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