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1 // Copyright (c) 2007-2009 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 // 0 |
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15 // |
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16 // |
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17 |
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18 /** |
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19 @publishedAll |
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20 @released |
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21 @file |
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22 */ |
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23 |
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24 #include <utf.h> |
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25 #include <bluetooth/logger.h> |
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26 #include "bttypes.h" |
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27 |
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28 #ifdef __FLOG_ACTIVE |
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29 _LIT8(KLogComponent, LOG_COMPONENT_BTLIB); |
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30 #endif |
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31 |
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32 void Panic(TEirWrapperPanics aCode) |
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33 { |
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34 User::Panic(KEirWrapperPanicName, aCode); |
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35 } |
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36 |
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37 |
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38 // Size of 16/128 bit UUIDs in bytes |
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39 const TUint8 KSizeOf16BitUUID = 2; |
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40 const TUint8 KSizeOf128BitUUID = 16; |
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41 |
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42 // Size of TxPowerLevel data in bytes |
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43 #define KSizeOfTxPowerLevelData 1 |
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44 |
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45 |
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46 /** |
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47 Constructs an TBluetoothNameRecordWrapper object from an TNameRecord object. |
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48 The reference of aNameRecord is stored in the object. |
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49 This will contain sensible data only if KHostResEir was used in the Inquiry |
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50 @param aNameRecord for Device Name and Extended Inquiry Response |
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51 */ |
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52 EXPORT_C TBluetoothNameRecordWrapper::TBluetoothNameRecordWrapper(const TNameRecord& aNameRecord) |
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53 : iEirCodec(aNameRecord) |
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54 { |
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55 LOG_FUNC |
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56 } |
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57 |
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58 /** |
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59 Obtain the Device Name from inquiry response. This may be a complete or partial name depending on what is available. |
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60 @param aName is where the Device Name converted into Unicode format is to be stored |
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61 @param aIsComplete indicates whether the name is complete or partial. |
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62 @return an error code (KErrNotFound means no name is present in this EIR packet) |
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63 */ |
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64 EXPORT_C TInt TBluetoothNameRecordWrapper::GetDeviceName(TDes16& aName, TBool& aIsComplete) const |
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65 { |
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66 LOG_FUNC |
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67 TPtrC8 name; |
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68 aIsComplete = EFalse; |
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69 TInt error = iEirCodec.GetDeviceName(name); |
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70 if(error >= KErrNone) |
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71 { |
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72 if(error == EDataComplete) |
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73 |
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74 { |
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75 aIsComplete = ETrue; |
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76 } |
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77 } |
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78 |
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79 if(error >= KErrNone) |
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80 { |
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81 error = CnvUtfConverter::ConvertToUnicodeFromUtf8(aName, name); |
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82 } |
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83 |
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84 // in case of an error from GetData or conversion, return null name and mark it's partial |
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85 if(error != KErrNone) |
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86 { |
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87 // indicate client the name is partial to invite a name request. |
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88 aIsComplete = EFalse; |
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89 aName.Zero(); |
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90 } |
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91 |
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92 return error; |
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93 } |
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94 |
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95 /** |
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96 Retrieve the full list of UUIDs contained in this EIR. Please note that all types of UUID will be merged together in the single array. |
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97 @param aUuidContainer CUuidContainer object where all UUIDs found are to be stored, including 16, 32 and 128 bit uuids |
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98 @return an error code |
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99 */ |
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100 EXPORT_C TInt TBluetoothNameRecordWrapper::GetServiceClassUuids(RExtendedInquiryResponseUUIDContainer& aEIRContainer) const |
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101 { |
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102 LOG_FUNC |
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103 TPtrC8 uuids; |
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104 TInt error = KErrNone; |
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105 // 16 bit UUID |
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106 error = iEirCodec.GetData(EEirUUID16Complete, uuids); |
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107 if(error != KErrNone) |
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108 { |
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109 // can't find complete tag, try partial one |
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110 error = iEirCodec.GetData(EEirUUID16Partial, uuids); |
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111 // find partial tag, set uuid |
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112 // or we can't find either parital or complete tag, no 16 bit uuid exists in this eir packet |
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113 // set complete to partial, this indicates the client there might be uuids in sdp database, |
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114 // so client might want to do a sdp service discovery. |
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115 aEIRContainer.SetCompleteness(RExtendedInquiryResponseUUIDContainer::EUUID16, EFalse); |
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116 if(error == KErrNone) |
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117 { |
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118 // Add the uuid into the container |
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119 error = AddUuids16(aEIRContainer, uuids); |
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120 } |
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121 else |
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122 { |
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123 // can't find either parital or complete tag, no 16 bit uuid exists in this eir packet |
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124 // set complete to partial, this indicates the client there might be uuids in sdp database, |
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125 // so client might want to do a sdp service discovery. |
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126 aEIRContainer.SetCompleteness(RExtendedInquiryResponseUUIDContainer::EUUID16, EFalse); |
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127 error = KErrNone; |
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128 } |
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129 } |
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130 else |
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131 { |
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132 // find complete tag, set uuid |
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133 aEIRContainer.SetCompleteness(RExtendedInquiryResponseUUIDContainer::EUUID16, ETrue); |
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134 // Add the uuid into the container |
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135 error = AddUuids16(aEIRContainer, uuids); |
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136 } |
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137 |
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138 // 128 bit UUID |
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139 if(error == KErrNone) |
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140 { |
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141 // There hasn't been any error in previous adding 16 bit UUID action |
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142 error = iEirCodec.GetData(EEirUUID128Complete, uuids); |
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143 if(error != KErrNone) |
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144 { |
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145 // can't find complete tag, try partial one |
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146 error = iEirCodec.GetData(EEirUUID128Partial, uuids); |
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147 // find partial tag, set uuid |
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148 // or we can't find either parital or complete tag, no 128 bit uuid exists in this eir packet. |
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149 // set complete to partial, this indicates the client there might be uuids in sdp database, |
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150 // so client might want to do a sdp service discovery. |
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151 aEIRContainer.SetCompleteness(RExtendedInquiryResponseUUIDContainer::EUUID128, EFalse); |
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152 if(error == KErrNone) |
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153 { |
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154 // Add the uuid into the container |
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155 error = AddUuids128(aEIRContainer, uuids); |
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156 } |
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157 else |
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158 { |
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159 // can't find either parital or complete tag, no 128 bit uuid exists in this eir packet. |
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160 // set complete to partial, this indicates the client there might be uuids in sdp database, |
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161 // so client might want to do a sdp service discovery. |
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162 aEIRContainer.SetCompleteness(RExtendedInquiryResponseUUIDContainer::EUUID128, EFalse); |
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163 error = KErrNone; |
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164 } |
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165 } |
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166 else |
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167 { |
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168 // find complete tag, set uuid |
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169 aEIRContainer.SetCompleteness(RExtendedInquiryResponseUUIDContainer::EUUID128, ETrue); |
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170 // Add the uuid into the container |
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171 error = AddUuids128(aEIRContainer, uuids); |
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172 } |
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173 } |
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174 |
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175 return error; |
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176 } |
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177 |
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178 /** |
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179 Retrieve the vendor specific data from this EIR. |
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180 @param aDest Array where the vendor specific data is to be stored |
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181 @return An error code (KErrNotFound means no Manufacturer Specific Data is present in this EIR packet) |
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182 */ |
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183 EXPORT_C TInt TBluetoothNameRecordWrapper::GetVendorSpecificData(TDes8& aVendorSpecificData) const |
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184 { |
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185 LOG_FUNC |
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186 TPtrC8 vendorSpecificData; |
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187 TInt error = iEirCodec.GetData(EEirVendorSpecific, vendorSpecificData); |
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188 if(error != KErrNone) |
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189 { |
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190 vendorSpecificData.Set(KNullDesC8()); |
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191 } |
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192 else |
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193 { |
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194 aVendorSpecificData.Copy(vendorSpecificData); |
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195 } |
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196 return error; |
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197 } |
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198 |
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199 /** |
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200 Retrieve the Transmission Power Level from EIR. |
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201 @param aTxPowerLevel where the Transmission Power Level from this EIR is to be stored |
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202 @return an error code (KErrNotFound means no Transmission Power Level is present in this EIR packet) |
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203 */ |
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204 EXPORT_C TInt TBluetoothNameRecordWrapper::GetTxPowerLevel(TInt8& aTxPowerLevel) const |
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205 { |
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206 LOG_FUNC |
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207 TPtrC8 txPowerLevelPtr; |
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208 TInt error = iEirCodec.GetData(EEirTxPowerLevel, txPowerLevelPtr); |
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209 // if txPowerLevelPtr is longer than 1 byte, error KErrCorrupt |
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210 if(error == KErrNone && (txPowerLevelPtr.Length() != KSizeOfTxPowerLevelData)) |
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211 { |
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212 error = KErrCorrupt; |
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213 } |
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214 else if(error == KErrNone && (txPowerLevelPtr.Length() == KSizeOfTxPowerLevelData)) |
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215 { |
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216 aTxPowerLevel = static_cast <TInt8>(txPowerLevelPtr[0]); |
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217 } |
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218 else |
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219 { |
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220 aTxPowerLevel = 0; |
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221 } |
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222 return error; |
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223 } |
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224 |
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225 /** |
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226 Obtain the Flags from EIR if present. |
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227 @param aFlags a descriptor where the Flags is to be stored |
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228 @return an error code (KErrNotFound means no Flags is present in this EIR packet) |
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229 */ |
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230 EXPORT_C TInt TBluetoothNameRecordWrapper::GetFlags(TDes8& aFlags) const |
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231 { |
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232 LOG_FUNC |
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233 TPtrC8 flags; |
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234 TInt error = iEirCodec.GetData(EEirFlags, flags); |
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235 if(error != KErrNone) |
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236 { |
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237 flags.Set(KNullDesC8()); |
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238 } |
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239 else |
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240 { |
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241 aFlags.Copy(flags); |
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242 error = KErrNone; |
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243 } |
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244 return error; |
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245 } |
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246 |
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247 /** |
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248 Obtain the length for Device Name in EIR if present. |
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249 This function should be called before GetDeviceName() to initialize size of the buffer, |
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250 whose reference will be passed into GetDeviceName() as an argument. |
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251 @return the length of Device Name |
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252 */ |
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253 EXPORT_C TInt TBluetoothNameRecordWrapper::GetDeviceNameLength() const |
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254 { |
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255 LOG_FUNC |
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256 TPtrC8 name; |
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257 TInt ret = iEirCodec.GetDeviceName(name); |
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258 if(ret >= KErrNone) |
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259 { |
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260 ret = name.Length(); |
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261 } |
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262 else |
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263 { |
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264 ret = 0; |
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265 } |
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266 return ret; |
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267 } |
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268 |
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269 /** |
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270 Obtain the length for Manufacturer Specific Data in EIR if present. |
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271 This function should be called before GetVendorSpecificData() to initialize size of the buffer, |
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272 whose reference will be passed into GetVendorSpecificData() as an argument. |
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273 @return the length of Manufacturer Specific Data |
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274 */ |
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275 EXPORT_C TInt TBluetoothNameRecordWrapper::GetVendorSpecificDataLength() const |
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276 { |
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277 LOG_FUNC |
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278 TPtrC8 vendorSpecificData; |
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279 TInt ret = iEirCodec.GetData(EEirVendorSpecific, vendorSpecificData); |
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280 if(ret == KErrNone) |
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281 { |
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282 ret = vendorSpecificData.Length(); |
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283 } |
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284 else |
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285 { |
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286 ret = 0; |
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287 } |
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288 return ret; |
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289 } |
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290 |
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291 /** |
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292 Obtain the length for Flags in EIR if present. |
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293 This function should be called before GetFlags() to initialize size of the buffer, |
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294 whose reference will be passed into GetFlags() as an argument. |
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295 @return the length of Flags |
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296 */ |
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297 EXPORT_C TInt TBluetoothNameRecordWrapper::GetFlagsLength() const |
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298 { |
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299 LOG_FUNC |
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300 TPtrC8 flags; |
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301 TInt ret = iEirCodec.GetData(EEirFlags, flags); |
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302 if(ret == KErrNone) |
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303 { |
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304 ret = flags.Length(); |
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305 } |
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306 else |
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307 { |
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308 ret = 0; |
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309 } |
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310 return ret; |
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311 } |
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312 |
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313 TInt TBluetoothNameRecordWrapper::AddUuids16(RExtendedInquiryResponseUUIDContainer& aEIRContainer, TPtrC8& aUuids) const |
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314 { |
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315 TInt error = KErrNone; |
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316 TInt length = aUuids.Length() / KSizeOf16BitUUID; |
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317 TUUID uuid; |
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318 |
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319 for(TInt i = 0; i < length; i++) |
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320 { |
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321 __ASSERT_DEBUG(((aUuids.Length() - i*KSizeOf16BitUUID)% KSizeOf16BitUUID) == 0, Panic(EEirBadUuid16List)); |
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322 TRAP(error, uuid.SetFromLittleEndianL(aUuids.Mid(i*KSizeOf16BitUUID, KSizeOf16BitUUID))); |
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323 if(error == KErrNone) |
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324 { |
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325 error = aEIRContainer.UUIDs().Add(uuid); |
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326 } |
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327 else |
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328 { |
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329 break; |
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330 } |
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331 } |
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332 |
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333 return error; |
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334 } |
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335 |
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336 TInt TBluetoothNameRecordWrapper::AddUuids128(RExtendedInquiryResponseUUIDContainer& aEIRContainer, TPtrC8& aUuids) const |
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337 { |
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338 TInt error = KErrNone; |
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339 TInt length = aUuids.Length() / KSizeOf128BitUUID; |
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340 TUUID uuid; |
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341 |
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342 for(TInt i = 0; i < length; i++) |
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343 { |
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344 __ASSERT_DEBUG(((aUuids.Length() - i*KSizeOf128BitUUID)% KSizeOf128BitUUID) == 0, Panic(EEirBadUuid128List)); |
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345 TRAP(error, uuid.SetFromLittleEndianL(aUuids.Mid(i*KSizeOf128BitUUID, KSizeOf128BitUUID))); |
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346 if(error == KErrNone) |
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347 { |
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348 error = aEIRContainer.UUIDs().Add(uuid); |
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349 } |
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350 else |
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351 { |
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352 break; |
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353 } |
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354 } |
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355 |
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356 return error; |
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357 } |