1 // Copyright (c) 2004-2010 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "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 |
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18 /** |
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19 @file |
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20 @internalComponent |
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21 @released |
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22 */ |
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23 |
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24 #include <remcon/avrcpspec.h> |
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25 #include <remcon/remconbearerobserver.h> |
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26 #include <remconcoreapi.h> |
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27 |
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28 #include "controlcommand.h" |
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29 #include "avrcpcommandframer.h" |
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30 #include "avrcpincomingcommandhandler.h" |
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31 #include "avrcpinternalinterface.h" |
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32 #include "avrcplog.h" |
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33 #include "avrcprouter.h" |
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34 #include "avrcptimer.h" |
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35 #include "avrcputils.h" |
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36 #include "controlbearer.h" |
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37 #include "passthroughhelper.h" |
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38 #include "mediainformation.h" |
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39 #include "nowplaying.h" |
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40 #include "playerinformation.h" |
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41 #include "remconbattery.h" |
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42 #include "remcongroupnavigation.h" |
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43 |
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44 //------------------------------------------------------------------------------------ |
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45 // Construction/Destruction |
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46 //------------------------------------------------------------------------------------ |
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47 |
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48 /** Factory function. |
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49 |
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50 @param aBearer The CRemConBearerAvrcp this is to handle commands for. |
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51 @param aObserver The observer of the bearer. Used to acquire converters. |
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52 @param aRouter A CRcpRouter to use for communication with remote devices. |
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53 @param aTimer CDeltaTimer to use for queuing timed events. |
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54 @return A fully constructed CRcpIncomingCommandHandler. |
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55 @leave System wide error codes. |
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56 */ |
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57 CRcpIncomingCommandHandler* CRcpIncomingCommandHandler::NewL(MRemConControlCommandInterface& aCommandInterface, |
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58 MRemConBearerObserver& aObserver, |
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59 CRcpRouter& aRouter, |
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60 CDeltaTimer& aTimer, |
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61 CAvrcpPlayerInfoManager& aPlayerInfoManager, |
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62 TBTDevAddr& aDevice) |
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63 { |
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64 LOG_STATIC_FUNC |
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65 CRcpIncomingCommandHandler* handler = new(ELeave)CRcpIncomingCommandHandler(aCommandInterface, aObserver, aRouter, aTimer, aPlayerInfoManager, aDevice); |
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66 CleanupStack::PushL(handler); |
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67 handler->ConstructL(); |
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68 CleanupStack::Pop(handler); |
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69 return handler; |
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70 } |
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71 |
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72 /** Constructor. |
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73 |
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74 @param aBearer The CRemConBearerAvrcp this is to handle commands for. |
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75 @param aObserver The observer of the bearer. Used to aquire converters. |
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76 @param aRouter A CRcpRouter to use for communication with remote devices. |
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77 @param aTimer CDeltaTimer to use for queuing timed events. |
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78 @return A partially constructed CRcpIncomingCommandHandler. |
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79 @leave System wide error codes. |
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80 */ |
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81 CRcpIncomingCommandHandler::CRcpIncomingCommandHandler(MRemConControlCommandInterface& aCommandInterface, |
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82 MRemConBearerObserver& aObserver, |
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83 CRcpRouter& aRouter, |
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84 CDeltaTimer& aTimer, |
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85 CAvrcpPlayerInfoManager& aPlayerInfoManager, |
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86 TBTDevAddr& aDevice) |
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87 : iCommandQueue(_FOFF(CControlCommand, iHandlingLink)) |
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88 , iInternalCommandQueue(_FOFF(CControlCommand, iHandlingLink)) |
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89 , iFragmenter(NULL) |
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90 , iCommandInterface(aCommandInterface) |
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91 , iObserver(aObserver) |
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92 , iRouter(aRouter) |
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93 , iTimer(aTimer) |
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94 , iAddressedMode(EFalse) |
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95 , iPlayerInfoManager(aPlayerInfoManager) |
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96 , iDevice(aDevice) |
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97 { |
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98 LOG_FUNC |
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99 } |
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100 |
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101 void CRcpIncomingCommandHandler::ConstructL() |
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102 { |
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103 LOG_FUNC |
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104 |
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105 iFragmenter = CAVRCPFragmenter::NewL(); |
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106 iPlayerInfoManager.AddObserverL(*this); |
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107 |
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108 RArray<TUint> players; |
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109 iPlayerInfoManager.PlayerListing(players); |
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110 CleanupClosePushL(players); |
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111 |
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112 if(players.Count()) |
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113 { |
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114 // Start out with the first player as default. TSP will need to update |
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115 // us if it wants to set a different one. Note that this wont be used |
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116 // unless we enter addressed mode anyway. |
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117 iClientId = iPlayerInfoManager.ClientL(0); |
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118 } |
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119 // if no player have yet been registered we'll set the default when the |
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120 // first one is |
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121 |
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122 CleanupStack::PopAndDestroy(&players); |
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123 |
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124 iPassthroughHelper = CPassthroughHelper::NewL(iRouter, iCommandInterface, iTimer); |
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125 } |
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126 |
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127 /** Destructor. |
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128 */ |
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129 CRcpIncomingCommandHandler::~CRcpIncomingCommandHandler() |
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130 { |
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131 LOG_FUNC |
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132 |
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133 iCommandInterface.MrccciUnregisterForLocalAddressedClientUpdates(); |
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134 iPlayerInfoManager.RemoveObserver( *this ); |
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135 delete iFragmenter; |
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136 delete iPassthroughHelper; |
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137 |
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138 // All commands should have been handled by the time we reach here. |
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139 __ASSERT_ALWAYS(iCommandQueue.IsEmpty(), AvrcpUtils::Panic(EAvrcpIncomingCommandsNotHandled)); |
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140 __ASSERT_ALWAYS(iInternalCommandQueue.IsEmpty(), AvrcpUtils::Panic(EAvrcpIncomingCommandsNotHandled)); |
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141 } |
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142 |
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143 //--------------------------------------------------------------------- |
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144 // Called from the bearer |
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145 //--------------------------------------------------------------------- |
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146 |
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147 /** Tell the handler to gracefully shutdown. |
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148 |
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149 */ |
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150 void CRcpIncomingCommandHandler::Disconnect() |
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151 { |
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152 LOG_FUNC |
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153 |
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154 iPassthroughHelper->Disconnect(); |
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155 |
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156 if(!iCommandQueue.IsEmpty()) |
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157 { |
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158 // Cleanup remaining commands |
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159 while(!iCommandQueue.IsEmpty()) |
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160 { |
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161 CControlCommand* command = iCommandQueue.First(); |
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162 // Tell RemCon the command is finished with |
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163 iObserver.CommandExpired(command->RemConCommandId()); |
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164 // And now remove the command from the bearer |
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165 iRouter.RemoveFromSendQueue(*command); |
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166 HandledCommand(*command); |
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167 } |
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168 } |
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169 if(!iInternalCommandQueue.IsEmpty()) |
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170 { |
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171 |
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172 // Cleanup remaining commands |
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173 while(!iInternalCommandQueue.IsEmpty()) |
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174 { |
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175 CControlCommand* command = iInternalCommandQueue.First(); |
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176 // Tell RemCon the command is finished with |
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177 iObserver.CommandExpired(command->RemConCommandId()); |
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178 // And now remove the command from the bearer |
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179 iRouter.RemoveFromSendQueue(*command); |
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180 HandledCommand(*command); |
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181 } |
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182 } |
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183 } |
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184 |
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185 //------------------------------------------------------------------------------------ |
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186 // Called by router |
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187 //------------------------------------------------------------------------------------ |
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188 |
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189 void CRcpIncomingCommandHandler::MaxPacketSize(TInt /*aMtu*/) |
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190 { |
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191 // ignore - we don't care if we use AVCTP fragmentation on the |
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192 // control channel |
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193 } |
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194 |
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195 /** Receive an incoming AVRCP command. |
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196 |
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197 The command is parsed from a CAVCFrame into a CControlCommand owned by the |
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198 command handler. |
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199 |
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200 @param aFrame The AVC frame contained within the AVCTP message. |
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201 @param aTransactionLabel AVCTP transaction label for this command. |
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202 @param aAddr The bluetooth device from which this command originated. |
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203 @leave System Wide Error code |
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204 */ |
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205 void CRcpIncomingCommandHandler::ReceiveCommandL(const TDesC8& aMessageInformation, |
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206 SymbianAvctp::TTransactionLabel aTransactionLabel, |
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207 const TBTDevAddr& aAddr) |
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208 { |
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209 LOG_FUNC |
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210 |
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211 TUint id = iCommandInterface.MrcciNewTransactionId(); |
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212 |
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213 // If there's nothing beyond a header this is bobs. Dump it now. |
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214 if(aMessageInformation.Length() <= KAVCFrameHeaderLength) |
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215 { |
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216 User::Leave(KErrCorrupt); |
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217 } |
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218 |
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219 // Parse it out into an AV/C frame |
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220 CAVCFrame* frame = CAVCFrame::NewL(aMessageInformation, AVC::ECommand); |
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221 |
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222 CControlCommand* command = CControlCommand::NewL(frame, id, aTransactionLabel, aAddr, iAddressedMode ? iClientId : KNullClientId, &AvrcpPlayerInfoManager()); |
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223 CleanupStack::PushL(command); |
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224 |
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225 TInt result = command->ParseIncomingCommandL(iObserver, *iFragmenter); |
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226 CleanupStack::Pop(command); |
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227 |
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228 command->IncrementUsers(); |
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229 |
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230 switch(result) |
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231 { |
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232 case KErrAvrcpHandledInternallyInformRemCon: |
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233 { |
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234 HandleRemConCommand(*command); |
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235 iRouter.AddToSendQueue(*command); |
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236 command->DecrementUsers(); |
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237 break; |
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238 } |
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239 case KErrNone: |
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240 { |
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241 if(! command->IsPassthrough()) |
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242 { |
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243 // add to iCommandQueue for non-passthrough commands |
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244 iCommandQueue.AddLast(*command); |
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245 } |
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246 HandleRemConCommand(*command); |
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247 break; |
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248 } |
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249 case KErrAvrcpInternalCommand: |
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250 { |
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251 iInternalCommandQueue.AddLast(*command); |
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252 HandleInternalCommand(*command); |
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253 break; |
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254 } |
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255 case KErrAvrcpInvalidCType: |
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256 { |
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257 // We should ignore commands with invalid ctype (AV/C v4.0 8.3.1). |
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258 command->DecrementUsers(); |
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259 break; |
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260 } |
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261 default: |
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262 { |
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263 Respond(*command, result); |
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264 command->DecrementUsers(); |
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265 break; |
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266 } |
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267 } |
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268 } |
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269 |
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270 /** Called from the router to indicate send completion. |
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271 |
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272 @param aCommand The command that has been sent. |
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273 @param aSendResult KErrNone if the command was sent successfully. System wide |
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274 error code otherwise. |
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275 */ |
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276 void CRcpIncomingCommandHandler::MessageSent(CAvrcpCommand& /*aCommand*/, TInt /*aSendResult*/) |
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277 { |
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278 LOG_FUNC |
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279 // We try and send the response, but if we fail there's not a lot we can do about |
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280 // it. Just let the remote assume the response. |
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281 } |
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282 |
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283 //------------------------------------------------------------------------------------ |
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284 // Called by bearer |
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285 //------------------------------------------------------------------------------------ |
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286 |
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287 /** Send a response. |
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288 |
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289 @param aInterfaceUid The RemCon interface this response is from. |
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290 @param aId The RemCon transaction label of the command to respond to. |
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291 @param aData The command response data. |
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292 @return KErrNone. |
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293 */ |
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294 TInt CRcpIncomingCommandHandler::SendRemConResponse(TUid /*aInterfaceUid*/, TUint aId, RBuf8& aData) |
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295 { |
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296 LOG_FUNC |
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297 |
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298 // We always take ownership of the response data in SendResponse, so we |
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299 // always return KErrNone. |
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300 SendResponse(iCommandQueue, aId, aData); |
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301 return KErrNone; |
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302 } |
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303 |
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304 void CRcpIncomingCommandHandler::SendReject(TUid aInterfaceUid, TUint aId) |
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305 { |
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306 LOG_FUNC |
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307 |
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308 TDblQueIter<CControlCommand> iter(iCommandQueue); |
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309 CControlCommand* command = NULL; |
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310 |
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311 while (iter) |
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312 { |
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313 command = iter++; |
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314 if(command->RemConCommandId() == aId) |
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315 { |
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316 TInt err = KErrGeneral; |
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317 if (aInterfaceUid.iUid == KRemConMediaInformationApiUid || aInterfaceUid.iUid == KRemConPlayerInformationUid) |
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318 { |
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319 err = KErrAvrcpMetadataInternalError; |
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320 } |
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321 |
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322 Respond(*command, err); |
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323 |
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324 HandledCommand(*command); |
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325 } |
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326 } |
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327 } |
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328 |
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329 //------------------------------------------------------------------------------------ |
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330 // MPlayerChangeObserver functions |
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331 //------------------------------------------------------------------------------------ |
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332 void CRcpIncomingCommandHandler::MpcoAvailablePlayersChanged() |
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333 { |
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334 LOG_FUNC |
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335 |
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336 TDblQueIter<CControlCommand> internalIter(iInternalCommandQueue); |
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337 CControlCommand* command = NULL; |
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338 TInt err = KErrNone; |
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339 |
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340 while(internalIter) |
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341 { |
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342 command = internalIter++; |
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343 if((command->RemConInterfaceUid() == TUid::Uid(KUidAvrcpInternalInterface)) && (command->RemConOperationId() == EAvrcpInternalAvailablePlayersNotification)) |
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344 { |
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345 // If this fails we cann't send the notification - just give up |
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346 err = HandleRegisterAvailablePlayersNotification(*command); |
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347 static_cast<void>(err = err); // ignore this error (i.e. give up). |
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348 } |
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349 } |
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350 //register internal notification |
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351 //still need to optimize for avoid re-registering notification |
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352 RArray<TUint> players; |
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353 err = iPlayerInfoManager.PlayerListing(players); |
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354 |
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355 if(err == KErrNone) |
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356 { |
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357 TBool currentClientAvailable = EFalse; |
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358 |
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359 for(TInt i = 0 ; i < players.Count() ; i++) |
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360 { |
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361 TRemConClientId clientId = 0; |
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362 clientId = iPlayerInfoManager.Client(players[i]); |
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363 if(clientId == iClientId) |
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364 { |
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365 currentClientAvailable = ETrue; |
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366 } |
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367 } |
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368 |
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369 if((iClientId == KNullClientId || !currentClientAvailable) && players.Count()) |
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370 { |
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371 // If this is the first target client we set our default client id |
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372 // to this |
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373 iClientId = iPlayerInfoManager.Client(players[0]); |
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374 } |
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375 } |
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376 |
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377 players.Close(); |
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378 } |
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379 |
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380 void CRcpIncomingCommandHandler::MpcoAddressedPlayerChangedLocally(TRemConClientId aClientId) |
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381 { |
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382 LOG_FUNC |
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383 |
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384 TRAP_IGNORE(AddressedPlayerChangedL(aClientId)); |
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385 } |
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386 |
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387 void CRcpIncomingCommandHandler::MpcoUidCounterChanged(TRemConClientId aClientId) |
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388 { |
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389 LOG_FUNC |
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390 |
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391 CControlCommand* command; |
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392 if(aClientId == iClientId) |
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393 { |
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394 command = FindNotify(iInternalCommandQueue, TUid::Uid(KUidAvrcpInternalInterface),EAvrcpInternalUidChangedNotification); |
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395 if(command) |
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396 { |
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397 // if we fail to send an update it is effectively the same condition |
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398 // as when the notification arrives after the controller uses the |
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399 // old UID counter |
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400 TInt err = HandleUidChangedNotification(*command); |
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401 |
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402 if(err != KErrNone) |
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403 { |
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404 Respond(*command, KErrAvrcpAirInternalError); |
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405 HandledCommand(*command); |
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406 } |
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407 } |
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408 } |
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409 } |
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410 |
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411 //------------------------------------------------------------------------------------ |
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412 // Internal command handling functions |
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413 //------------------------------------------------------------------------------------ |
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414 |
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415 |
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416 /** Sends a response to the remote device. |
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417 |
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418 Because of the 100ms timeout for responses we send a response to |
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419 passthrough commands as soon as we receive them. This means the real |
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420 response from RemCon is currently ignored. A real response is |
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421 only sent if this is a vendor dependent command. |
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422 |
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423 @param aCommand The command to respond to. |
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424 @param aErr The result of handling the command. KErrNone if successful. |
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425 KErrNotSupported if this operation is not supported. |
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426 */ |
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427 void CRcpIncomingCommandHandler::Respond(CControlCommand& aCommand, TInt aErr) |
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428 { |
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429 LOG_FUNC |
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430 aCommand.SetResponseType(aErr); |
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431 iRouter.AddToSendQueue(aCommand); |
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432 } |
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433 |
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434 /** To be called on completion of command handling. |
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435 |
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436 This aggregates the handler's tidying up of a finished |
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437 command. |
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438 |
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439 @param aCommand The command to tidy up. |
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440 */ |
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441 void CRcpIncomingCommandHandler::HandledCommand(CControlCommand& aCommand) |
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442 { |
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443 LOG_FUNC |
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444 aCommand.CancelTimer(iTimer); |
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445 aCommand.iHandlingLink.Deque(); |
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446 aCommand.DecrementUsers(); |
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447 } |
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448 |
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449 void CRcpIncomingCommandHandler::HandleInternalCommand(CControlCommand& aCommand) |
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450 { |
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451 LOG_FUNC |
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452 |
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453 TUid interfaceUid; |
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454 TUint id; |
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455 TUint operationId; |
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456 RBuf8 commandData; |
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457 TBTDevAddr addr; |
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458 |
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459 aCommand.GetCommandInfo(interfaceUid, id, operationId, commandData, addr); |
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460 |
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461 __ASSERT_DEBUG(interfaceUid == TUid::Uid(KUidAvrcpInternalInterface), AvrcpUtils::Panic(EAvrcpInternalHandlingRequestedOnWrongInterface)); |
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462 |
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463 TInt err = KErrNone; |
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464 switch(operationId) |
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465 { |
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466 case EAvrcpInternalSetAddressedPlayer: |
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467 { |
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468 err = HandleSetAddressedPlayer(id, commandData); |
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469 break; |
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470 } |
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471 case EAvrcpInternalAvailablePlayersNotification: |
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472 { |
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473 err = HandleRegisterAvailablePlayersNotification(aCommand); |
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474 break; |
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475 } |
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476 case EAvrcpInternalAddressedPlayerNotification: |
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477 { |
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478 err = HandleRegisterAddressedPlayerNotification(aCommand); |
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479 break; |
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480 } |
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481 case EAvrcpInternalUidChangedNotification: |
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482 { |
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483 err = HandleUidChangedNotification(aCommand); |
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484 break; |
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485 } |
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486 }; |
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487 |
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488 if(err != KErrNone) |
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489 { |
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490 Respond(aCommand, KErrAvrcpAirInternalError); |
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491 HandledCommand(aCommand); |
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492 } |
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493 |
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494 commandData.Close(); |
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495 } |
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496 |
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497 void CRcpIncomingCommandHandler::HandleRemConCommand(CControlCommand& aCommand) |
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498 { |
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499 LOG_FUNC |
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500 |
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501 if(aCommand.IsPassthrough()) |
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502 { |
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503 // This deals with button press/release stuff, |
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504 // queues the command and responds |
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505 iPassthroughHelper->HandlePassthrough(aCommand); |
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506 } |
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507 else |
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508 { |
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509 // can go directly to client (unlike passthrough which may need to map 2 commands to 1 click |
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510 if (aCommand.Frame().Type() == AVC::ENotify) |
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511 { |
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512 iCommandInterface.MrccciNewNotifyCommand(aCommand, aCommand.ClientId()); |
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513 } |
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514 else |
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515 { |
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516 iCommandInterface.MrcciNewCommand(aCommand, aCommand.ClientId()); |
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517 } |
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518 } |
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519 } |
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520 |
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521 TInt CRcpIncomingCommandHandler::HandleSetAddressedPlayer(TUint aId, RBuf8& aCommandData) |
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522 { |
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523 LOG_FUNC |
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524 |
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525 // Once we respond to this we've told the remote that we're using a particular player |
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526 EnterAddressedMode(); |
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527 |
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528 // SetAddressedPlayer involves not just responding to this command but |
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529 // also rejecting a bunch of notifies and completing the addressed player |
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530 // changed notify. We try as hard as we can to ensure our state remains |
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531 // consistent with the view of the remote. |
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532 |
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533 // Allocate the response buffer for the SetAddressedPlayer command first |
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534 RBuf8 responseBuf; |
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535 TInt err = responseBuf.Create(KSetAddressedPlayerResponseSize); |
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536 if(err == KErrNone) |
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537 { |
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538 // Now we know we can at least try and send a response to the remote |
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539 // do the other gubbins, which we can cope with failing |
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540 TRAPD(setResult, DoHandleSetAddressedPlayerL(aCommandData)); |
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541 |
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542 switch(setResult) |
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543 { |
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544 case KErrNotFound: |
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545 { |
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546 RAvrcpIPCError errorResponse; |
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547 errorResponse.iError = KErrAvrcpAirInvalidPlayerId; |
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548 |
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549 // Can ignore this as we know we have allocated a big enough buffer |
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550 TRAP_IGNORE(errorResponse.WriteL(responseBuf)); |
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551 break; |
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552 } |
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553 case KErrNone: |
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554 default: |
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555 // For any result other than KErrNotFound we managed to set the |
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556 // addressed client. Other errors indicate a failure in sending |
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557 // a changed response to the AddressedPlayerChanged notify. Even |
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558 // if we failed sending a changed response we should have been |
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559 // able to reject the outstanding notify so we are in a consistent |
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560 // state |
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561 { |
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562 RAvrcpSetAddressedPlayerResponse response; |
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563 response.iStatus = AvrcpStatus::ESuccess; |
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564 |
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565 // Can ignore this as we know we have allocated a big enough buffer |
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566 TRAP_IGNORE(response.WriteL(responseBuf)); |
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567 |
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568 iCommandInterface.MrccciSetAddressedClient(iClientId); |
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569 break; |
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570 } |
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571 }; |
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572 |
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573 SendInternalResponse(aId, responseBuf); |
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574 responseBuf.Close(); |
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575 } |
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576 |
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577 return err; |
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578 } |
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579 |
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580 void CRcpIncomingCommandHandler::DoHandleSetAddressedPlayerL(RBuf8& aCommandData) |
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581 { |
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582 LOG_FUNC |
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583 |
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584 RAvrcpSetAddressedPlayerRequest request; |
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585 request.ReadL(aCommandData); |
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586 |
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587 TRemConClientId clientId = iPlayerInfoManager.ClientL(request.iPlayerId); |
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588 AddressedPlayerChangedL(clientId); |
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589 } |
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590 |
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591 void CRcpIncomingCommandHandler::AddressedPlayerChangedL(TRemConClientId aClientId) |
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592 { |
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593 LOG_FUNC |
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594 |
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595 if(aClientId == iClientId) |
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596 { |
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597 return; |
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598 } |
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599 |
|
600 iClientId = aClientId; |
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601 |
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602 TDblQueIter<CControlCommand> iter(iCommandQueue); |
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603 CControlCommand* command = NULL; |
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604 |
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605 // Complete player specific notifications |
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606 while(iter) |
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607 { |
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608 command = iter++; |
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609 if(command->PlayerSpecificNotify()) |
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610 { |
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611 iObserver.CommandExpired(command->RemConCommandId()); |
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612 |
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613 Respond(*command, KErrAvrcpAirAddressedPlayerChanged); |
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614 |
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615 HandledCommand(*command); |
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616 } |
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617 } |
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618 |
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619 command = FindNotify(iInternalCommandQueue, TUid::Uid(KUidAvrcpInternalInterface),EAvrcpInternalAddressedPlayerNotification); |
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620 if(command) |
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621 { |
|
622 User::LeaveIfError(HandleRegisterAddressedPlayerNotification(*command)); |
|
623 } |
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624 } |
|
625 |
|
626 TInt CRcpIncomingCommandHandler::HandleRegisterAvailablePlayersNotification(CControlCommand& aCommand) |
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627 { |
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628 LOG_FUNC |
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629 |
|
630 RBuf8 responseBuf; |
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631 TRAPD(err, DoHandleRegisterAvailablePlayersNotificationL(responseBuf, aCommand)); |
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632 |
|
633 if(err == KErrNone) |
|
634 { |
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635 SendInternalResponse(aCommand.RemConCommandId(), responseBuf); |
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636 } |
|
637 |
|
638 responseBuf.Close(); |
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639 return err; |
|
640 } |
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641 |
|
642 void CRcpIncomingCommandHandler::DoHandleRegisterAvailablePlayersNotificationL(RBuf8& aResponseData, CControlCommand& aCommand) |
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643 { |
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644 LOG_FUNC |
|
645 |
|
646 RAvrcpIPCError response; |
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647 response.iError = KErrNone; |
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648 |
|
649 if(DuplicateNotify(iInternalCommandQueue, aCommand)) |
|
650 { |
|
651 response.iError = KErrAvrcpAirInvalidCommand; |
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652 } |
|
653 |
|
654 aResponseData.CreateL(KRegisterNotificationEmptyResponseSize); |
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655 CleanupClosePushL(aResponseData); |
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656 |
|
657 response.WriteL(aResponseData); |
|
658 CleanupStack::Pop(); |
|
659 } |
|
660 |
|
661 TInt CRcpIncomingCommandHandler::HandleRegisterAddressedPlayerNotification(CControlCommand& aCommand) |
|
662 { |
|
663 LOG_FUNC |
|
664 |
|
665 // Once we respond to this we've told the remote that we're using a particular player |
|
666 EnterAddressedMode(); |
|
667 |
|
668 RBuf8 responseBuf; |
|
669 TRAPD(err, DoHandleRegisterAddressedPlayerNotificationL(responseBuf, aCommand)); |
|
670 |
|
671 if(!err) |
|
672 { |
|
673 SendInternalResponse(aCommand.RemConCommandId(), responseBuf); |
|
674 } |
|
675 |
|
676 responseBuf.Close(); |
|
677 return err; |
|
678 } |
|
679 |
|
680 void CRcpIncomingCommandHandler::DoHandleRegisterAddressedPlayerNotificationL(RBuf8& aResponseData, CControlCommand& aCommand) |
|
681 { |
|
682 LOG_FUNC |
|
683 |
|
684 RAvrcpAddressedPlayerNotificationResponse response; |
|
685 RAvrcpIPCError rejectResponse; |
|
686 |
|
687 if(DuplicateNotify(iInternalCommandQueue, aCommand)) |
|
688 { |
|
689 aResponseData.CreateL(KRegisterNotificationEmptyResponseSize); |
|
690 rejectResponse.iError = KErrAvrcpAirInvalidCommand; |
|
691 CleanupClosePushL(aResponseData); |
|
692 rejectResponse.WriteL(aResponseData); |
|
693 } |
|
694 else |
|
695 { |
|
696 // Tricky situation thinking.Reject if at this moment the client just be shut down |
|
697 TRAPD(err, response.iPlayerId = iPlayerInfoManager.PlayerL(iClientId)); |
|
698 if(err != KErrNone) |
|
699 { |
|
700 aResponseData.CreateL(KRegisterNotificationEmptyResponseSize); |
|
701 rejectResponse.iError = KErrAvrcpAirInvalidCommand; |
|
702 CleanupClosePushL(aResponseData); |
|
703 rejectResponse.WriteL(aResponseData); |
|
704 } |
|
705 else |
|
706 { |
|
707 // This line will never leave once the previous line pass |
|
708 response.iUidCounter = iPlayerInfoManager.UidCounterL(iClientId); |
|
709 aResponseData.CreateL(KRegisterNotificationAddressedPlayerResponseSize); |
|
710 CleanupClosePushL(aResponseData); |
|
711 response.WriteL(aResponseData); |
|
712 } |
|
713 } |
|
714 |
|
715 CleanupStack::Pop(); |
|
716 } |
|
717 |
|
718 TInt CRcpIncomingCommandHandler::HandleUidChangedNotification(CControlCommand& aCommand) |
|
719 { |
|
720 LOG_FUNC |
|
721 |
|
722 // Although we haven't strictly told the remote which player we're using this is |
|
723 // a 1.4 command, and implies use of a specific player so switch into addressed mode |
|
724 EnterAddressedMode(); |
|
725 |
|
726 RBuf8 responseBuf; |
|
727 TUint16 uidCounter = 0; |
|
728 TRAPD(err, uidCounter = iPlayerInfoManager.UidCounterL(iClientId)); |
|
729 |
|
730 if(err == KErrNone && !DuplicateNotify(iInternalCommandQueue, aCommand)) |
|
731 { |
|
732 TRAP(err, DoHandleUidChangedNotificationL(responseBuf, uidCounter)); |
|
733 } |
|
734 |
|
735 if(err == KErrNone) |
|
736 { |
|
737 SendInternalResponse(aCommand.RemConCommandId(), responseBuf); |
|
738 } |
|
739 |
|
740 responseBuf.Close(); |
|
741 return err; |
|
742 } |
|
743 |
|
744 void CRcpIncomingCommandHandler::DoHandleUidChangedNotificationL(RBuf8& aResponseData, TUint16 aUidCounter) |
|
745 { |
|
746 LOG_FUNC |
|
747 |
|
748 RAvrcpUidCounterNotificationResponse response; |
|
749 response.iUidCounter = aUidCounter; |
|
750 aResponseData.CreateL(KRegisterNotificationUidChangedResponseSize); |
|
751 CleanupClosePushL(aResponseData); |
|
752 response.WriteL(aResponseData); |
|
753 CleanupStack::Pop(); |
|
754 } |
|
755 |
|
756 void CRcpIncomingCommandHandler::SendInternalResponse(TUint aId, RBuf8& aData) |
|
757 { |
|
758 LOG_FUNC |
|
759 |
|
760 SendResponse(iInternalCommandQueue, aId, aData); |
|
761 } |
|
762 |
|
763 /** |
|
764 This function always takes responsibility for the response. |
|
765 */ |
|
766 void CRcpIncomingCommandHandler::SendResponse(TDblQue<CControlCommand>& aCommandQueue, TUint aId, RBuf8& aData) |
|
767 { |
|
768 LOG_FUNC |
|
769 |
|
770 TDblQueIter<CControlCommand> iter(aCommandQueue); |
|
771 CControlCommand* command = NULL; |
|
772 |
|
773 while (iter) |
|
774 { |
|
775 command = iter++; |
|
776 if(command->RemConCommandId() == aId) |
|
777 { |
|
778 TInt err = command->ProcessOutgoingResponse(iObserver, aData, *iFragmenter); |
|
779 |
|
780 if(command->Frame().Type() == AVC::ENotify) |
|
781 { |
|
782 // If the interim response was successful then create a new command |
|
783 // to contain the final response when it arrives. The same command |
|
784 // cannot be re-used as we may not have finished sending this before |
|
785 // we get the final response. We won't have both the commands on |
|
786 // the handling queue at one time though, so there is no ambiguity |
|
787 // about which is which. We finish handling the interim response here. |
|
788 if(err == KErrNone) |
|
789 { |
|
790 // Try creating the CControlCommand which will be used for the |
|
791 // final response to the Notify. If it fails then we will just |
|
792 // reject the notify straight away. |
|
793 // |
|
794 // To start with we set its AV/C frame to be an Interim response, |
|
795 // since this will match the AV/C frame of the original CControlCommand |
|
796 // once we send the interim response later in this function. |
|
797 CControlCommand* finalResponse = NULL; |
|
798 TRAP(err, finalResponse = command->InterimResponseL()); |
|
799 |
|
800 if(err == KErrNone) |
|
801 { |
|
802 finalResponse->IncrementUsers(); |
|
803 aCommandQueue.AddLast(*finalResponse); |
|
804 } |
|
805 } |
|
806 |
|
807 if(err != KErrNone && command->NormalCommand()) |
|
808 { |
|
809 // If we had an unsuucessful interim response, we need to remove the command from remcon |
|
810 iObserver.CommandExpired(aId); |
|
811 } |
|
812 } |
|
813 |
|
814 Respond(*command, err); |
|
815 HandledCommand(*command); |
|
816 break; // Exit while (iter) loop |
|
817 } |
|
818 } |
|
819 |
|
820 // Either we have created a response which took ownership of aData, or |
|
821 // we didn't match a command, so this was a response to something we've |
|
822 // already removed from our queue. We're telling RemCon that we dealt ok |
|
823 // with this so we have resonsibility for tidying up the data. |
|
824 aData.Close(); |
|
825 } |
|
826 |
|
827 void CRcpIncomingCommandHandler::EnterAddressedMode() |
|
828 { |
|
829 iAddressedMode = ETrue; |
|
830 iCommandInterface.MrccciRegisterForLocalAddressedClientUpdates(); |
|
831 } |
|
832 |
|
833 TBool CRcpIncomingCommandHandler::DuplicateNotify(TDblQue<CControlCommand>& aCommandQueue, const CControlCommand& aCommand) const |
|
834 { |
|
835 TUid interfaceUid = aCommand.RemConInterfaceUid(); |
|
836 TUint operationId = aCommand.RemConOperationId(); |
|
837 |
|
838 CControlCommand* command = NULL; |
|
839 TDblQueIter<CControlCommand> iter(aCommandQueue); |
|
840 TInt count = 0; |
|
841 TBool duplicate = EFalse; |
|
842 |
|
843 while(iter) |
|
844 { |
|
845 command = iter++; |
|
846 if((interfaceUid == command->RemConInterfaceUid())&&(operationId == command->RemConOperationId())) |
|
847 { |
|
848 count++; |
|
849 // this should be a reject if we've already got a notification outstanding |
|
850 if(count > 1) |
|
851 { |
|
852 duplicate = ETrue; |
|
853 break; |
|
854 } |
|
855 } |
|
856 } |
|
857 |
|
858 return duplicate; |
|
859 } |
|
860 |
|
861 CControlCommand* CRcpIncomingCommandHandler::FindNotify(TDblQue<CControlCommand>& aCommandQueue, TUid aInterfaceUid, TUint aOperationId) |
|
862 { |
|
863 CControlCommand* command = NULL; |
|
864 TDblQueIter<CControlCommand> iter(aCommandQueue); |
|
865 TBool found = EFalse; |
|
866 |
|
867 while(iter) |
|
868 { |
|
869 command = iter++; |
|
870 |
|
871 if((command->RemConInterfaceUid() == aInterfaceUid)&&(command->RemConOperationId() == aOperationId)) |
|
872 { |
|
873 found = ETrue; |
|
874 break; |
|
875 } |
|
876 } |
|
877 |
|
878 return found ? command : NULL; |
|
879 } |
|