1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 #include "tavsrcOperations.h" |
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17 |
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18 // The opcodes used internally to CTavsrcOperations |
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19 static const TInt KTavsrcOpCodeConnect = 0x00000001; |
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20 static const TInt KTavsrcOpCodeCancel = 0x00000002; |
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21 static const TInt KTavsrcOpCodeDiscoverSEPs = 0x00000004; |
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22 static const TInt KTavsrcOpCodeCreateBearers = 0x00000008; |
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23 static const TInt KTavsrcOpCodeCloseBearers = 0x00000010; |
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24 static const TInt KTavsrcOpCodeContentProtection = 0x00000020; |
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25 static const TInt KTavsrcOpCodeGetCapabilities = 0x00000040; |
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26 static const TInt KTavsrcOpCodeStartStreams = 0x00000080; |
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27 static const TInt KTavsrcOpCodeSuspendStreams = 0x00000100; |
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28 static const TInt KTavsrcOpCodeEchoStorm = 0x00000200; |
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29 static const TInt KTavsrcOpCodeAbort = 0x00000400; |
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30 static const TInt KTavsrcOpCodeStream = 0x00000800; |
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31 static const TInt KTavsrcOpCodeStreamFaster = 0x00001000; |
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32 static const TInt KTavsrcOpCodeStreamSlower = 0x00002000; |
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33 static const TInt KTavsrcOpCodeAutoStream = 0x00004000; |
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34 static const TInt KTavsrcOpCodeStopStream = 0x00008000; |
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35 static const TInt KTavsrcOpCodeRegisterSEP = 0x00010000; |
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36 static const TInt KTavsrcOpCodeRegisterMultipleSEPs = 0x00020000; |
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37 static const TInt KTavsrcOpCodeStartSrc = 0x00040000; |
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38 static const TInt KTavsrcOpCodeStopSrc = 0x00080000; |
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39 static const TInt KTavsrcOpCodeDisconnectSrc = 0x00100000; |
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40 static const TInt KTavsrcOpCodeConfigureSEP = 0x00200000; |
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41 static const TInt KTavsrcOpCodeReconfigureSEP = 0x00400000; |
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42 static const TInt KTavsrcOpCodePacketDropIoctl = 0x00800000; |
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43 static const TInt KTavsrcOpCodeVolumeUp = 0x01000000; |
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44 static const TInt KTavsrcOpCodeVolumeDown = 0x02000000; |
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45 static const TInt KTavsrcOpCodeBackwards = 0x04000000; |
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46 static const TInt KTavsrcOpCodeForwards = 0x08000000; |
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47 static const TInt KTavsrcOpCodePlay = 0x10000000; |
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48 static const TInt KTavsrcOpCodeStop = 0x20000000; |
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49 static const TInt KTavsrcOpCodeExit = 0x40000000; |
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50 static const TInt KTavsrcOpCodeToggleSafeMode = 0x80000000; |
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51 |
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52 // all the AVRCP opcodes |
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53 static const TInt KTavsrcOpCodeAvrcp = KTavsrcOpCodeVolumeUp | KTavsrcOpCodeVolumeDown | KTavsrcOpCodeBackwards | KTavsrcOpCodeForwards | KTavsrcOpCodePlay | KTavsrcOpCodeStop; |
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54 |
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55 // all always available opcodes |
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56 static const TInt KTavsrcOpCodeAlwaysAvailable = KTavsrcOpCodeAvrcp | KTavsrcOpCodeToggleSafeMode | KTavsrcOpCodeCancel | KTavsrcOpCodeExit | KTavsrcOpCodeStopSrc | KTavsrcOpCodeRegisterSEP | KTavsrcOpCodeRegisterMultipleSEPs; |
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57 |
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58 // all possible opcodes |
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59 static const TInt KTavsrcOpCodeAll = 0xffffffff; |
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60 |
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61 // The next opcodes for every command, 0 means to not change state |
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62 static const TInt KTavsrcOpConnectNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeDiscoverSEPs | KTavsrcOpCodeAutoStream; |
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63 static const TInt KTavsrcOpCancelNextOperations = 0; |
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64 static const TInt KTavsrcOpDiscoverSEPsNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeGetCapabilities; |
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65 static const TInt KTavsrcOpCreateBearersNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeStartStreams | KTavsrcOpCodeCloseBearers; |
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66 static const TInt KTavsrcOpCloseBearersNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeCreateBearers; |
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67 static const TInt KTavsrcOpContentProtectionNextOperations = 0; |
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68 static const TInt KTavsrcOpGetCapabilitiesNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeConfigureSEP; |
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69 static const TInt KTavsrcOpStartStreamsNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeStream | KTavsrcOpCodeCloseBearers | KTavsrcOpCodeSuspendStreams | KTavsrcOpCodeAbort; |
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70 static const TInt KTavsrcOpSuspendStreamsNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeStartStreams | KTavsrcOpCodeAbort | KTavsrcOpCodeReconfigureSEP; |
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71 static const TInt KTavsrcOpEchoStormNextOperations = 0; |
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72 static const TInt KTavsrcOpAbortNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeStartStreams | KTavsrcOpCodeCloseBearers; |
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73 static const TInt KTavsrcOpStreamNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeStopStream | KTavsrcOpCodeCloseBearers | KTavsrcOpCodeSuspendStreams | KTavsrcOpCodeAbort | KTavsrcOpCodeStreamFaster | KTavsrcOpCodeStreamSlower; |
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74 static const TInt KTavsrcOpStreamFasterNextOperations = 0; |
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75 static const TInt KTavsrcOpStreamSlowerNextOperations = 0; |
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76 static const TInt KTavsrcOpAutoStreamNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeStopStream | KTavsrcOpCodeCloseBearers | KTavsrcOpCodeSuspendStreams; |
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77 static const TInt KTavsrcOpStopStreamNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeCloseBearers | KTavsrcOpCodeStream | KTavsrcOpCodeSuspendStreams | KTavsrcOpCodeAbort; |
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78 static const TInt KTavsrcOpRegisterSEPNextOperations = 0; |
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79 static const TInt KTavsrcOpRegisterMultipleSEPsNextOperations = 0; |
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80 static const TInt KTavsrcOpStartSrcNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeConnect; |
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81 static const TInt KTavsrcOpStopSrcNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeStartSrc; |
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82 static const TInt KTavsrcOpDisconnectSrcNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeConnect; |
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83 static const TInt KTavsrcOpConfigureSEPNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeCreateBearers; |
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84 static const TInt KTavsrcOpReconfigureSEPNextOperations = KTavsrcOpCodeAlwaysAvailable | KTavsrcOpCodeDisconnectSrc | KTavsrcOpCodeStartStreams | KTavsrcOpCodeAbort | KTavsrcOpCodeReconfigureSEP; |
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85 static const TInt KTavsrcOpPacketDropIoctlNextOperations = 0; |
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86 static const TInt KTavsrcOpVolumeUpNextOperations = 0; |
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87 static const TInt KTavsrcOpVolumeDownNextOperations = 0; |
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88 static const TInt KTavsrcOpBackwardsNextOperations = 0; |
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89 static const TInt KTavsrcOpForwardsNextOperations = 0; |
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90 static const TInt KTavsrcOpPlayNextOperations = 0; |
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91 static const TInt KTavsrcOpStopNextOperations = 0; |
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92 static const TInt KTavsrcOpExitNextOperations = 0; |
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93 static const TInt KTavsrcOpToggleSafeModeNextOperations = 0; |
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94 |
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95 // TTavsrcOperation |
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96 TTavsrcOperation::TTavsrcOperation(TInt aOpCode, TChar aOperation, TInt aNextOpCodes) |
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97 : iOpCode(aOpCode), iOperation(aOperation), iNextOpCodes(aNextOpCodes) |
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98 { |
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99 } |
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100 |
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101 /*static*/ TBool TTavsrcOperation::OperationMatchesAndAllowed(const TTavsrcOperation& aOpA, const TTavsrcOperation& aOpB) |
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102 { |
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103 return ((aOpA.iOperation == aOpB.iOperation) && (aOpA.iNextOpCodes & aOpB.iOpCode)); |
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104 } |
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105 |
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106 TInt TTavsrcOperation::GetNextOpCodes() const |
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107 { |
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108 return iNextOpCodes; |
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109 } |
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110 |
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111 // CTavsrcOperations |
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112 CTavsrcOperations* CTavsrcOperations::NewL() |
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113 { |
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114 CTavsrcOperations* operations = new (ELeave) CTavsrcOperations; |
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115 CleanupStack::PushL(operations); |
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116 operations->ConstructL(); |
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117 CleanupStack::Pop(operations); |
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118 return operations; |
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119 } |
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120 |
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121 void CTavsrcOperations::ConstructL() |
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122 { |
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123 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeConnect, KTavsrcOpConnect, KTavsrcOpConnectNextOperations)); |
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124 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeCancel, KTavsrcOpCancel, KTavsrcOpCancelNextOperations)); |
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125 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeDiscoverSEPs, KTavsrcOpDiscoverSEPs, KTavsrcOpDiscoverSEPsNextOperations)); |
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126 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeCreateBearers, KTavsrcOpCreateBearers, KTavsrcOpCreateBearersNextOperations)); |
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127 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeCloseBearers, KTavsrcOpCloseBearers, KTavsrcOpCloseBearersNextOperations)); |
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128 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeContentProtection, KTavsrcOpContentProtection, KTavsrcOpContentProtectionNextOperations)); |
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129 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeGetCapabilities, KTavsrcOpGetCapabilities, KTavsrcOpGetCapabilitiesNextOperations)); |
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130 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeStartStreams, KTavsrcOpStartStreams, KTavsrcOpStartStreamsNextOperations)); |
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131 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeSuspendStreams, KTavsrcOpSuspendStreams, KTavsrcOpSuspendStreamsNextOperations)); |
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132 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeEchoStorm, KTavsrcOpEchoStorm, KTavsrcOpEchoStormNextOperations)); |
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133 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeAbort, KTavsrcOpAbort, KTavsrcOpAbortNextOperations)); |
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134 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeStream, KTavsrcOpStream, KTavsrcOpStreamNextOperations)); |
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135 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeStreamFaster, KTavsrcOpStreamFaster, KTavsrcOpStreamFasterNextOperations)); |
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136 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeStreamSlower, KTavsrcOpStreamSlower, KTavsrcOpStreamSlowerNextOperations)); |
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137 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeAutoStream, KTavsrcOpAutoStream, KTavsrcOpAutoStreamNextOperations)); |
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138 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeStopStream, KTavsrcOpStopStream, KTavsrcOpStopStreamNextOperations)); |
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139 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeRegisterSEP, KTavsrcOpRegisterSEP, KTavsrcOpRegisterSEPNextOperations)); |
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140 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeRegisterMultipleSEPs, KTavsrcOpRegisterMultipleSEPs, KTavsrcOpRegisterMultipleSEPsNextOperations)); |
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141 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeStartSrc, KTavsrcOpStartSrc, KTavsrcOpStartSrcNextOperations)); |
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142 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeStopSrc, KTavsrcOpStopSrc, KTavsrcOpStopSrcNextOperations)); |
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143 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeDisconnectSrc, KTavsrcOpDisconnectSrc, KTavsrcOpDisconnectSrcNextOperations)); |
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144 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeConfigureSEP, KTavsrcOpConfigureSEP, KTavsrcOpConfigureSEPNextOperations)); |
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145 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeReconfigureSEP, KTavsrcOpReconfigureSEP, KTavsrcOpReconfigureSEPNextOperations)); |
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146 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodePacketDropIoctl, KTavsrcOpPacketDropIoctl, KTavsrcOpPacketDropIoctlNextOperations)); |
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147 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeVolumeUp, KTavsrcOpVolumeUp, KTavsrcOpVolumeUpNextOperations)); |
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148 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeVolumeDown, KTavsrcOpVolumeDown, KTavsrcOpVolumeDownNextOperations)); |
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149 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeBackwards, KTavsrcOpBackwards, KTavsrcOpBackwardsNextOperations)); |
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150 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeForwards, KTavsrcOpForwards, KTavsrcOpForwardsNextOperations)); |
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151 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodePlay, KTavsrcOpPlay, KTavsrcOpPlayNextOperations)); |
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152 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeStop, KTavsrcOpStop, KTavsrcOpStopNextOperations)); |
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153 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeExit, KTavsrcOpExit, KTavsrcOpExitNextOperations)); |
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154 iOperations.AppendL(TTavsrcOperation(KTavsrcOpCodeToggleSafeMode, KTavsrcOpToggleSafeMode, KTavsrcOpToggleSafeModeNextOperations)); |
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155 |
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156 // tavsrc always starts the src initially |
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157 iLastOperationIndex = GetAllowedOperationIndex(KTavsrcOpStartSrc, KTavsrcOpCodeAll); |
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158 User::LeaveIfError(iLastOperationIndex); |
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159 } |
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160 |
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161 CTavsrcOperations::CTavsrcOperations() |
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162 : iPendingOperationIndex(KErrNotFound), iSafeMode(ETrue) |
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163 { |
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164 } |
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165 |
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166 CTavsrcOperations::~CTavsrcOperations() |
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167 { |
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168 iOperations.Close(); |
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169 } |
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170 |
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171 // Returns the index into iOperations array if aOperation is allowed as the next operation |
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172 // according to aAllowedNextOpcodes or an error |
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173 TInt CTavsrcOperations::GetAllowedOperationIndex(TChar aOperation, TInt aAllowedNextOpcodes) |
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174 { |
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175 TIdentityRelation<TTavsrcOperation> matchFunc(TTavsrcOperation::OperationMatchesAndAllowed); |
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176 return (iOperations.Find(TTavsrcOperation(0, aOperation, aAllowedNextOpcodes), matchFunc)); |
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177 } |
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178 |
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179 TBool CTavsrcOperations::IsOperationAllowed(TChar aOperation) |
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180 { |
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181 TBool ret = EFalse; |
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182 |
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183 if (!SafeMode()) |
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184 { |
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185 // if we are not in safe mode then any operation is allowed |
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186 ret = ETrue; |
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187 } |
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188 else |
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189 { |
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190 ret = (GetAllowedOperationIndex(aOperation, iOperations[iLastOperationIndex].GetNextOpCodes()) >= 0); |
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191 } |
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192 return ret; |
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193 } |
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194 |
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195 TInt CTavsrcOperations::BeginOperation(TChar aOperation) |
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196 { |
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197 TInt rerr = KErrNone; |
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198 |
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199 if ((iPendingOperationIndex >= 0) && (aOperation != KTavsrcOpCancel)) |
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200 { |
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201 // an operation is in progress, block until it has completed |
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202 rerr = KErrNotReady; |
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203 } |
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204 else |
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205 { |
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206 TInt allowedNextOpCodes = iOperations[iLastOperationIndex].GetNextOpCodes(); |
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207 |
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208 if (!SafeMode()) |
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209 { |
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210 // not in safe mode so any operation should be allowed |
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211 allowedNextOpCodes = KTavsrcOpCodeAll; |
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212 } |
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213 |
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214 TInt index = GetAllowedOperationIndex(aOperation, allowedNextOpCodes); |
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215 |
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216 if (index >= 0) |
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217 { |
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218 // we have a valid operation |
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219 iPendingOperationIndex = index; |
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220 } |
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221 else |
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222 { |
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223 // aOperation is not a supported command, return error |
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224 rerr = index; |
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225 } |
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226 } |
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227 return rerr; |
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228 } |
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229 |
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230 void CTavsrcOperations::EndOperation(TChar aOperation, TInt aError) |
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231 { |
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232 // if an error has occured the state hasn't moved on |
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233 if (!aError) |
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234 { |
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235 // check to see if there is an outstanding operation |
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236 if (iPendingOperationIndex < 0) |
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237 { |
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238 // we have no pending operation, this means that the remote has moved our state on, |
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239 // to keep the allowed operations in step pretend that we moved the state on ourselves |
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240 iPendingOperationIndex = GetAllowedOperationIndex(aOperation, KTavsrcOpCodeAll); |
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241 } |
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242 |
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243 // update current state if there is any valid operations in the pending operation |
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244 if (iOperations[iPendingOperationIndex].GetNextOpCodes() != 0) |
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245 { |
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246 iLastOperationIndex = iPendingOperationIndex; |
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247 } |
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248 } |
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249 iPendingOperationIndex = KErrNotFound; |
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250 } |
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251 |
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252 TBool CTavsrcOperations::SafeMode() |
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253 { |
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254 return iSafeMode; |
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255 } |
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256 |
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257 void CTavsrcOperations::SetSafeMode(TBool aSafeMode) |
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258 { |
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259 iSafeMode = aSafeMode; |
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260 } |
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