kernel/eka/include/drivers/usbdi_hub.h
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     1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of the License "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 //
       
    15 
       
    16 /**
       
    17  @file
       
    18  @internalComponent
       
    19 */
       
    20 
       
    21 #ifndef USBDI_HUB_H
       
    22 #define USBDI_HUB_H
       
    23 
       
    24 class DUsbHubDriver;
       
    25 class DUsbDevice;
       
    26 
       
    27 
       
    28 const TUint32 KFunctionDriverFrameworkSid = 0x10282B48;
       
    29 
       
    30 /**
       
    31   Logical Device (factory class) for USB Hub Driver
       
    32 */
       
    33 class DUsbHubDriverFactory : public DLogicalDevice
       
    34 	{
       
    35 public:
       
    36 	DUsbHubDriverFactory();
       
    37 	~DUsbHubDriverFactory();
       
    38 private:
       
    39 	//	Inherited from DLogicalDevice
       
    40 	virtual TInt Install();
       
    41 	virtual void GetCaps(TDes8& aDes) const;
       
    42 	virtual TInt Create(DLogicalChannelBase*& aChannel);
       
    43 	};
       
    44 
       
    45 /**
       
    46 */
       
    47 class DUsbHubDriverChannel : public DLogicalChannel
       
    48 	{
       
    49 public:
       
    50 	DUsbHubDriverChannel();
       
    51 	virtual ~DUsbHubDriverChannel();
       
    52 	virtual TInt SendMsg(TMessageBase* aMsg);
       
    53 
       
    54 private:
       
    55 	// Panic reasons
       
    56 	enum TPanic
       
    57 		{
       
    58 		ERequestAlreadyPending = 1
       
    59 		};
       
    60 	
       
    61 	//	Inherited from DObject
       
    62 	virtual TInt DoCreate(TInt aUnit, const TDesC8* anInfo, const TVersion& aVer);
       
    63 
       
    64 	// Inherited from DLogicalChannel
       
    65 	virtual void HandleMsg(TMessageBase* aMsg);
       
    66 
       
    67 	// Implementation for the differnt kinds of messages sent through RBusLogicalChannel
       
    68 	TInt DoControl(TInt aFunction, TAny* a1, TAny* a2);
       
    69 	TInt DoRequest(TInt aReqNo, TRequestStatus* aStatus, TAny* a1, TAny* a2);
       
    70 	void DoCancel(TUint aMask);
       
    71 	TInt SendControl(TMessageBase* aMsg);
       
    72 	TInt SendRequest(TMessageBase* aMsg);
       
    73 
       
    74 	DUsbDevice* GetDeviceFromHandle(TAny* aSrc);
       
    75 		
       
    76 private:
       
    77 	DUsbHubDriver*	iHubDriver;
       
    78 	DThread*		iClient;
       
    79 	};
       
    80 
       
    81 #endif // USBDI_HUB_H
       
    82