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1 // Copyright (c) 2008-2009 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 "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 // |
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15 |
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16 /** |
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17 @file |
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18 @publishedPartner |
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19 */ |
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20 |
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21 #include <bluetooth/hci/hcishared.h> |
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22 #include "btfeatures.h" |
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23 |
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24 |
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25 enum TBTFeaturesPanic |
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26 { |
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27 ERangeTooLarge, |
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28 }; |
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29 |
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30 void FeaturesPanic(TBTFeaturesPanic aPanic) |
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31 { |
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32 _LIT(KPanicText, "BTFeatures"); |
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33 User::Panic(KPanicText, aPanic); |
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34 } |
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35 |
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36 void Panic(THCISharePanic aPanic) |
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37 // Panic due to stack bug. |
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38 { |
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39 User::Panic(KHCISharedPanicName, aPanic); |
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40 } |
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41 |
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42 /** |
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43 Constructor |
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44 Start with no requests to update the required configuration. |
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45 */ |
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46 |
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47 EXPORT_C TBTFeatures::TBTFeatures() |
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48 { |
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49 Init(0); |
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50 } |
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51 |
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52 /** |
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53 Constructor |
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54 Start with request to update the required configuration |
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55 |
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56 @param aFeatures the required bluetooth features |
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57 */ |
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58 |
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59 EXPORT_C TBTFeatures::TBTFeatures(TUint64 aFeatures) |
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60 { |
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61 Init(aFeatures); |
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62 } |
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63 |
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64 |
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65 void TBTFeatures::Init(TUint64 aFeatures) |
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66 { |
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67 const TInt KMaxBit = 7; |
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68 iFeatures.SetMax(); |
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69 for (TInt pos = 0; pos < iFeatures.MaxSize(); pos++) |
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70 { |
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71 TUint8 byte = (pos <= KMaxBit) ? (aFeatures >> (pos * 8)) & 0xff : 0; |
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72 iFeatures[pos] = byte; |
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73 } |
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74 } |
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75 |
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76 TUint32 TBTFeatures::Extract32BitsOffset(TInt aStart, TInt aEnd, TInt aOffset) const |
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77 { |
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78 return Extract32Bits(aStart, aEnd) << aOffset; |
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79 } |
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80 |
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81 TUint32 TBTFeatures::Extract32Bits(TInt aStart, TInt aEnd) const |
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82 { |
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83 __ASSERT_DEBUG(aEnd - aStart <= 32, FeaturesPanic(ERangeTooLarge)); |
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84 TUint32 result =0; |
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85 TInt outOffset = 0; |
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86 for (TInt bit = aStart; bit <= aEnd; bit++) |
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87 { |
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88 result |= (operator[](bit) ? 1<<outOffset : 0); |
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89 outOffset++; |
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90 } |
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91 |
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92 return result; |
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93 } |
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94 |
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95 |
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96 /** |
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97 Subscript operator. |
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98 |
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99 Return an individual bit from BT features |
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100 |
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101 @param aOffset Object to compare to this. |
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102 @return ETrue if the individual bit is 1, otherwise EFalse returned |
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103 */ |
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104 |
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105 EXPORT_C TBool TBTFeatures::operator[](TInt aOffset) const |
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106 { |
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107 TInt byte = aOffset / 8; |
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108 TInt offset = aOffset - (byte * 8); |
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109 return TBool(iFeatures[byte] & (1<<offset)); |
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110 } |
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111 |
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112 |
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113 /** |
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114 Return current link mode set |
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115 |
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116 @return current link mode set |
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117 */ |
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118 |
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119 EXPORT_C TBTLinkModeSet TBTFeatures::LinkModes() const |
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120 { |
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121 return TBTLinkModeSet(Extract32Bits(ESupportedHoldModeBit, ESupportedParkModeBit)); |
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122 } |
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123 |
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124 |
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125 /** |
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126 Return current SCO packets type |
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127 |
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128 @return current SCO packets type |
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129 */ |
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130 EXPORT_C TBTSCOPackets TBTFeatures::SCOPackets() const |
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131 { |
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132 return TBTSCOPackets(Extract32Bits(ESupportedSCOLinkBit, ESupportedHV3PacketsBit) * EPacketsHV1); |
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133 } |
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134 |
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135 /** |
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136 Return current synchronous packet types (SCO and eSCO on v1.2). |
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137 |
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138 @return current synchronous packet types (SCO and eSCO on v1.2). |
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139 */ |
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140 EXPORT_C TBTSyncPacketTypes TBTFeatures::SyncPackets() const |
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141 { |
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142 TBTSyncPacketTypes packets = Extract32Bits(ESupportedSCOLinkBit, ESupportedHV3PacketsBit) | Extract32BitsOffset(ESupportedExtendedSCOLinkBit, ESupportedEV5PacketsBit, 3); |
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143 return packets; |
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144 } |
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145 |
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146 /** |
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147 Return current supported mode |
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148 |
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149 @param aMode specified link modes to compare |
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150 @return ETrue if specified link modes are supported, otherwise EFalse returned |
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151 */ |
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152 EXPORT_C TBool TBTFeatures::IsModeSupported(TBTLinkMode aMode) const |
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153 { |
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154 return LinkModes() & aMode; |
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155 } |
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156 |
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157 /** |
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158 Return whether role switch is supported |
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159 |
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160 @return ETrue if role switch is supported, otherwise EFalse returned |
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161 */ |
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162 EXPORT_C TBool TBTFeatures::IsRoleSwitchSupported() const |
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163 { |
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164 return operator[](ESupportedSwitchBit); |
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165 } |
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166 |
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167 /** |
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168 Return whether encryption is supported |
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169 |
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170 @return ETrue if encryption is supported, otherwise EFalse returned |
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171 */ |
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172 EXPORT_C TBool TBTFeatures::IsEncryptionSupported() const |
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173 { |
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174 return operator[](ESupportedEncryptionBit); |
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175 } |
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176 |
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177 /** |
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178 Return whether Extended Inquiry Response is supported |
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179 |
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180 @return ETrue if Extended Inquiry Response is supported, otherwise EFalse returned |
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181 */ |
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182 EXPORT_C TBool TBTFeatures::IsExtendedInquiryResponseSupported() const |
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183 { |
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184 return operator[](ESupportedExtendedInquiryResponseBit); |
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185 } |
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186 |
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187 /** |
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188 Return whether Read signal strength indication with inquiry is supported |
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189 |
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190 @return ETrue if Read signal strength indication with inquiry is supported, otherwise EFalse returned |
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191 */ |
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192 EXPORT_C TBool TBTFeatures::IsRssiWithInquiryResultsSupported() const |
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193 { |
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194 return operator[](ESupportedRSSIWithInquiryResultsBit); |
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195 } |
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196 |
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197 /** |
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198 Return whether Secure Simple Pairing is supported |
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199 |
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200 @return ETrue if Secure Simple Pairing is supported, otherwise EFalse returned |
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201 */ |
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202 EXPORT_C TBool TBTFeatures::IsSecureSimplePairingSupported() const |
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203 { |
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204 return operator[](ESupportedSecureSimplePairingBit); |
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205 } |
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206 |
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207 /** |
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208 Return whether Encryption Pause and Resume is supported |
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209 |
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210 @return ETrue if Encryption Pause and Resume is supported, otherwise EFalse returned |
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211 */ |
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212 EXPORT_C TBool TBTFeatures::IsEncryptionPauseResumeSupported() const |
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213 { |
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214 return operator[](ESupportedEncryptionPauseResumeBit); |
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215 } |
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216 |
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217 /** |
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218 Return whether SCO link is supported |
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219 |
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220 @return ETrue if SCO link is supported, otherwise EFalse returned |
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221 */ |
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222 EXPORT_C TBool TBTFeatures::IsSCOLinkSupported() const |
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223 { |
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224 return operator[](ESupportedSCOLinkBit); |
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225 } |
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226 |
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227 /** |
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228 Return whether Extended SCO link is supported |
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229 |
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230 @return ETrue if Extended SCO link is supported, otherwise EFalse returned |
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231 */ |
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232 |
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233 EXPORT_C TBool TBTFeatures::IsExtendedSCOLinkSupported() const |
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234 { |
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235 return operator[](ESupportedExtendedSCOLinkBit); |
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236 } |
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237 |
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238 |
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239 |
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240 /** |
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241 Indicate whether a low power mode is allowed |
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242 |
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243 @param aMode Bluetooth SIG specified values for indicating link modes |
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244 @return ETrue if the indicated low power modes are allowed, otherwise return EFalse |
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245 */ |
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246 |
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247 EXPORT_C TBool TLinkPolicy::IsModeAllowed(TBTLinkMode aMode) const |
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248 { |
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249 TBool allowed; |
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250 |
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251 switch (aMode) |
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252 { |
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253 case EHoldMode: |
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254 case ESniffMode: |
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255 case EParkMode: |
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256 allowed = iLowPowerModePolicy & aMode; |
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257 break; |
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258 |
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259 default: |
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260 Panic(EBTUnknownLowPowerMode); |
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261 allowed = EFalse; |
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262 } |
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263 |
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264 return allowed; |
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265 } |
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266 |
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267 /** |
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268 Indicate whether mode switch is allowed |
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269 |
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270 @return ETrue if mode switch is allowed, otherwise return EFalse |
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271 */ |
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272 |
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273 EXPORT_C TBool TLinkPolicy::IsSwitchAllowed() const |
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274 { |
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275 return iSwitchAllowed; |
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276 } |
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277 |
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278 /** |
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279 Set permission or prohibition to a specific low power mode |
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280 |
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281 @param aMode Bluetooth SIG specified values for indicating link modes |
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282 @param aAllowed the permission or prohibition to a specific low power mode |
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283 */ |
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284 |
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285 EXPORT_C void TLinkPolicy::SetModeAllowed(TBTLinkMode aMode, TBool aAllowed) |
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286 { |
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287 switch (aMode) |
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288 { |
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289 case EHoldMode: |
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290 case ESniffMode: |
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291 case EParkMode: |
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292 aAllowed ? iLowPowerModePolicy |= aMode : iLowPowerModePolicy &= ~aMode; |
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293 break; |
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294 |
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295 default: |
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296 Panic(EBTUnknownLowPowerMode); |
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297 } |
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298 } |
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299 |
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300 /** |
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301 Set permission to low power modes |
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302 |
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303 @param aModesAllowed the low power modes to be allowed or not |
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304 */ |
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305 |
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306 EXPORT_C void TLinkPolicy::SetModesAllowed(TUint8 aModesAllowed) |
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307 { |
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308 iLowPowerModePolicy = aModesAllowed; |
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309 } |
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310 |
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311 /** |
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312 Set permission to low power modes switch |
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313 |
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314 @param aAllowed the low power modes switch to be allowed or not |
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315 */ |
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316 |
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317 EXPORT_C void TLinkPolicy::SetSwitchAllowed(TBool aAllowed) |
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318 { |
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319 iSwitchAllowed = aAllowed; |
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320 } |
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321 |
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322 |
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323 /** |
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324 Return current low power mode policy |
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325 |
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326 @return current low power mode policy |
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327 */ |
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328 |
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329 EXPORT_C TUint8 TLinkPolicy::LowPowerModePolicy() const |
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330 { |
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331 return iLowPowerModePolicy; |
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332 } |
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333 |
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334 /** |
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335 Return current link policy |
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336 |
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337 @return current link policy |
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338 */ |
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339 |
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340 EXPORT_C TUint8 TLinkPolicy::LinkPolicy() const |
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341 { |
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342 return static_cast<TUint8>(iSwitchAllowed + (iLowPowerModePolicy << 1)); |
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343 } |
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344 |
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345 |
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346 /** |
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347 Constructor |
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348 Start with default configuration |
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349 */ |
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350 EXPORT_C TBTBasebandLinkState::TBTBasebandLinkState() |
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351 : iLinkState(ELinkDown), |
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352 iAuthenticated(EFalse), |
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353 iEncrypted(EFalse), |
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354 iMode(EActiveMode), |
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355 iRole(ERoleUnknown), |
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356 iPacketTypes(EAnyPacket), |
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357 iMaxSlots(5) |
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358 { |
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359 } |
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360 |
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361 /** |
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362 Set the link state |
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363 |
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364 @param aState link state values |
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365 */ |
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366 EXPORT_C void TBTBasebandLinkState::SetLinkState(TLinkState aState) |
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367 { |
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368 iLinkState = aState; |
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369 } |
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370 |
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371 /** |
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372 Set the authentication state |
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373 |
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374 @param aAuthenticated TBool value indicates whether authentication is allowed or not |
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375 */ |
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376 EXPORT_C void TBTBasebandLinkState::SetAuthenticated(TBool aAuthenticated) |
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377 { |
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378 iAuthenticated = aAuthenticated; |
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379 } |
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380 |
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381 /** |
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382 Set the encryption state |
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383 |
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384 @param aEncrypted TBool value indicates whether encryption is allowed or not |
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385 */ |
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386 EXPORT_C void TBTBasebandLinkState::SetEncrypted(TBool aEncrypted) |
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387 { |
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388 iEncrypted = aEncrypted; |
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389 } |
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390 |
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391 /** |
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392 Set the link mode |
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393 |
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394 @param aMode TBool value indicates the BT link mode |
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395 */ |
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396 EXPORT_C void TBTBasebandLinkState::SetLinkMode(TBTLinkMode aMode) |
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397 { |
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398 iMode = aMode; |
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399 } |
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400 |
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401 /** |
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402 Set the link role |
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403 |
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404 @param aRole Bluetooth SIG specified values for specification of (piconet) role |
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405 */ |
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406 EXPORT_C void TBTBasebandLinkState::SetLinkRole(TBTBasebandRole aRole) |
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407 { |
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408 iRole = aRole; |
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409 } |
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410 |
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411 /** |
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412 Set the packet types |
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413 |
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414 @param aPacketTypes Bluetooth SIG specified packet types |
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415 */ |
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416 EXPORT_C void TBTBasebandLinkState::SetPacketTypes(TUint16 aPacketTypes) |
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417 { |
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418 iPacketTypes = aPacketTypes; |
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419 } |
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420 |
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421 /** |
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422 Set the maximum types |
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423 |
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424 @param aMaxSlots LMP maximum slot |
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425 */ |
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426 EXPORT_C void TBTBasebandLinkState::SetMaxSlots(TUint8 aMaxSlots) |
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427 { |
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428 iMaxSlots = aMaxSlots; |
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429 } |
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430 |
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431 /** |
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432 Return current baseband link state |
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433 |
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434 @return current baseband link state |
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435 */ |
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436 EXPORT_C TBTBasebandLinkState::TLinkState TBTBasebandLinkState::LinkState() const |
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437 { |
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438 return iLinkState; |
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439 } |
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440 |
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441 /** |
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442 Return current authentication status |
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443 |
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444 @return current authentication status |
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445 */ |
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446 EXPORT_C TBool TBTBasebandLinkState::Authenticated() const |
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447 { |
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448 return iAuthenticated; |
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449 } |
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450 |
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451 /** |
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452 Return current encryption status |
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453 |
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454 @return current encryption status |
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455 */ |
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456 EXPORT_C TBool TBTBasebandLinkState::Encrypted() const |
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457 { |
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458 return iEncrypted; |
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459 } |
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460 |
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461 /** |
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462 Return current baseband link state |
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463 |
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464 @return current baseband link state |
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465 */ |
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466 EXPORT_C TBTLinkMode TBTBasebandLinkState::LinkMode() const |
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467 { |
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468 return iMode; |
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469 } |
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470 |
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471 /** |
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472 Return current baseband link role |
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473 |
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474 @return current baseband link role |
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475 */ |
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476 EXPORT_C TBTBasebandRole TBTBasebandLinkState::LinkRole() const |
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477 { |
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478 return iRole; |
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479 } |
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480 |
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481 /** |
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482 Return current baseband packet types |
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483 |
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484 @return current baseband packet types |
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485 */ |
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486 EXPORT_C TUint16 TBTBasebandLinkState::PacketTypes() const |
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487 { |
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488 return iPacketTypes; |
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489 } |
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490 |
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491 /** |
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492 Return current baseband max slots |
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493 |
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494 @return current baseband max slots |
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495 */ |
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496 EXPORT_C TUint8 TBTBasebandLinkState::MaxSlots() const |
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497 { |
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498 return iMaxSlots; |
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499 } |