1Q2")) == KErrNone); |
|
801 User::WaitForRequest(rs0); |
|
802 XTEST(rs0 == KErrNone); |
|
803 User::WaitForRequest(rs1); |
|
804 XTEST(rs1 == KErrNone); |
|
805 User::WaitForRequest(rs2); |
|
806 XTEST(rs2 == KErrNone); |
|
807 XTEST(aChannel.CheckBuffer(KDestBuf0, 'A')); |
|
808 XTEST(aChannel.CheckBuffer(KDestBuf1, 'B')); |
|
809 XTEST(aChannel.CheckBuffer(KDestBuf2, 'C')); |
|
810 } |
|
811 |
|
812 if (aChannel.MissNextInterrupts(2) == KErrNone) |
|
813 { |
|
814 aChannel.FillBuffer(KDestBuf0, '\0'); |
|
815 aChannel.FillBuffer(KDestBuf1, '\0'); |
|
816 aChannel.FillBuffer(KDestBuf2, '\0'); |
|
817 XTEST(aChannel.Fragment(KRequest0, KSrcBuf0, KDestBuf0, aSize, &rs0) == KErrNone); |
|
818 test(aChannel.FragmentCheck(KRequest0, aFragmentCount)); |
|
819 XTEST(aChannel.Fragment(KRequest1, KSrcBuf1, KDestBuf1, aSize, &rs1) == KErrNone); |
|
820 test(aChannel.FragmentCheck(KRequest1, aFragmentCount)); |
|
821 XTEST(aChannel.Fragment(KRequest2, KSrcBuf2, KDestBuf2, aSize, &rs2) == KErrNone); |
|
822 test(aChannel.FragmentCheck(KRequest2, aFragmentCount)); |
|
823 XTEST(aChannel.Execute(_L8("Q0Q1Q2")) == KErrNone); |
|
824 User::WaitForRequest(rs0); |
|
825 XTEST(rs0 == KErrNone); |
|
826 User::WaitForRequest(rs1); |
|
827 XTEST(rs1 == KErrNone); |
|
828 User::WaitForRequest(rs2); |
|
829 XTEST(rs2 == KErrNone); |
|
830 XTEST(aChannel.CheckBuffer(KDestBuf0, 'A')); |
|
831 XTEST(aChannel.CheckBuffer(KDestBuf1, 'B')); |
|
832 XTEST(aChannel.CheckBuffer(KDestBuf2, 'C')); |
|
833 } |
|
834 |
|
835 aChannel.FreeAllBuffers(); |
|
836 } |
|
837 |
|
838 |
|
839 static TBool ParseCmdLine(TBool& aCrashDbg, TInt& aMaxfrag, TInt& aMaxIter, TInt& aMaxchannel, TInt& aMaxFragSize) |
|
840 // |
|
841 // The command line. Syntax is: |
|
842 // |
|
843 // t_dma [enableCrashDebugger [aMaxFrag [aMaxIter [aMaxchannel [aMaxFragSize]]]]] |
|
844 // |
|
845 { |
|
846 TBuf<256> cmdline; |
|
847 User::CommandLine(cmdline); |
|
848 TLex lex(cmdline); |
|
849 |
|
850 lex.SkipSpace(); |
|
851 |
|
852 if (lex.Eos()) |
|
853 return ETrue; |
|
854 if (lex.Val(aCrashDbg) != KErrNone) |
|
855 return EFalse; |
|
856 lex.SkipSpace(); |
|
857 if (lex.Eos()) |
|
858 return ETrue; |
|
859 if (lex.Val(aMaxfrag) != KErrNone) |
|
860 return EFalse; |
|
861 lex.SkipSpace(); |
|
862 if (lex.Eos()) |
|
863 return ETrue; |
|
864 if (lex.Val(aMaxIter) != KErrNone) |
|
865 return EFalse; |
|
866 lex.SkipSpace(); |
|
867 if (lex.Eos()) |
|
868 return ETrue; |
|
869 if (lex.Val(aMaxchannel) != KErrNone) |
|
870 return EFalse; |
|
871 lex.SkipSpace(); |
|
872 if (lex.Eos()) |
|
873 return ETrue; |
|
874 |
|
875 return lex.Val(aMaxFragSize) == KErrNone; |
|
876 } |
|
877 |
|
878 |
|
879 TInt E32Main() |
|
880 { |
|
881 test.Title(); |
|
882 |
|
883 test.Start(_L("Parsing command-line")); |
|
884 // Default values when run with empty command-line |
|
885 TInt maxfrag = 16; // 5 fragments needed to exercise fully double-buffering state machine |
|
886 TInt maxIter = 3; |
|
887 TInt maxchannel = KMaxTInt; |
|
888 TBool crashDbg = EFalse; |
|
889 TInt maxFragSize = 0x4000; //16k |
|
890 |
|
891 (void) ParseCmdLine(crashDbg, maxfrag, maxIter, maxchannel, maxFragSize); |
|
892 |
|
893 if (crashDbg) |
|
894 { |
|
895 User::SetCritical(User::ESystemCritical); |
|
896 User::SetProcessCritical(User::ESystemCritical); |
|
897 } |
|
898 |
|
899 TInt r; |
|
900 #if defined(__DMASIM__) && defined(__WINS__) |
|
901 test.Next(_L("Loading DMA simulator")); |
|
902 r = User::LoadLogicalDevice(_L("DMASIM.DLL")); |
|
903 test(r == KErrNone || r == KErrAlreadyExists); |
|
904 #endif |
|
905 |
|
906 test.Next(_L("Loading test LDD")); |
|
907 #ifdef __DMASIM__ |
|
908 r = User::LoadLogicalDevice(_L("D_DMASIM")); |
|
909 #else |
|
910 r = User::LoadLogicalDevice(_L("D_DMA")); |
|
911 if (r == KErrNotFound) |
|
912 { |
|
913 test.Printf(_L("DMA not supported - test skipped\n")); |
|
914 return 0; |
|
915 } |
|
916 #endif |
|
917 test(r == KErrNone || r == KErrAlreadyExists); |
|
918 |
|
919 // Turn off evil lazy dll unloading |
|
920 RLoader l; |
|
921 test(l.Connect()==KErrNone); |
|
922 test(l.CancelLazyDllUnload()==KErrNone); |
|
923 l.Close(); |
|
924 |
|
925 __UHEAP_MARK; |
|
926 __KHEAP_MARK; |
|
927 |
|
928 test.Next(_L("Creating critical section")); |
|
929 test(TheCriticalSection.CreateLocal() == KErrNone); |
|
930 |
|
931 test.Next(_L("Creating active scheduler")); |
|
932 CActiveScheduler* pS = new CActiveScheduler; |
|
933 test(pS != NULL); |
|
934 CActiveScheduler::Install(pS); |
|
935 |
|
936 test.Next(_L("Creating bipper")); |
|
937 Bipper = CPeriodic::New(CActive::EPriorityStandard); |
|
938 test(Bipper != NULL); |
|
939 |
|
940 test.Next(_L("Getting channel info")); |
|
941 GetChannelInfo(); |
|
942 |
|
943 // Size for the single transfer test |
|
944 TInt totalTransferSize = 64 * KKilo; |
|
945 |
|
946 test.Next(_L("Testing one shot single buffer transfer")); |
|
947 RunSbTest(maxchannel, new CFragmentationTest(TestOneShot, maxIter, maxfrag, maxFragSize)); |
|
948 RunSbTest(maxchannel, new CDefaultFragTest(TestOneShot, maxIter, totalTransferSize)); |
|
949 |
|
950 test.Next(_L("Testing one shot double buffer transfer")); |
|
951 RunDbTest(maxchannel, new CFragmentationTest(TestOneShot, maxIter, maxfrag, maxFragSize)); |
|
952 RunDbTest(maxchannel, new CDefaultFragTest(TestOneShot, maxIter, totalTransferSize)); |
|
953 |
|
954 test.Next(_L("Testing one shot scatter/gather transfer")); |
|
955 RunSgTest(maxchannel, new CFragmentationTest(TestOneShot, maxIter, maxfrag, maxFragSize)); |
|
956 RunSgTest(maxchannel, new CDefaultFragTest(TestOneShot, maxIter, totalTransferSize)); |
|
957 |
|
958 test.Next(_L("Testing streaming single buffer transfer")); |
|
959 RunSbTest(maxchannel, new CFragmentationTest(TestStreaming, maxIter, maxfrag, maxFragSize)); |
|
960 RunSbTest(maxchannel, new CDefaultFragTest(TestStreaming, maxIter, totalTransferSize)); |
|
961 |
|
962 test.Next(_L("Testing streaming double buffer transfer")); |
|
963 RunDbTest(maxchannel, new CFragmentationTest(TestStreaming, maxIter, maxfrag, maxFragSize)); |
|
964 RunDbTest(maxchannel, new CDefaultFragTest(TestStreaming, maxIter, totalTransferSize)); |
|
965 |
|
966 test.Next(_L("Testing streaming scatter/gather transfer")); |
|
967 RunSgTest(maxchannel, new CFragmentationTest(TestStreaming, maxIter, maxfrag, maxFragSize)); |
|
968 RunSgTest(maxchannel, new CDefaultFragTest(TestStreaming, maxIter, totalTransferSize)); |
|
969 |
|
970 delete pS; |
|
971 delete Bipper; |
|
972 TheCriticalSection.Close(); |
|
973 |
|
974 UserSvr::HalFunction(EHalGroupKernel, EKernelHalSupervisorBarrier, (TAny*)5000, 0); |
|
975 __KHEAP_MARKEND; |
|
976 __UHEAP_MARKEND; |
|
977 |
|
978 test.End(); |
|
979 return 0; |
|
980 } |