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1 // Copyright (c) 2008-2009 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 @internalComponent |
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18 */ |
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19 |
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20 #ifndef CPTPIPDATACONTINER_H_ |
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21 #define CPTPIPDATACONTINER_H_ |
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22 |
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23 #include "ptpipdatatypes.h" |
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24 |
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25 /** |
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26 Defines the MTP PTPIP device class generic container dataset. |
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27 This will contain a data payload which will have the actual mtp data. |
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28 |
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29 The structure would be as follows: |
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30 1. packet length 4 bytes |
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31 2. packet size 4 bytes |
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32 3. payload = mtp data. |
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33 |
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34 */ |
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35 class CPTPIPDataContainer : public CMTPTypeCompoundBase |
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36 { |
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37 public: |
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38 |
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39 /** |
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40 PTPIP operation request dataset element identifiers. |
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41 */ |
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42 enum TElements |
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43 { |
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44 EPacketLength, |
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45 EPacketType, |
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46 ETransactionId, |
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47 EPayload, |
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48 ENumElements |
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49 }; |
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50 |
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51 public: |
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52 IMPORT_C static CPTPIPDataContainer* NewL(); |
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53 IMPORT_C ~CPTPIPDataContainer(); |
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54 |
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55 IMPORT_C MMTPType* Payload() const; |
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56 IMPORT_C void SetPayloadL(MMTPType* aPayload); |
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57 IMPORT_C TInt FirstWriteChunk(TPtr8& aChunk); |
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58 IMPORT_C MMTPType* CommitChunkL(TPtr8& aChunk); |
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59 |
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60 public: |
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61 // From MMTPType |
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62 IMPORT_C TUint Type() const; |
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63 |
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64 private: |
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65 // From CMTPTypeCompoundBase |
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66 |
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67 const TElementInfo& ElementInfo(TInt aElementId ) const; |
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68 |
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69 private: |
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70 CPTPIPDataContainer( ); |
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71 void ConstructL( ); |
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72 |
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73 private: |
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74 |
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75 /** |
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76 Data chunk identifiers. |
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77 */ |
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78 enum TChunkIds |
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79 { |
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80 /** |
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81 The flat data chunk ID. |
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82 */ |
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83 EIdFlatChunk, |
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84 |
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85 /** |
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86 The EMTPExtensions element data chunk ID. |
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87 */ |
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88 EIdPayloadChunk, |
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89 |
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90 /** |
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91 The number of data chunks. |
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92 */ |
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93 EIdNumChunks |
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94 }; |
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95 |
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96 /** |
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97 The flat data chunk comprising the header elements EPacketLength, EPacketType and the transaction Id |
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98 */ |
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99 RMTPTypeCompoundFlatChunk iChunkHeader; |
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100 |
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101 /** |
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102 The dataset element metadata table content. |
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103 */ |
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104 static const CMTPTypeCompoundBase::TElementInfo iElementMetaData[]; |
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105 |
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106 /** |
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107 The dataset element metadata table. |
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108 */ |
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109 const TFixedArray<TElementInfo, ENumElements> iElementInfo; |
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110 |
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111 /** |
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112 The size in bytes of the header data chunk. |
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113 */ |
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114 static const TUint KFlatChunkSize; |
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115 |
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116 private: |
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117 MMTPType* iPayload; // Not owned |
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118 |
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119 // If the Initiator sends the data in this form, |
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120 // | ptp header| content part1 | ptp header | content part2 | |
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121 // But,mtp framework gives us the payload as | content part1 | content part2 | |
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122 // thus we need to ignore the ptp header that comes second time onwards. |
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123 TInt iIsNextHeader; |
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124 |
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125 |
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126 |
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127 }; |
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128 |
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129 #endif /*CPTPIPCONTINERDATA_H_*/ |