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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: Requests handler |
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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 |
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20 #include <ecom/ecom.h> |
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21 #include <cusbdevicecontrolplugin.h> |
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22 |
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23 #include "cusbdevcon.h" |
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24 #include "crequestshandler.h" |
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25 #include "debug.h" |
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26 |
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27 // --------------------------------------------------------------------------- |
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28 // Two-phase construction |
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29 // --------------------------------------------------------------------------- |
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30 // |
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31 CRequestsHandler* CRequestsHandler::NewL(RDevUsbcClient& aLdd, |
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32 RUsbWatcher& aUsbWatcher, |
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33 RUsb& aUsbManager) |
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34 { |
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35 |
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36 FLOG( _L( "[USBDEVCON]\tCRequestsHandler::NewL" ) ); |
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37 |
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38 CRequestsHandler* self = new (ELeave) CRequestsHandler(aLdd, aUsbWatcher, aUsbManager); |
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39 CleanupStack::PushL(self); |
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40 self->ConstructL(); |
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41 CleanupStack::Pop(self); |
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42 return self; |
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43 } |
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44 |
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45 // -------------------------------------Handle-------------------------------------- |
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46 // Two-phase construction |
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47 // --------------------------------------------------------------------------- |
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48 // |
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49 void CRequestsHandler::ConstructL() |
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50 { |
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51 |
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52 FLOG( _L( "[USBDEVCON]\tCRequestsHandler::ConstructL" ) ); |
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53 |
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54 // read, construct and attach handlers |
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55 |
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56 RImplInfoPtrArray implementations; |
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57 const TEComResolverParams noResolverParams; |
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58 REComSession::ListImplementationsL(KUsbCMHandlerInterface, noResolverParams, KRomOnlyResolverUid, implementations); |
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59 |
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60 for (TUint i(0); i < implementations.Count(); ++i) |
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61 { |
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62 TUid uid(implementations[i]->ImplementationUid()); |
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63 CUsbCMHandler* handler = (reinterpret_cast<CUsbCMHandler*>(REComSession::CreateImplementationL |
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64 (uid, _FOFF(CUsbCMHandler, iPrivateEComUID)))); |
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65 iHandlers.Append(handler); |
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66 } |
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67 |
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68 implementations.Close(); // cleanup |
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69 |
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70 FTRACE(FPrint( |
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71 _L("[USBDEVCON]\tCRequestsHandler::ConstructL: Amount of handlers attached = %d" ), iHandlers.Count())); |
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72 |
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73 // initialize handlers, pass them iLdd, iUsbWatcher, iUsbManager |
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74 for(TInt i(0); i < iHandlers.Count(); ++i) |
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75 { |
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76 iHandlers[i]->Initialize(iLdd, iUsbWatcher, iUsbManager); |
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77 } |
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78 } |
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79 |
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80 // --------------------------------------------------------------------------- |
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81 // Default construction |
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82 // --------------------------------------------------------------------------- |
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83 // |
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84 CRequestsHandler::CRequestsHandler( RDevUsbcClient& aLdd, |
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85 RUsbWatcher& aUsbWatcher, |
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86 RUsb& aUsbManager) : |
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87 iLdd (aLdd), |
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88 iUsbWatcher(aUsbWatcher), |
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89 iUsbManager(aUsbManager) |
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90 { |
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91 } |
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92 |
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93 // --------------------------------------------------------------------------- |
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94 // Destruction |
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95 // --------------------------------------------------------------------------- |
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96 // |
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97 CRequestsHandler::~CRequestsHandler() |
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98 { |
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99 |
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100 FLOG( _L( "[USBDEVCON]\tCRequestsHandler::~CRequestsHandler()" ) ); |
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101 // destroy handlers |
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102 iHandlers.ResetAndDestroy(); |
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103 |
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104 REComSession::FinalClose(); // plug-ins final cleanup |
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105 |
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106 } |
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107 |
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108 |
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109 // --------------------------------------------------------------------------- |
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110 // Search plugin which can handle the request |
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111 // --------------------------------------------------------------------------- |
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112 // |
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113 TInt CRequestsHandler::Handle(const RBuf8& aSetupPacket, RBuf8& aData) |
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114 { |
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115 |
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116 FLOG( _L( "[USBDEVCON]\tCRequestsHandler::Handle" ) ); |
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117 |
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118 TInt err(KErrNotSupported); |
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119 TUint counter(0); // handlers counter |
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120 |
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121 // loop through handlers, call handle() while error == KErrNotSupported |
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122 while((err == KErrNotSupported) && (counter < iHandlers.Count())) |
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123 { |
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124 err = iHandlers[counter]->Handle(aSetupPacket, aData); |
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125 ++counter; |
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126 } |
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127 |
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128 return err; |
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129 |
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130 } |
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131 |
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132 |
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133 |