usbmgmt/usbmgr/device/classdrivers/acm/classimplementation/ecacm/inc/CdcControlInterfaceReader.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/usbmgmt/usbmgr/device/classdrivers/acm/classimplementation/ecacm/inc/CdcControlInterfaceReader.h Tue Feb 02 02:02:59 2010 +0200
@@ -0,0 +1,94 @@
+/*
+* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+#ifndef __CDCCONTROLINTERFACEREADER_H__
+#define __CDCCONTROLINTERFACEREADER_H__
+
+#include <e32base.h>
+#include "RequestHeader.h"
+#include "acmcapability.h"
+
+class MCdcCommsClassRequestHandler;
+class RDevUsbcClient;
+
+NONSHARABLE_CLASS(CCdcControlInterfaceReader) : public CActive
+/**
+ * Deals with reading control information from the LDD.
+ */
+ {
+public:
+ static CCdcControlInterfaceReader* NewL(
+ MCdcCommsClassRequestHandler& aParent,
+ RDevUsbcClient& aLdd);
+ ~CCdcControlInterfaceReader();
+
+private:
+ CCdcControlInterfaceReader(MCdcCommsClassRequestHandler& aParent,
+ RDevUsbcClient& aLdd);
+
+private: // utility
+ void HandleReadCompletion(TInt aError);
+
+ void DecodeMessageHeader();
+ void DecodeMessageDataWithResponseRequired();
+ void DecodeMessageData();
+
+ void ReadMessageHeader();
+ void ReadMessageData(TUint aLength);
+
+private: // from CActive
+ void RunL();
+ void DoCancel();
+
+private: // unowned
+ MCdcCommsClassRequestHandler& iParent;
+ RDevUsbcClient& iLdd;
+
+private: // owned
+ TBuf8<KUsbRequestHdrSize> iMessageHeader; ///< Raw message header
+
+ enum
+ {
+ KAcmControlReadBufferLength = 256, ///< Size of the ACM control read
+ ///< buffer
+
+ // Request IDs- see p16 of UBSCDC1.1 Table 4.
+ KGetEncapsulated = 0x01, ///< GET_ENCAPSULATED_RESPONSE
+ KGetCommFeature = 0x03, ///< GET_COMM_FEATURE
+ KGetLineCoding = 0x21, ///< GET_LINE_CODING
+
+ KSendEncapsulated = 0x00, ///< SEND_ENCAPSULATED_COMMAND
+ KSetCommFeature = 0x02, ///< SET_COMM_FEATURE
+ KClearCommFeature = 0x04, ///< CLEAR_COMM_FEATURE
+ KSetLineCoding = 0x20, ///< SET_LINE_CODING
+ KSetControlLineState = 0x22, ///< SET_CONTROL_LINE_STATE
+ KSendBreak = 0x23, ///< SEND_BREAK
+ };
+
+ enum TReaderState
+ {
+ EWaitingForHeader = 0, ///< Waiting for message header
+ EWaitingForData = 1, ///< Waiting for message data
+ };
+
+ TBuf8<KAcmControlReadBufferLength> iMessageData; ///< Message data
+ ///< Decoded message header
+ TUsbRequestHdr iRequestHeader;
+ TReaderState iState; ///< Reader state
+ };
+
+#endif // __CDCCONTROLINTERFACEREADER_H__