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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 the License "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 @file |
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18 @internalComponent |
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19 */ |
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20 |
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21 #ifndef USBDI_CHANNEL_H |
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22 #define USBDI_CHANNEL_H |
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23 |
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24 class DUsbInterface; |
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25 class DUsbPageList; |
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26 |
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27 /** |
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28 Logical Device (factory class) for USBDI |
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29 */ |
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30 NONSHARABLE_CLASS(DUsbdiFactory) : public DLogicalDevice |
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31 { |
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32 public: |
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33 DUsbdiFactory(); |
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34 ~DUsbdiFactory(); |
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35 |
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36 private: |
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37 // Inherited from DLogicalDevice |
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38 virtual TInt Install(); |
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39 virtual void GetCaps(TDes8& aDes) const; |
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40 virtual TInt Create(DLogicalChannelBase*& aChannel); |
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41 }; |
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42 |
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43 |
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44 NONSHARABLE_CLASS(DUsbdiChannel) : public DLogicalChannelBase |
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45 { |
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46 public: |
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47 DUsbdiChannel(); |
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48 |
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49 TInt DoCreate(TInt aUnit, const TDesC8* aInfo, const TVersion& aVer); |
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50 TInt Request(TInt aReqNo, TAny* a1, TAny* a2); |
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51 |
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52 virtual void CloseChannel(); |
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53 |
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54 private: |
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55 ~DUsbdiChannel(); |
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56 TInt Close(); |
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57 |
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58 TInt AllocChunk(TInt aRequestSize, TInt* aChunkHandle, TInt* aOffset); |
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59 void CloseChunk(); |
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60 |
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61 TInt HandleControl(TInt aReqNo, TAny* a1, TAny* a2); |
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62 TInt HandleRequest(TInt aReqNo, TRequestStatus* aReq, TAny* a1, TAny* a2); |
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63 TInt HandleCancel(TUint aCancelMask); |
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64 |
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65 private: |
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66 DUsbInterface* iInterface; |
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67 DUsbPageList* iPageList; // Owns the shared chunk |
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68 }; |
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69 |
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70 #endif |