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1 /* |
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2 Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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3 All rights reserved. |
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4 |
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5 This program and the accompanying materials are made available |
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6 under the terms of the Eclipse Public License v1.0 which accompanies |
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7 this distribution, and is available at |
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8 http://www.eclipse.org/legal/epl-v10.html |
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9 |
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10 Initial Contributors: |
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11 Nokia Corporation - initial contribution. |
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12 |
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13 Contributors: |
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14 */ |
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15 |
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16 #ifndef USBCONTROLXFERIF_H |
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17 #define USBCONTROLXFERIF_H |
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18 |
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19 #include <e32def.h> // General types definition |
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20 |
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21 /** |
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22 * Callback interfaces that used to process packet received from Host |
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23 * and interfaces through which that PIL or app can send request to PSL |
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24 */ |
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25 NONSHARABLE_CLASS(MControlTransferIf) |
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26 { |
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27 public: |
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28 // Interface for RX |
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29 // Transfer direction from Device to Host |
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30 // This two interface is saying PSL had finished |
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31 // sending those data to host. |
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32 virtual void ProcessDataInPacket(TInt aCount,TInt aErrCode) = 0; |
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33 virtual void ProcessStatusInPacket(TInt aErrCode) = 0; |
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34 |
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35 // Transfer direction from Host to Device |
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36 // they are saying that some data had been recieved from host |
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37 virtual void ProcessDataOutPacket(TInt aCount,TInt aErrCode) = 0; |
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38 virtual void ProcessStatusOutPacket(TInt aErrCode) = 0; |
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39 virtual void ProcessSetupPacket(TInt aCount,TInt aErrCode) = 0; |
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40 |
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41 // Interface for TX and Control |
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42 // Data/Status transfer function |
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43 virtual TInt ProcessSetupEndpointZeroRead() = 0; |
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44 virtual TInt ProcessSetupEndpointZeroWrite(const TUint8* aBuffer, TInt aLength, TBool aZlpReqd=EFalse) = 0; |
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45 virtual TInt ProcessSendEp0ZeroByteStatusPacket() = 0; |
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46 virtual TInt ProcessStallEndpoint(TInt aRealEndpoint) = 0; |
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47 |
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48 // Flow control interface |
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49 // In case of we can not deliver received packet(setup or data) to a registered client |
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50 // (because the request callback is not ready), we need PSL stop reporting more packet |
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51 // to PIL until the pending packet had been process. |
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52 // this 2 functions is used to notify PSL: you can continue, the pending packet is proceed. |
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53 virtual void ProcessEp0SetupPacketProceed() = 0; |
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54 virtual void ProcessEp0DataPacketProceed() = 0; |
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55 }; |
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56 |
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57 #endif //USBCONTROLXFERIF_H |
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58 |
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59 // End of file |
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60 |