navienginebsp/ne1_tb/ethernet/shared_ethernet.h
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     1 /*
       
     2 * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  
       
    15 * ne1_tb\ethernet\shared_ethernet.h
       
    16 * Ethernet driver common header
       
    17 *
       
    18 */
       
    19 
       
    20 
       
    21 
       
    22 
       
    23 #ifndef __SHARED_ETHERNET_H__
       
    24 #define __SHARED_ETHERNET_H__
       
    25 
       
    26 #include <e32def.h>
       
    27 #include <kernel/kernel.h>
       
    28 #include <kernel/kern_priv.h>
       
    29 #include <ethernet.h>
       
    30 #include <nkern.h>
       
    31 
       
    32 //
       
    33 // Driver Constants
       
    34 //
       
    35 
       
    36 class DEthernetPdd;
       
    37 
       
    38 /******Ethernet POWER HANDLER CLASS*****/
       
    39 class DEthernetPowerHandler : public DPowerHandler
       
    40 	{
       
    41 public:
       
    42 	DEthernetPowerHandler();
       
    43 	TInt SetEthernetPdd(DEthernetPdd* aEthernetPdd);
       
    44     void PowerDown(TPowerState aState);
       
    45     void PowerUp();
       
    46 	void RequestPower();
       
    47 	void RelinquishPower();
       
    48 private:
       
    49     TBool iCurPoweredUp;
       
    50     TPowerState	iCurPowerState;
       
    51     DEthernetPdd* iEthernetPdd;
       
    52 	};
       
    53 
       
    54 
       
    55 class DEthernetPdd : public DEthernet
       
    56 /**
       
    57 Ethernet PDD class.
       
    58 */
       
    59 	{
       
    60 public:
       
    61     DEthernetPdd();
       
    62     ~DEthernetPdd();
       
    63 
       
    64     /**
       
    65      * Start receiving frames
       
    66      * @return KErrNone if driver started
       
    67      */
       
    68     virtual TInt Start() ;
       
    69     /**
       
    70      * Stop receiving frames
       
    71      * @param aMode The stop mode
       
    72      */
       
    73     virtual void Stop(TStopMode aMode) = 0;
       
    74 
       
    75     /**
       
    76      * Validate a new config
       
    77      * Validates a new configuration should be called before Configure
       
    78      * @param aConfig is the configuration to be validated
       
    79      * @return ETrue or EFalse if the Configuration is allowed
       
    80      * @see Configure()
       
    81      */
       
    82     virtual TInt ValidateConfig(const TEthernetConfigV01 &aConfig) const;
       
    83     /**
       
    84      * Configure the device
       
    85      * Reconfigure the device using the new configuration supplied.
       
    86      * This should not change the MAC address.
       
    87      * @param aConfig The new configuration
       
    88      * @see ValidateConfig()
       
    89      * @see MacConfigure()
       
    90      */
       
    91     virtual TInt Configure(TEthernetConfigV01 &aConfig) = 0;
       
    92     /**
       
    93      * Change the MAC address
       
    94      * Attempt to change the MAC address of the device
       
    95      * @param aConfig A Configuration containing the new MAC
       
    96      * @see Configure()
       
    97      */
       
    98     virtual void MacConfigure(TEthernetConfigV01 &aConfig) = 0;
       
    99     /**
       
   100      * Get the current config from the chip
       
   101      * This returns the current configuration of the chip with the following fields
       
   102      * The Transmit Speed
       
   103      * The Duplex Setting
       
   104      * The MAC address
       
   105      * @param aConfig is a TEthernetConfigV01 reference that will be filled in
       
   106      */
       
   107     virtual void GetConfig(TEthernetConfigV01 &aConfig) const;
       
   108     /**
       
   109      * Check a configuration
       
   110      * @param aConfig	a reference to the structure TEthernetConfigV01 with configuration to check
       
   111      */
       
   112     virtual void CheckConfig(TEthernetConfigV01& aConfig);
       
   113 
       
   114     /**
       
   115      * Query the device's capabilities
       
   116      * @param aCaps To be filled in with the capabilites
       
   117      */
       
   118     virtual void Caps(TDes8 &aCaps) const;
       
   119 
       
   120     /**
       
   121      * Transmit data
       
   122      * @param aBuffer reference to the data to be sent
       
   123      * @return KErrNone if the data has been sent
       
   124      */
       
   125     virtual TInt Send(TBuf8<KMaxEthernetPacket+32> &aBuffer) = 0;
       
   126     /**
       
   127      * Retrieve data from the device
       
   128      * Pull the received data out of the device and into the supplied buffer. 
       
   129      * Need to be told if the buffer is OK to use as if it not we could dump 
       
   130      * the waiting frame in order to clear the interrupt if necessory.
       
   131      * @param aBuffer Reference to the buffer to be used to store the data in
       
   132      * @param okToUse Bool to indicate if the buffer is usable
       
   133      * @return KErrNone if the buffer has been filled.
       
   134      */
       
   135     virtual TInt ReceiveFrame(TBuf8<KMaxEthernetPacket+32> &aBuffer, 
       
   136                               TBool okToUse) = 0;
       
   137 
       
   138 	/**
       
   139 	 * Disables all IRQ's
       
   140 	 * @return The IRQ level before it was changed
       
   141 	 * @see RestoreIrqs()
       
   142 	 */
       
   143 	virtual TInt DisableIrqs();
       
   144 	/**
       
   145 	 * Restore the IRQ's to the supplied level
       
   146 	 * @param aIrq The level to set the irqs to.
       
   147 	 * @see DisableIrqs()
       
   148 	 */
       
   149 	virtual void RestoreIrqs(TInt aIrq);
       
   150 	
       
   151     /**
       
   152      * Return the DFC Queue that this device should use
       
   153      * @param aUnit The Channel number
       
   154      * @return Then DFC Queue to use
       
   155      */
       
   156     virtual TDfcQue* DfcQ(TInt aUnit);
       
   157 
       
   158 	virtual TInt	DoCreate() = 0;
       
   159 	
       
   160 	/**
       
   161 	 * Put the card to sleep
       
   162 	 */
       
   163 
       
   164     virtual void	Sleep() = 0;
       
   165 	/**
       
   166 	 * Wake the card up
       
   167 	 */
       
   168     virtual TInt	Wakeup() = 0;
       
   169 
       
   170 protected:
       
   171 	static void ServiceRxDfc(TAny *aPtr);
       
   172 
       
   173 	/**
       
   174 	 * Does the soft reset of the lan card 
       
   175 	 */
       
   176 	TInt CardSoftReset();
       
   177 
       
   178 protected:
       
   179 	/**
       
   180 	 * Contains the default/current configuration of the chip
       
   181 	 */
       
   182 	TEthernetConfigV01 iDefaultConfig;
       
   183 	/**
       
   184 	 * Is ETrue if the chip has been fully configured.
       
   185 	 */
       
   186 	TBool iReady;
       
   187 	/**
       
   188 	 * Is ETrue if the pdd has been created
       
   189 	 */
       
   190 	TBool iCreated;
       
   191 	DEthernetPowerHandler iPowerHandler;
       
   192 	TDynamicDfcQue* iDfcQ;
       
   193 	TInt32 iInterruptId;
       
   194 	};
       
   195 
       
   196 
       
   197 #endif //__SHARED_ETHERNET_H__