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1 /* |
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2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: State, while waiting for requests |
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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 #ifndef CEP0READER_H |
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20 #define CEP0READER_H |
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21 |
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22 #include "cusbdevcon.h" |
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23 |
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24 class CStateMachine; // gets notifications on events happened on EP0 |
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25 |
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26 /** |
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27 * EP0 Reader |
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28 * |
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29 * @lib usbdevcon.lib |
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30 * @since S60 v.5.0 |
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31 */ |
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32 |
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33 class CEP0Reader : public CActive |
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34 { |
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35 |
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36 public: |
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37 |
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38 /** |
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39 * Two-phased constructor. |
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40 * |
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41 * @since S60 v.5.0 |
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42 * @param aObserver Gets notification when Read request is completed |
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43 * @param aLdd Link to services for reading EP0 |
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44 * @return Constructed instance |
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45 */ |
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46 static CEP0Reader* NewL(CStateMachine& aObserver, RDevUsbcClient& aLdd); |
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47 |
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48 /** |
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49 * Destructor. |
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50 * |
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51 * @since S60 v.5.0 |
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52 */ |
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53 virtual ~CEP0Reader(); |
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54 |
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55 /** |
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56 * Set request to read setup packet |
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57 * |
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58 * @since S60 v.5.0 |
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59 */ |
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60 void ReadSetupPacket(); |
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61 |
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62 /** |
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63 * Set request to read EP0 data |
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64 * |
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65 * @since S60 v.5.0 |
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66 * @param aDataLength Max length of data to read |
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67 */ |
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68 void Read(TUint aDataLength); |
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69 |
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70 private: |
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71 |
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72 /** |
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73 * Default construction |
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74 * |
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75 * @since S60 v.5.0 |
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76 * @param aObserver Gets notification when Read request is completed |
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77 * @param aLdd Link to services for reading EP0 |
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78 */ |
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79 CEP0Reader(CStateMachine& aObserver, RDevUsbcClient& aLdd); |
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80 |
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81 /** |
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82 * Two-phased construction. |
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83 * |
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84 */ |
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85 void ConstructL(); |
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86 |
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87 // from CActive |
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88 |
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89 /** |
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90 * From CActive. |
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91 * |
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92 */ |
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93 void RunL(); |
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94 |
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95 /** |
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96 * From CActive. |
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97 * |
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98 */ |
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99 void DoCancel(); |
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100 |
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101 /** |
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102 * From CActive. |
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103 * |
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104 */ |
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105 TInt RunError( TInt /*aError*/ ); |
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106 |
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107 private: // data |
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108 |
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109 /** |
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110 * LDD Logical Device Driver |
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111 * Not own. |
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112 */ |
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113 RDevUsbcClient& iLdd; |
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114 |
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115 /** |
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116 * State machine gets read data |
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117 * Not own. |
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118 */ |
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119 CStateMachine& iObserver; |
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120 |
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121 /** |
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122 * Read buffer |
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123 */ |
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124 RBuf8 iBuffer; |
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125 |
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126 }; |
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127 |
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128 #endif // CEP0READER_H |