1 // Copyright (c) 2004-2009 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 // avrcpcommands.cpp |
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15 // |
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16 |
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17 |
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18 |
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19 /** |
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20 @file |
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21 @internalComponent |
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22 @released |
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23 */ |
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24 |
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25 #include <e32base.h> |
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26 #include <remcon/remconbearerobserver.h> |
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27 #include <remcon/remconconverterplugin.h> |
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28 #include <remcon/messagetype.h> |
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29 #include <remconbeareravrcp.h> |
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30 |
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31 #include "browsecommand.h" |
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32 #include "avrcpinternalinterface.h" |
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33 #include "avrcplog.h" |
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34 #include "avrcputils.h" |
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35 #include "browsingframe.h" |
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36 #include "mediabrowse.h" |
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37 #include "nowplaying.h" |
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38 |
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39 |
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40 //--------------------------------------------------------------------- |
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41 // Incoming command construction |
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42 //--------------------------------------------------------------------- |
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43 |
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44 /** Factory function. |
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45 |
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46 @param aFrame The frame this command is to represent. |
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47 @param aRemConId The RemCon transaction label. |
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48 @param aTransLabel The AVCTP transaction label. |
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49 @param aAddr The bluetooth address to send this command to. |
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50 @return A fully constructed CBrowseCommand. |
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51 @leave System wide error codes. |
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52 */ |
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53 CBrowseCommand* CBrowseCommand::NewL(const TDesC8& aMessageInformation, |
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54 TUint aRemConId, |
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55 SymbianAvctp::TTransactionLabel aTransLabel, |
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56 const TBTDevAddr& aAddr, |
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57 CAvrcpPlayerInfoManager* aPlayerInfoManager) |
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58 { |
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59 LOG_STATIC_FUNC |
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60 CBrowseCommand* command = new(ELeave)CBrowseCommand(aRemConId, aTransLabel, aAddr, aPlayerInfoManager); |
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61 CleanupStack::PushL(command); |
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62 command->ConstructL(aMessageInformation); |
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63 CleanupStack::Pop(command); |
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64 return command; |
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65 } |
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66 |
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67 /** Constructor. |
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68 |
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69 @param aFrame The AV/C frame this command is to represent. |
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70 @param aRemConId The RemCon transaction label. |
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71 @param aTransLabel The AVCTP transaction label. |
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72 @param aAddr The bluetooth address to send this command to. |
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73 @return A partially constructed CBrowseCommand. |
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74 @leave System wide error codes. |
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75 */ |
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76 CBrowseCommand::CBrowseCommand(TUint aRemConId, |
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77 SymbianAvctp::TTransactionLabel aTransLabel, |
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78 const TBTDevAddr& aAddr, |
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79 CAvrcpPlayerInfoManager* aPlayerInfoManager) |
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80 : CAvrcpCommand(aRemConId, aTransLabel, aAddr) |
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81 { |
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82 LOG_FUNC |
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83 iPlayerInfoManager = aPlayerInfoManager; |
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84 } |
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85 |
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86 /** Destructor. |
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87 */ |
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88 CBrowseCommand::~CBrowseCommand() |
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89 { |
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90 LOG_FUNC |
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91 __ASSERT_DEBUG(iUsers == 0, AvrcpUtils::Panic(EAvrcpCommandStillInUse)); |
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92 iFrame.Close(); |
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93 iCommandData.Close(); |
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94 } |
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95 |
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96 /** Second phase construction. |
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97 */ |
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98 void CBrowseCommand::ConstructL(const TDesC8& aMessageInformation) |
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99 { |
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100 iFrame.CreateL(aMessageInformation); |
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101 } |
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102 |
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103 //------------------------------------------------------------------------------------ |
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104 // Called by router |
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105 //------------------------------------------------------------------------------------ |
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106 |
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107 SymbianAvctp::TMessageType CBrowseCommand::MessageType() const |
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108 { |
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109 return SymbianAvctp::EResponse; |
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110 } |
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111 |
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112 //------------------------------------------------------------------------------------ |
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113 // Called by handlers |
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114 //------------------------------------------------------------------------------------ |
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115 |
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116 /** Fills in command info from iFrame. |
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117 |
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118 This must be called by the command handler before processing this |
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119 command. |
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120 |
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121 This functions sets iInterfaceUid, iOperationId and iCommandData |
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122 to the correct values according to iFrame. The format of iCommandData |
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123 is defined by RemCon and is dependent on iInterfaceUid and iOperationId. |
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124 |
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125 @return KErrNone If the frame has been parsed successfully. |
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126 @return KErrNotSupported This frame represents a command for which a |
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127 RemCon converter or client side interface |
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128 cannot be found. |
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129 @return KErrAvrcpInvalidCType The CType specified in this frame is invalid. |
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130 @return KErrCorrupt If the frame is corrupted(e.g invalid Operation Id). |
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131 @return System wide error code. |
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132 */ |
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133 TInt CBrowseCommand::ProcessIncomingCommandL(TInt aMaxResponse) |
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134 { |
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135 LOG_FUNC |
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136 TInt result = KErrNotSupported; |
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137 iMaxResponse = aMaxResponse-5; |
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138 |
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139 // This command has already been verified as containing at least a header |
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140 // and an accurate length field |
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141 switch(AvrcpBrowsing::BrowsingFrame::PduId(iFrame)) // PDU ID |
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142 { |
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143 case AvrcpBrowsing::ESetBrowsedPlayer: |
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144 { |
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145 result = HandleSetBrowsedPlayer(); |
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146 break; |
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147 } |
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148 case AvrcpBrowsing::EGetFolderItems: |
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149 { |
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150 result = HandleGetFolderItems(); |
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151 break; |
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152 } |
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153 case AvrcpBrowsing::EChangePath: |
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154 { |
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155 result = HandleChangePath(); |
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156 break; |
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157 } |
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158 case AvrcpBrowsing::EGetItemAttributes: |
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159 { |
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160 result = HandleGetItemAttributes(); |
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161 break; |
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162 } |
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163 case AvrcpBrowsing::ESearch: |
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164 { |
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165 result = HandleSearch(); |
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166 break; |
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167 } |
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168 case AvrcpBrowsing::EGeneralReject: |
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169 // We only support the target role for browsing, so we should |
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170 // never receive a General Reject |
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171 // fallthrough |
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172 default: |
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173 { |
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174 result = HandleUnknownPdu(); |
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175 } |
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176 }; |
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177 return result; |
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178 } |
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179 |
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180 |
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181 /** Processes an outgoing response. |
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182 |
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183 This should only be called for vendor dependent commands as |
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184 we respond to passthrough commands internally. |
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185 |
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186 @param aFrame The command data for the response. |
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187 */ |
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188 void CBrowseCommand::ProcessOutgoingResponse(RBuf8& aCommandData) |
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189 { |
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190 __ASSERT_DEBUG(( (iInterfaceUid == TUid::Uid(KRemConMediaBrowseApiUid)) |
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191 || (iInterfaceUid == TUid::Uid(KRemConNowPlayingApiUid)) |
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192 || (iInterfaceUid == TUid::Uid(KUidAvrcpInternalInterface))), |
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193 AvrcpUtils::Panic(EAvrcpResponseToUnknownCommand)); |
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194 |
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195 iFrame.Close(); |
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196 iFrame.Assign(aCommandData); |
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197 TInt length = aCommandData.Length() - 3; |
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198 iFrame[1] = length >> 8; |
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199 iFrame[2] = length; |
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200 aCommandData.Assign(NULL); |
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201 } |
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202 |
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203 /** Set the response type in the AV/C frame. |
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204 |
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205 @param aErr The result of processing the operation. KErrNone if |
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206 successful. KErrNotsupported if this operation is not |
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207 implemented, eg because no converter was found. |
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208 */ |
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209 void CBrowseCommand::SetResult(TInt aErr) |
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210 { |
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211 LOG_FUNC |
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212 switch(aErr) |
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213 { |
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214 case KErrNone: |
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215 break; |
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216 case KErrCorrupt: |
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217 case EAvrcpResponseToUnknownCommand: |
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218 case KErrAvrcpAirInvalidCommand: |
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219 case KErrAvrcpAirInvalidParameter: |
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220 case KErrAvrcpAirParameterNotFound: |
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221 case KErrAvrcpAirInternalError: |
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222 case KErrAvrcpAirSuccess: |
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223 case KErrAvrcpAirUidChanged: |
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224 case KErrAvrcpAirReserved: |
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225 case KErrAvrcpAirInvalidDirection: |
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226 case KErrAvrcpAirNotADirectory: |
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227 case KErrAvrcpAirDoesNotExist: |
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228 case KErrAvrcpAirInvalidScope: |
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229 case KErrAvrcpAirRangeOutOfBounds: |
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230 case KErrAvrcpAirUidIsADirectory: |
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231 case KErrAvrcpAirMediaInUse: |
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232 case KErrAvrcpAirNowPlayingListFull: |
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233 case KErrAvrcpAirSearchNotSupported: |
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234 case KErrAvrcpAirSearchInProgress: |
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235 case KErrAvrcpAirInvalidPlayerId: |
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236 case KErrAvrcpAirPlayerNotBrowesable: |
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237 case KErrAvrcpAirPlayerNotAddressed: |
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238 case KErrAvrcpAirNoValidSearchResults: |
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239 case KErrAvrcpAirNoAvailablePlayers: |
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240 case KErrAvrcpAirAddressedPlayerChanged: |
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241 case KErrAvrcpInvalidScope: |
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242 { |
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243 // If this fails we can't send the error response - just give up |
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244 TRAPD(err, GenerateRejectPayloadL(aErr)); |
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245 err = err; // Avoid warning about not using it. |
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246 break; |
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247 } |
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248 } |
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249 } |
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250 |
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251 /** Gets this command's frame. |
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252 @return the browse frame for this command |
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253 */ |
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254 const TDesC8& CBrowseCommand::Data() const |
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255 { |
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256 LOG_FUNC |
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257 return iFrame; |
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258 } |
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259 |
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260 const TDesC8& CBrowseCommand::CommandData() const |
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261 { |
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262 LOG_FUNC |
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263 return iCommandData; |
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264 } |
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265 |
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266 void CBrowseCommand::GenerateRejectPayloadL(TInt aErr) |
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267 { |
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268 LOG_FUNC; |
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269 |
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270 TUint8 pduId = AvrcpBrowsing::BrowsingFrame::PduId(iFrame); |
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271 RRemConMediaErrorResponse errResponse; |
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272 errResponse.iPduId = pduId; |
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273 errResponse.iStatus = RAvrcpIPC::SymbianErrToStatus(aErr); |
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274 |
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275 RBuf8 frame; |
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276 frame.CreateL(KBrowseResponseBaseLength); |
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277 CleanupClosePushL(frame); |
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278 errResponse.WriteL(frame); |
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279 CleanupStack::Pop(&frame); |
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280 |
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281 iFrame.Close(); |
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282 iFrame.Assign(frame); |
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283 } |
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284 |
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285 |
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