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1 // Copyright (c) 2010-2010 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\power\t_frqchg.cpp |
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15 // |
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16 // |
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17 |
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18 #define __E32TEST_EXTENSION__ |
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19 #include <e32test.h> |
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20 #include <e32math.h> |
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21 #include <e32atomics.h> |
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22 #include <hal.h> |
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23 #include "d_frqchg.h" |
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24 #include <e32svr.h> |
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25 #include "u32std.h" |
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26 |
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27 RFrqChg Driver; |
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28 RTest test(_L("T_FRQCHG")); |
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29 |
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30 // test will fail if slice is > (expected+KSliceDeltaPercent%of expexted) |
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31 // or < (expected-KSliceDeltaPercent%expected) |
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32 const TInt KSliceDeltaPercent = 5; |
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33 // test will fail for global timer based timestamps if interval measured |
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34 // is > (expected+KTimeStampDeltaPercent%of expexted) |
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35 // or < (expected-KTimeStampDeltaPercent%expected) |
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36 const TInt KTimeStampDeltaPercent = 5; |
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37 |
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38 TInt RealToRatio(SRatio& aRatio, const TRealX& aReal) |
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39 { |
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40 aRatio.iSpare1 = 0; |
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41 aRatio.iSpare2 = 0; |
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42 if (aReal.iSign || aReal.IsZero() || aReal.IsNaN()) |
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43 { |
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44 aRatio.iM = 0; |
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45 aRatio.iX = 0; |
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46 return (aReal.IsZero()) ? KErrNone : KErrNotSupported; |
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47 } |
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48 TRealX rx(aReal); |
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49 TRealX rr(rx); |
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50 rr.iExp -= 32; |
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51 rr.iMantLo = 0; |
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52 rr.iMantHi = 0x80000000u; |
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53 rx += rr; // rounding |
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54 TInt exp = rx.iExp - 32767 - 31; |
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55 if (exp < -32768) |
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56 { |
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57 aRatio.iM = 0; |
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58 aRatio.iX = 0; |
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59 return KErrUnderflow; |
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60 } |
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61 if (exp > 32767) |
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62 { |
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63 aRatio.iM = 0xffffffffu; |
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64 aRatio.iX = 32767; |
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65 return KErrOverflow; |
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66 } |
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67 aRatio.iM = rx.iMantHi; |
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68 aRatio.iX = (TInt16)exp; |
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69 return KErrNone; |
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70 } |
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71 |
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72 TInt RatioToReal(TRealX& a, const SRatio& aRatio) |
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73 { |
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74 a.iSign = 0; |
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75 a.iFlag = 0; |
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76 a.iMantLo = 0; |
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77 a.iMantHi = aRatio.iM; |
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78 if (!aRatio.iM) |
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79 { |
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80 a.SetZero(); |
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81 return KErrNone; |
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82 } |
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83 TInt exp = aRatio.iX + 31 + 32767; |
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84 if (exp > 65534) |
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85 { |
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86 a.SetInfinite(EFalse); |
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87 } |
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88 else |
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89 { |
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90 a.iExp = (TUint16)exp; |
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91 } |
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92 return KErrNone; |
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93 } |
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94 |
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95 TInt RatioSetValue(TRealX& a, TUint32 aInt, TInt aDivisorExp) |
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96 { |
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97 a.Set(TUint(aInt)); |
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98 TInt exp = a.iExp; |
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99 exp -= aDivisorExp; |
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100 if (exp<1) |
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101 { |
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102 a.SetZero(); |
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103 return KErrUnderflow; |
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104 } |
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105 if (exp>65534) |
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106 { |
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107 a.SetInfinite(EFalse); |
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108 return KErrOverflow; |
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109 } |
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110 a.iExp = (TInt16)exp; |
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111 return KErrNone; |
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112 } |
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113 |
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114 TInt RatioReciprocal(SRatio& aRatio) |
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115 { |
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116 TRealX rx; |
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117 TInt r = RatioToReal(rx, aRatio); |
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118 if (r != KErrNone) |
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119 return r; |
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120 rx = TRealX(1) / rx; |
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121 return RealToRatio(aRatio, rx); |
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122 } |
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123 |
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124 TInt RatioMult(const SRatio& aRatio, TUint32& aInt32) |
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125 { |
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126 TRealX rx; |
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127 TInt r = RatioToReal(rx, aRatio); |
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128 if (r != KErrNone) |
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129 return r; |
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130 r = rx.MultEq(TRealX((TUint)aInt32)); |
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131 if (r != KErrNone) |
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132 return r; |
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133 if (rx.IsZero()) |
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134 { |
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135 aInt32 = 0; |
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136 return KErrNone; |
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137 } |
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138 rx.AddEq(TRealX(0.5)); |
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139 if (rx<TRealX(1)) |
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140 { |
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141 aInt32 = 0; |
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142 return KErrUnderflow; |
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143 } |
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144 if (rx.iExp > 32767+31) |
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145 { |
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146 aInt32 = ~0u; |
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147 return KErrOverflow; |
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148 } |
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149 aInt32 = rx.operator TUint(); |
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150 return KErrNone; |
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151 } |
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152 |
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153 void RatioPrint(const char* aTitle, const SRatio& aRatio) |
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154 { |
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155 TPtrC8 t8((const TUint8*)aTitle); |
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156 TBuf<256> t16; |
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157 t16.Copy(t8); |
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158 test.Printf(_L("%S: %08x %04x\n"), &t16, aRatio.iM, TUint16(aRatio.iX)); |
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159 } |
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160 |
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161 void RatioPrint2(const char* aTitle, const SRatio& aR1, const SRatio& aR2) |
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162 { |
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163 TPtrC8 t8((const TUint8*)aTitle); |
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164 TBuf<256> t16; |
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165 t16.Copy(t8); |
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166 test.Printf(_L("%S: %08x %04x %08x %04x\n"), &t16, aR1.iM, TUint16(aR1.iX), aR2.iM, TUint16(aR2.iX)); |
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167 } |
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168 |
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169 void TestEqual(const SRatio& aActual, const SRatio& aExpected) |
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170 { |
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171 if (aActual.iM==aExpected.iM && aActual.iX==aExpected.iX) |
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172 return; |
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173 RatioPrint("Actual", aActual); |
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174 RatioPrint("Expected", aExpected); |
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175 test(0); |
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176 } |
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177 |
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178 const TUint32 MultTestIntegers[] = |
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179 { |
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180 0u, 1u, 2u, 3u, 5u, 7u, 11u, 13u, 17u, 19u, 23u, 29u, 31u, 37u, 41u, 43u, 47u, |
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181 50u, 51u, 53u, 59u, 61u, 63u, 67u, 71u, 72u, 81u, 100u, 127u, 133u, 187u, 200u, |
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182 4u, 8u, 16u, 32u, 64u, 128u, 256u, 512u, 1024u, 2048u, 4096u, 8192u, 16384u, |
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183 32768u, 65536u, 131072u, 262144u, 524288u, 1048576u, 2097152u, 4194304u, 8388608u, |
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184 16777216u, 33554432u, 67108864u, 134217728u, 268435456u, 536870912u, 1073741824u, |
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185 2147483648u, 4294967295u, |
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186 9u, 27u, 243u, 729u, 2187u, 6561u, 19683u, 59049u, 177147u, 531441u, 1594323u, |
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187 4782969u, 14348907u, 43046721u, 129140163u, 387420489u, 1162261467u, 3486784401u, |
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188 25u, 125u, 625u, 3125u, 15625u, 78125u, 390625u, 1953125u, 9765625u, |
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189 48828125u, 244140625u, 1220703125u, |
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190 49u, 343u, 2401u, 16807u, 117649u, 823543u, 5764801u, 40353607u, 282475249u, 1977326743u |
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191 }; |
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192 |
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193 void Test1M(const SRatio& aRatio) |
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194 { |
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195 SRatio ratio = aRatio; |
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196 const TInt N = sizeof(MultTestIntegers)/sizeof(MultTestIntegers[0]); |
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197 test.Printf(_L("Testing %d integers\n"), N); |
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198 TInt i; |
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199 for (i=0; i<N; ++i) |
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200 { |
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201 TUint32 I = MultTestIntegers[i]; |
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202 TUint32 I0 = I; |
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203 TUint32 I1 = I; |
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204 TInt r0 = RatioMult(aRatio, I0); |
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205 TInt r1 = Driver.RatioMult(ratio, I1); |
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206 if (r0!=KErrNone || r1!=KErrNone) |
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207 { |
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208 if (r0!=r1) |
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209 { |
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210 test.Printf(_L("Return code mismatch r0=%d r1=%d (I=%08x I0=%08x I1=%08x)\n"), r0, r1, I, I0, I1); |
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211 test(0); |
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212 } |
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213 } |
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214 else if (I0!=I1) |
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215 { |
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216 test.Printf(_L("Result mismatch I=%08x I0=%08x I1=%08x\n"), I, I0, I1); |
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217 } |
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218 } |
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219 } |
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220 |
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221 void Test1(TUint32 aInt, TInt aDivisorExp) |
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222 { |
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223 TRealX realx; |
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224 SRatio r0x; |
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225 SRatio r0; |
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226 SRatio r1x; |
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227 SRatio r1; |
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228 TInt r; |
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229 test.Printf(_L("Test1 %08x %d\n"), aInt, aDivisorExp); |
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230 r = RatioSetValue(realx, aInt, aDivisorExp); |
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231 test_KErrNone(r); |
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232 r = RealToRatio(r0x, realx); |
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233 test_KErrNone(r); |
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234 r = Driver.RatioSet(r0, aInt, aDivisorExp); |
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235 RatioPrint2("R0X,R0", r0x, r0); |
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236 TestEqual(r0, r0x); |
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237 Test1M(r0); |
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238 r1x = r0x; |
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239 r = RatioReciprocal(r1x); |
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240 test_KErrNone(r); |
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241 r1 = r0; |
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242 r = Driver.RatioReciprocal(r1); |
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243 test_KErrNone(r); |
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244 RatioPrint2("R1X,R1", r1x, r1); |
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245 TestEqual(r1, r1x); |
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246 Test1M(r1); |
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247 } |
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248 |
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249 void TestRatios() |
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250 { |
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251 Test1(1,0); |
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252 Test1(3,0); |
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253 Test1(0xb504f334u,32); |
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254 Test1(0xc90fdaa2u,30); |
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255 Test1(10,0); |
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256 Test1(0xcccccccd,35); |
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257 Test1(100,0); |
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258 Test1(0xa3d70a3d,38); |
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259 } |
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260 |
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261 class CircBuf |
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262 { |
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263 public: |
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264 static CircBuf* New(TInt aSlots); |
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265 CircBuf(); |
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266 ~CircBuf(); |
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267 TInt TryPut(TUint32 aIn); |
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268 void Reset(); |
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269 public: |
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270 volatile TUint32* iBufBase; |
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271 TUint32 iSlotCount; |
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272 volatile TUint32 iPutIndex; |
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273 }; |
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274 |
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275 CircBuf* CircBuf::New(TInt aSlots) |
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276 { |
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277 test(TUint32(aSlots-1)<65536); |
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278 CircBuf* p = new CircBuf(); |
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279 p->iSlotCount = aSlots; |
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280 p->iPutIndex = 0; |
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281 p->iBufBase = (TUint32*)User::Alloc(aSlots*sizeof(TUint32)); |
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282 if (!p->iBufBase) |
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283 { |
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284 delete p; |
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285 p = 0; |
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286 } |
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287 __e32_memory_barrier(); |
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288 return p; |
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289 } |
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290 |
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291 CircBuf::CircBuf() |
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292 { |
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293 iBufBase = 0; |
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294 } |
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295 |
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296 CircBuf::~CircBuf() |
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297 { |
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298 User::Free((TAny*)iBufBase); |
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299 } |
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300 |
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301 TInt CircBuf::TryPut(TUint32 aIn) |
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302 { |
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303 TUint32 orig = __e32_atomic_tau_rlx32(&iPutIndex, iSlotCount, 0, 1); |
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304 if (orig == iSlotCount) |
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305 return KErrOverflow; |
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306 iBufBase[orig] = aIn; |
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307 return KErrNone; |
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308 } |
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309 |
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310 void CircBuf::Reset() |
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311 { |
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312 __e32_atomic_store_ord32(&iPutIndex, 0); |
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313 } |
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314 |
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315 |
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316 |
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317 class CTimesliceTestThread : public CBase |
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318 { |
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319 public: |
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320 CTimesliceTestThread(); |
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321 ~CTimesliceTestThread(); |
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322 static CTimesliceTestThread* New(TUint32 aId, TInt aCpu, TInt aSlice, CircBuf* aBuf); |
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323 void Start(); |
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324 void Wait(); |
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325 TBool Finished(); |
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326 TInt Construct(TUint32 aId, TInt aCpu, TInt aSlice, CircBuf* aBuf); |
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327 static TInt ThreadFunc(TAny*); |
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328 public: |
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329 RThread iThread; |
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330 TRequestStatus iExitStatus; |
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331 TUint32 iId; |
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332 CircBuf* iBuf; |
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333 TUint32 iFreq; |
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334 TUint32 iThresh; |
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335 TUint32 iThresh2; |
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336 TInt iCpu; |
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337 TInt iSlice; |
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338 }; |
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339 |
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340 CTimesliceTestThread::CTimesliceTestThread() |
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341 { |
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342 iThread.SetHandle(0); |
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343 } |
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344 |
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345 CTimesliceTestThread::~CTimesliceTestThread() |
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346 { |
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347 if (iThread.Handle()) |
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348 { |
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349 if (iThread.ExitType() == EExitPending) |
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350 { |
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351 iThread.Kill(0); |
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352 Wait(); |
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353 } |
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354 CLOSE_AND_WAIT(iThread); |
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355 } |
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356 } |
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357 |
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358 TInt CTimesliceTestThread::Construct(TUint32 aId, TInt aCpu, TInt aSlice, CircBuf* aBuf) |
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359 { |
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360 iId = aId; |
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361 iCpu = aCpu; |
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362 iSlice = aSlice; |
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363 iBuf = aBuf; |
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364 |
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365 TInt r = HAL::Get(HAL::EFastCounterFrequency, (TInt&)iFreq); |
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366 if (r!=KErrNone) |
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367 return r; |
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368 iThresh = iFreq / 3000; |
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369 if (iThresh < 10) |
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370 iThresh = 10; |
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371 iThresh2 = iFreq; |
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372 TBuf<16> name = _L("TSThrd"); |
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373 name.AppendNum(iId); |
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374 r = iThread.Create(name, &ThreadFunc, 0x1000, NULL, this); |
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375 if (r!=KErrNone) |
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376 return r; |
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377 iThread.Logon(iExitStatus); |
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378 if (iExitStatus != KRequestPending) |
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379 { |
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380 iThread.Kill(0); |
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381 iThread.Close(); |
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382 iThread.SetHandle(0); |
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383 return iExitStatus.Int(); |
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384 } |
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385 return KErrNone; |
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386 } |
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387 |
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388 CTimesliceTestThread* CTimesliceTestThread::New(TUint32 aId, TInt aCpu, TInt aSlice, CircBuf* aBuf) |
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389 { |
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390 CTimesliceTestThread* p = new CTimesliceTestThread; |
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391 if (p) |
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392 { |
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393 TInt r = p->Construct(aId, aCpu, aSlice, aBuf); |
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394 if (r != KErrNone) |
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395 { |
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396 delete p; |
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397 p = 0; |
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398 } |
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399 } |
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400 return p; |
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401 } |
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402 |
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403 void CTimesliceTestThread::Start() |
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404 { |
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405 iThread.Resume(); |
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406 } |
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407 |
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408 TBool CTimesliceTestThread::Finished() |
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409 { |
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410 return (KRequestPending!=iExitStatus.Int()); |
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411 } |
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412 |
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413 void CTimesliceTestThread::Wait() |
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414 { |
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415 User::WaitForRequest(iExitStatus); |
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416 } |
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417 |
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418 TInt CTimesliceTestThread::ThreadFunc(TAny* aPtr) |
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419 { |
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420 CTimesliceTestThread& a = *(CTimesliceTestThread*)aPtr; |
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421 Driver.SetCurrentThreadCpu(a.iCpu); |
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422 Driver.SetCurrentThreadPriority(63); |
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423 Driver.SetCurrentThreadTimeslice(a.iSlice); |
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424 User::AfterHighRes(100000); |
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425 TUint id = a.iId; |
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426 TUint32 last_interval_begin = User::FastCounter(); |
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427 TUint32 last_seen_time = User::FastCounter(); |
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428 FOREVER |
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429 { |
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430 TUint32 nfc = User::FastCounter(); |
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431 TUint32 delta = nfc - last_seen_time; |
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432 TUint32 interval_length = last_seen_time - last_interval_begin; |
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433 if (delta > a.iThresh || interval_length > a.iThresh2) |
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434 { |
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435 last_interval_begin = nfc; |
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436 TUint32 x = (id<<30) | (interval_length&0x3fffffffu); |
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437 TInt r = a.iBuf->TryPut(x); |
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438 if (r != KErrNone) |
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439 break; |
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440 } |
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441 last_seen_time = nfc; |
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442 } |
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443 return KErrNone; |
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444 } |
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445 |
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446 CircBuf* RunTimesliceTest(TInt aCpu, TInt aSlice, TInt aCount, TInt aInterfere = 0) |
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447 { |
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448 TUint32 oldaff = 0; |
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449 TUint32 interfereAffinity = 0; |
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450 TUint tellKernel = 0x80000000u; |
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451 |
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452 CircBuf* buf = CircBuf::New(aCount); |
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453 test(buf != 0); |
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454 CTimesliceTestThread* t0 = CTimesliceTestThread::New(0, aCpu, aSlice, buf); |
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455 test(t0 != 0); |
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456 CTimesliceTestThread* t1 = CTimesliceTestThread::New(1, aCpu, aSlice, buf); |
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457 test(t1 != 0); |
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458 |
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459 if (aInterfere) |
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460 { |
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461 if (aInterfere < 0) |
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462 { |
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463 tellKernel = 0; |
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464 } |
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465 TInt r = UserSvr::HalFunction(EHalGroupKernel, EKernelHalNumLogicalCpus, 0, 0); |
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466 test(r>0); |
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467 interfereAffinity = (0x80000000 | ((0x1<<r)-1)) & ~0x2; // all except core 1 |
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468 if (0x80000001 == interfereAffinity) |
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469 { |
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470 interfereAffinity = 0; // dual core system (not doing this fails affinity check later) |
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471 } |
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472 |
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473 Driver.SetCurrentThreadCpu(interfereAffinity , &oldaff); // move away from core 1 (doesn't hurt though not much difference gained) |
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474 Driver.SetCurrentThreadPriority(63); // changing prescaler requires running on core 1 so priority needs to |
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475 } // match test threads |
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476 |
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477 |
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478 t0->Start(); |
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479 t1->Start(); |
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480 if (aInterfere) |
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481 { |
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482 TInt prescale = 1; |
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483 while (!t0->Finished() || !t1->Finished()) |
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484 { |
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485 User::AfterHighRes(23000); |
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486 Driver.SetLocalTimerPrescaler((1u<<1)|tellKernel, prescale); |
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487 prescale++; |
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488 if (prescale > 4) |
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489 { |
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490 prescale = 0; |
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491 } |
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492 } |
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493 } |
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494 |
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495 t0->Wait(); |
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496 t1->Wait(); |
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497 |
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498 delete t0; |
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499 delete t1; |
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500 if (aInterfere) |
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501 { |
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502 TUint32 aff; |
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503 Driver.SetLocalTimerPrescaler((1u<<1)|0x80000000u, -1); |
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504 RThread().SetPriority(EPriorityNormal); |
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505 Driver.SetCurrentThreadCpu(oldaff,&aff); |
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506 test_Equal(aff,interfereAffinity); |
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507 } |
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508 return buf; |
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509 } |
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510 |
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511 TUint32 ticks_to_us(TUint32 aTicks, TUint32 aF) |
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512 { |
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513 TUint64 x = TUint64(aTicks) * TUint64(1000000); |
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514 TUint64 f64 = aF; |
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515 x += (f64>>1); |
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516 x /= f64; |
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517 return I64LOW(x); |
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518 } |
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519 |
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520 void DisplayBuffer(CircBuf* aBuf, TUint32 aSlice ) |
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521 { |
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522 TUint32 f; |
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523 TInt r = HAL::Get(HAL::EFastCounterFrequency, (TInt&)f); |
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524 test_KErrNone(r); |
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525 TUint32* p = (TUint32*)aBuf->iBufBase; |
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526 TInt c = aBuf->iSlotCount; |
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527 TInt i; |
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528 TInt lid = -1; |
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529 TUint32 min = ~0u; |
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530 TUint32 max = 0; |
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531 TUint32 totivus = 0; |
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532 TBool firstchg = ETrue; |
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533 for (i=0; i<c; ++i) |
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534 { |
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535 TUint32 x = p[i]; |
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536 TUint32 id = x>>30; |
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537 TUint32 iv = (x<<2)>>2; |
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538 TUint32 ivus = ticks_to_us(iv,f); |
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539 if (lid >= 0) |
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540 { |
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541 if (lid == (TInt)id) |
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542 totivus += ivus; |
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543 else |
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544 { |
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545 if (!firstchg) |
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546 { |
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547 if (totivus < min) |
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548 min = totivus; |
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549 if (totivus > max) |
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550 max = totivus; |
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551 } |
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552 else |
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553 firstchg = EFalse; |
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554 totivus = ivus; |
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555 } |
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556 } |
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557 lid = (TInt)id; |
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558 test.Printf(_L("ID: %1d IV: %10d (=%10dus) TIV %10dus\n"), id, iv, ivus, totivus); |
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559 } |
|
560 |
|
561 if (aSlice > 0) |
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562 { |
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563 // check timeslices where within acceptable ranges |
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564 TUint32 sliceError = KSliceDeltaPercent*aSlice/100; |
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565 test_Compare(max,<,aSlice+sliceError); |
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566 test_Compare(min,>,aSlice-sliceError); |
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567 } |
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568 test.Printf(_L("RANGE %d-%dus (%dus)\n"), min, max, max-min); |
|
569 } |
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570 |
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571 void TT() |
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572 { |
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573 test.Printf(_L("Timeslicing test ...\n")); |
|
574 CircBuf* b = RunTimesliceTest(1, 50000, 100); |
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575 test.Next(_L("Baseline - expecting normal")); |
|
576 DisplayBuffer(b,50000u); |
|
577 delete b; |
|
578 |
|
579 Driver.SetLocalTimerPrescaler(1u<<1, 1); |
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580 b = RunTimesliceTest(1, 50000, 100); |
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581 test.Next(_L("expecting double")); |
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582 DisplayBuffer(b,100000u); |
|
583 delete b; |
|
584 |
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585 Driver.SetLocalTimerPrescaler(1u<<1|0x80000000u, 1); |
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586 test.Next(_L("expecting normal again")); |
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587 b = RunTimesliceTest(1, 50000, 100); |
|
588 DisplayBuffer(b,50000u); |
|
589 delete b; |
|
590 |
|
591 test.Next(_L("expecting half")); |
|
592 Driver.SetLocalTimerPrescaler(1u<<1, -1); |
|
593 b = RunTimesliceTest(1, 50000, 100); |
|
594 DisplayBuffer(b,25000u); |
|
595 delete b; |
|
596 |
|
597 Driver.SetLocalTimerPrescaler(1u<<1|0x80000000u, -1); |
|
598 test.Next(_L("expecting normal again")); |
|
599 b = RunTimesliceTest(1, 50000, 100); |
|
600 DisplayBuffer(b,50000u); |
|
601 delete b; |
|
602 |
|
603 b = RunTimesliceTest(1, 50000, 200 ,-1); |
|
604 test.Next(_L("expecting random")); |
|
605 DisplayBuffer(b,0u); // timeslices should be fairly random on this run |
|
606 |
|
607 b = RunTimesliceTest(1, 50000, 200 ,1); |
|
608 test.Next(_L("expecting normal again")); |
|
609 DisplayBuffer(b,50000u); |
|
610 delete b; |
|
611 } |
|
612 |
|
613 struct SGTRecord |
|
614 { |
|
615 TUint64 iTSInterval; |
|
616 TUint64 iGTInterval; |
|
617 }; |
|
618 |
|
619 |
|
620 SGTRecord* RunGTTest(TInt aCount, TInt aWait) |
|
621 { |
|
622 TUint64 lastgt,lastts,gt,ts; |
|
623 |
|
624 SGTRecord* res = new SGTRecord[aCount]; |
|
625 test(res!=0); |
|
626 |
|
627 |
|
628 TInt r = Driver.ReadGlobalTimerAndTimestamp(lastgt,lastts); |
|
629 test_Equal(r,KErrNone); |
|
630 |
|
631 for (TInt i = 0; i < aCount; i++) |
|
632 { |
|
633 User::AfterHighRes(aWait); |
|
634 |
|
635 TInt r = Driver.ReadGlobalTimerAndTimestamp(gt,ts); |
|
636 test_Equal(r,KErrNone); |
|
637 res[i].iGTInterval = gt-lastgt; |
|
638 lastgt = gt; |
|
639 res[i].iTSInterval = ts-lastts; |
|
640 lastts = ts; |
|
641 } |
|
642 |
|
643 return res; |
|
644 } |
|
645 |
|
646 void DisplayGTResults(SGTRecord* aRec, TInt aCount, TUint32 aFreq, TUint64 aExpectedTSInterval, TUint64 aExpectedGTInterval) |
|
647 { |
|
648 SGTRecord max = { 0ul , 0ul }; |
|
649 SGTRecord min = { KMaxTUint64 , KMaxTUint64 }; |
|
650 |
|
651 TUint64 errgt = (aExpectedGTInterval*KTimeStampDeltaPercent)/100; |
|
652 TUint64 errts = (aExpectedTSInterval*KTimeStampDeltaPercent)/100; |
|
653 |
|
654 |
|
655 for (TInt i = 0 ; i < aCount; i++) |
|
656 { |
|
657 test.Printf(_L("gt interval : %Lu (gtticks) %Lu (us)\n"), |
|
658 aRec[i].iGTInterval, |
|
659 aRec[i].iTSInterval*1000000u/TUint64(aFreq)); |
|
660 |
|
661 if (max.iTSInterval < aRec[i].iTSInterval) |
|
662 { |
|
663 max.iTSInterval = aRec[i].iTSInterval; |
|
664 } |
|
665 if (max.iGTInterval < aRec[i].iGTInterval) |
|
666 { |
|
667 max.iGTInterval = aRec[i].iGTInterval; |
|
668 } |
|
669 |
|
670 if (min.iTSInterval > aRec[i].iTSInterval) |
|
671 { |
|
672 min.iTSInterval = aRec[i].iTSInterval; |
|
673 } |
|
674 if (min.iGTInterval > aRec[i].iGTInterval) |
|
675 { |
|
676 min.iGTInterval = aRec[i].iGTInterval; |
|
677 } |
|
678 } |
|
679 |
|
680 test.Printf(_L("RANGE Global Timer %Lu-%Lu ticks (%Lu ticks)\n"), |
|
681 min.iGTInterval, max.iGTInterval, max.iGTInterval-min.iGTInterval); |
|
682 |
|
683 test.Printf(_L("RANGE Timestamp %Lu-%Lu us (%Lu us)\n"), |
|
684 (1000000u*min.iGTInterval)/TUint64(aFreq), (1000000u*max.iGTInterval)/TUint64(aFreq), |
|
685 (1000000u*max.iGTInterval)/TUint64(aFreq) - (1000000u*min.iGTInterval)/TUint64(aFreq)); |
|
686 |
|
687 if (errts) |
|
688 { |
|
689 test_Compare(max.iTSInterval,<,aExpectedTSInterval+errts); |
|
690 test_Compare(min.iTSInterval,>,aExpectedTSInterval); |
|
691 } |
|
692 |
|
693 if (errgt) |
|
694 { |
|
695 test_Compare(max.iGTInterval,<,aExpectedGTInterval+errgt); |
|
696 test_Compare(min.iGTInterval,>,aExpectedGTInterval); |
|
697 } |
|
698 |
|
699 } |
|
700 |
|
701 void GTT() |
|
702 { |
|
703 test.Printf(_L("Global timer tests ...\n")); |
|
704 TUint64 gt,ts; |
|
705 |
|
706 TInt r = Driver.ReadGlobalTimerAndTimestamp(gt,ts); |
|
707 if (KErrNotSupported == r ) |
|
708 { |
|
709 test.Printf(_L("Global timer not supported in this plaform, skipping GT tests\n")); |
|
710 return; |
|
711 } |
|
712 |
|
713 TUint32 f; |
|
714 r = HAL::Get(HAL::EFastCounterFrequency, (TInt&)f); |
|
715 test_KErrNone(r); |
|
716 TInt wait = 100000; // 100ms |
|
717 TInt count = 10; |
|
718 |
|
719 TUint64 expectedTs = (TUint64(f)*TUint64(wait))/1000000u; |
|
720 TUint64 expectedGtOrig = expectedTs; |
|
721 |
|
722 SGTRecord* rec; |
|
723 for (TInt i = 0; i < 10; i++) |
|
724 { |
|
725 TUint64 expectedGt = expectedGtOrig/(i+1); |
|
726 r = Driver.SetGlobalTimerPrescaler(i); |
|
727 test_KErrNone(r); |
|
728 rec = RunGTTest(count, wait); |
|
729 test.Printf(_L("expectedTS %Lu expectedGT %Lu\n"),expectedTs,expectedGt); |
|
730 DisplayGTResults(rec,count, f, expectedTs , expectedGt); |
|
731 delete rec; |
|
732 } |
|
733 |
|
734 r = Driver.SetGlobalTimerPrescaler(-1); // back to default |
|
735 test_KErrNone(r); |
|
736 } |
|
737 |
|
738 void RunTests() |
|
739 { |
|
740 TestRatios(); |
|
741 if (Driver.FrqChgTestPresent()!=KErrNone) |
|
742 { |
|
743 test.Printf(_L("Frequency Change not supported on this platform\n")); |
|
744 return; |
|
745 } |
|
746 TT(); |
|
747 GTT(); |
|
748 } |
|
749 |
|
750 GLDEF_C TInt E32Main() |
|
751 { |
|
752 test.Title(); |
|
753 test.Start(_L("Testing")); |
|
754 TInt r = User::LoadLogicalDevice(KLddName); |
|
755 if (r==KErrNotFound) |
|
756 { |
|
757 test.Printf(_L("Test not supported on this platform\n")); |
|
758 } |
|
759 else |
|
760 { |
|
761 if (r!=KErrNone) |
|
762 { |
|
763 test_Equal(KErrAlreadyExists, r); |
|
764 } |
|
765 r = Driver.Open(); |
|
766 test_KErrNone(r); |
|
767 RunTests(); |
|
768 Driver.Close(); |
|
769 } |
|
770 |
|
771 test.End(); |
|
772 r = User::FreeLogicalDevice(KLddName); |
|
773 test_KErrNone(r); |
|
774 return KErrNone; |
|
775 } |