pDrvCtrl->addrList[count] = 0;    /* Zero the addresses */    pDrvCtrl->mcastAddrCount = 0;        /* Init the multi count */    pAddr = (UCHAR *)(&pDrvCtrl->addrList[0]);    pAddr += 6;        /*  Leave first 6 bytes for our MAC address */    pCurr = END_MULTI_LST_FIRST (&pDrvCtrl->end);#if 1    /*     * Now copy the addresses from ether_multi_list to our own array.  In our     * array, the first 6 bytes are for our own MAC address.  This array is     * an exact replica of the internal CAM registers of Ethernet controller.     * The CAM registers will be updated in at91cEndMacInitialize() function     */          /*源地址為8bit大端格式--> 32bit 小/大端格式     * 例:     * MAC: A-B-C-D-E-F ,0-1-2-3-4-5,6-7-8-9-a-b,??....     *     *大端:ABCD-EF01-2345-6789-ab??....     *小端:DCBA-10FE-5432-9876-??ba.....     *     */    while (pCurr != NULL)        {        if (pDrvCtrl->mcastAddrCount > AT91C_MAX_MULTI)            break;#if (_BYTE_ORDER == _LITTLE_ENDIAN)        if (!(pDrvCtrl->mcastAddrCount & 0x01))            {            pAddr -= 2;            /* little endian: address has to be stored in a swapped fashion! */            *(UINT16 *)pAddr = htons (*(UINT16 *)pCurr->addr);            pAddr += 4;            *(UINT16 *)pAddr = htons (*(UINT16 *)(pCurr->addr+4));            pAddr += 2;            *(UINT16 *)pAddr = htons (*(UINT16 *)(pCurr->addr+2));            }        else            {            pAddr += 2;            /* little endian: address has to be stored in a swapped fashion! */            *(UINT16 *)pAddr = htons (*(UINT16 *)(pCurr->addr+2));            pAddr += 2;            *(UINT16 *)pAddr = htons (*(UINT16 *)pCurr->addr);            pAddr += 4;            *(UINT16 *)pAddr = htons (*(UINT16 *)(pCurr->addr+4));            }#else /* _LITTLE_ENDIAN */        /* big endian: no need to swap */        for (pEnetAddr=pCurr->addr;             pEnetAddr < (UCHAR *)(pCurr->addr+6);             pEnetAddr++)            {            *pAddr++ = *pEnetAddr;            }#endif /* _LITTLE_ENDIAN */        /* Bump the multicast address count */        pDrvCtrl->mcastAddrCount++;            /* Get the next address in the list */        pCurr = END_MULTI_LST_NEXT(pCurr);        }#endif	    }/******************************************************************************* at91cEndMCastAdd - add a multicast address for the device** This routine adds a multicast address to whatever the driver* is already listening for.  It then resets the address filter.** RETURNS: OK or ERROR.*/LOCAL STATUS at91cEndMCastAdd    (    END_DEVICE *pDrvCtrl,    /* device pointer */    char* pAddress        /* new address to add */    )    {    int error;    if ((error = etherMultiAdd (&pDrvCtrl->end.multiList,                                pAddress)) == ENETRESET)        at91cEndConfig (pDrvCtrl);    return (OK);    }/******************************************************************************* at91cEndMCastDel - delete a multicast address for the device** This routine removes a multicast address from whatever the driver* is listening for.  It then resets the address filter.** RETURNS: OK or ERROR.*/LOCAL STATUS at91cEndMCastDel    (    END_DEVICE* pDrvCtrl,    /* device pointer */    char* pAddress        /* address to be deleted */    )    {    int error;    if ((error = etherMultiDel (&pDrvCtrl->end.multiList,                                (char *)pAddress)) == ENETRESET)        at91cEndConfig (pDrvCtrl);    return (OK);    }/******************************************************************************* at91cEndMCastGet - get the multicast address list for the device** This routine gets the multicast list of whatever the driver* is already listening for.** RETURNS: OK or ERROR.*/LOCAL STATUS at91cEndMCastGet    (    END_DEVICE* pDrvCtrl,    /* device pointer */    MULTI_TABLE* pTable        /* address table to be filled in */    )    {    int error;    error = etherMultiGet (&pDrvCtrl->end.multiList, pTable);    return (error);    }/******************************************************************************** at91cEndStop - stop the device** This function calls BSP functions to disconnect interrupts and stop* the device from operating in interrupt mode.** RETURNS: OK or ERROR.*/LOCAL STATUS at91cEndStop    (    END_DEVICE *pDrvCtrl    /* device to be stopped */    )    {    STATUS result = OK;    *(volatile UINT32 *)AT91C_EMAC_CTL &= ~(AT91C_EMAC_RE | AT91C_EMAC_TE);	    intDisable (pDrvCtrl->ivecEMAC);    END_FLAGS_CLR (&pDrvCtrl->end, IFF_UP | IFF_RUNNING);    return (result);    }/******************************************************************************* at91cEndReset - Reset the device* This function resets the driver after initializing from at91cEndLoad*/LOCAL void    at91cEndReset    (    END_DEVICE* pDrvCtrl    /* device to be reset */    )    {    	UINT32 stat1, stat2;	char lab;  	    if(pDrvCtrl->unit != 0)        return;	    if (pDrvCtrl->autoNeg == 1) /* auto negotiation enabled? */     {        		at91cEndPhyWrite (PHY_CONTROL_REG, PHY_ADDR, _AUTO_NEGOTIATE);		stat1 = at91cEndPhyRead(PHY_STS1_REG,0);		if(!(stat1 & 0x4))			{				    			return;	/* no link */		}				stat2 = at91cEndPhyRead(PHY_STS2_REG,0);					if ((stat1 & 0x4000) && (stat2 & 0x8000) ) 		/*set RMII for 100BaseTX and Full Duplex*/		{			lab = 'A';	    	}    		else if ((stat1 & 0x2000) && (stat2 & 0x4000))    /*set MII for 100BaseTX and Half Duplex */		{			lab = 'B';	    	}    		else if ((stat1 & 0x1000) && (stat2 & 0x2000))     /*set MII for 10BaseT and Full Duplex */		{			lab = 'C';	    	}    		else if ((stat1 & 0x0800) && (stat2 & 0x1000))     /*set MII for 10BaseT and Half Duplex */		{			lab = 'D';		}	    	}    else if (pDrvCtrl->netSpeed == 10)    {    	    	if (pDrvCtrl->duplexMode == 1)    /* FDX */        	    	{	    		at91cEndPhyWrite (PHY_CONTROL_REG, PHY_ADDR, _10_MB_FDX);					lab = 'C';    	    	}		else				{	           	at91cEndPhyWrite (PHY_CONTROL_REG, PHY_ADDR, _10_MB_HDX);					lab = 'D';	    	}	    }	    else if (pDrvCtrl->netSpeed == 100)    {	        if (pDrvCtrl->duplexMode == 1)    /* FDX */	        {	        	at91cEndPhyWrite (PHY_CONTROL_REG, PHY_ADDR, _100_MB_FDX);			lab = 'A';	        }	        else	        {	            	at91cEndPhyWrite (PHY_CONTROL_REG, PHY_ADDR, _100_MB_HDX);			lab = 'B';	        }    }	switch(lab)	{		case 'A':    			*(volatile UINT32 *)AT91C_EMAC_CFG |= AT91C_EMAC_SPD| AT91C_EMAC_FD;		break;		case 'B':			*(volatile UINT32 *)AT91C_EMAC_CFG |= AT91C_EMAC_SPD;			*(volatile UINT32 *)AT91C_EMAC_CFG &=	~AT91C_EMAC_FD;		break;		case 'C':			*(volatile UINT32 *)AT91C_EMAC_CFG &=	~AT91C_EMAC_SPD;			*(volatile UINT32 *)AT91C_EMAC_CFG |= AT91C_EMAC_FD;		break;		case 'D':			*(volatile UINT32 *)AT91C_EMAC_CFG &= ~(AT91C_EMAC_SPD| AT91C_EMAC_FD);		break;		default :		break;	}   *(volatile UINT32 *)AT91C_EMAC_CTL |= AT91C_EMAC_CSR;   /*clear the statistic regs*/   *(volatile UINT32 *)AT91C_EMAC_CTL = 0;   *(volatile UINT32 *)AT91C_EMAC_TSR= 0;   *(volatile UINT32 *)AT91C_EMAC_RSR= 0;  /* *(volatile UINT32 *)AT91C_EMAC_CFG |= (AT91C_EMAC_RMII |AT91C_EMAC_CAF);*/   *(volatile UINT32 *)AT91C_EMAC_CFG |= (AT91C_EMAC_RMII );    return;    }#undef DYNAMIC_PHY/******************************************************************************* at91cEndPhyRead - Read PHY device* This function is used to read a byte from the PHY device*/LOCAL UINT32 at91cEndPhyRead    (    UINT32 phyRegAddr, /* Address of PHY register to be read */    UINT32 phyAddr     /* Address of the PHY chip (usually 0 for single PHY) */    )    {    UINT32 phyData;    *(volatile UINT32 *)AT91C_EMAC_CTL |= AT91C_EMAC_MPE; /*Management Port Enable */    *(volatile UINT32 *)AT91C_EMAC_MAN  = AT91C_EMAC_CODE |AT91C_EMAC_RD |AT91C_EMAC_HIGH 									| phyRegAddr << 18 |phyAddr <<23;    while ( (*(volatile UINT32 *)AT91C_EMAC_SR & 0x4) == 0) /***** IDLE bit ******/        ;    /* Wait till IDLE bit is SET */    phyData = *(volatile UINT32*)AT91C_EMAC_MAN & AT91C_EMAC_DATA ;   *(volatile UINT32 *)AT91C_EMAC_CTL &= ~AT91C_EMAC_MPE; /*Management Port disable */	    return (phyData);    } /*DYNAMIC_PHY*//******************************************************************************* at91cEndPhyWrite    - Write into PHY device* This function is used to write a byte to the PHY device*/LOCAL void at91cEndPhyWrite    (    UINT32 phyRegAddr, /* Address of PHY register to be written */    UINT32 phyAddr,    /* Address of the PHY chip (usually 0 for single PHY) */    UINT32 phyData     /* Data to be written */    )    {  /*  UINT32 count = 1000;*/    *(volatile UINT32 *)AT91C_EMAC_CTL |= AT91C_EMAC_MPE; /*Management Port Enable */    *(volatile UINT32 *)AT91C_EMAC_MAN  = AT91C_EMAC_CODE |AT91C_EMAC_WR |AT91C_EMAC_HIGH 									| phyRegAddr << 18 |phyAddr <<23 | phyData ;    while ( (*(volatile UINT32 *)AT91C_EMAC_SR & 0x4) == 0) /***** IDLE bit ******/        ;    /* Wait till IDLE bit is SET *//*    while (count--)        ;  */  /* Dummy delay after PHY write */   *(volatile UINT32 *)AT91C_EMAC_CTL &= ~AT91C_EMAC_MPE; /*Management Port disable */	    }/******************************************************************************* at91cEndMacIntialize - Initialize MAC/BDMA registers* Initialize the MAC and BDMA registers to make the Ethernet* interface functional*/LOCAL void at91cEndMacInitialize    (    END_DEVICE *pDrvCtrl    /* Device that has to be initialized */    )    {    UCHAR    *pAddr;  /* UINT32 temp;     UINT32 * SAH;    UINT32 *SAL;    UCHAR count;	*/	#if 1#if (_BYTE_ORDER != _LITTLE_ENDIAN)    UCHAR *pEnetAddr;#endif#endif#if 0#ifdef DYNAMIC_PHY    UINT32    phyStat2;#endif DYNAMIC_PHY    /* init MAC register *//*動(dòng)態(tài)物理層處理?*/#ifdef DYNAMIC_PHY    phyStat2 = at91cEndPhyRead (PHY_DSCSR_REG,0);    if (phyStat2 & FDX)	    *(volatile UINT32 *)AT91C_EMAC_CFG |= AT91C_EMAC_FD;#else /*DYNAMIC_PHY*/    if ((pDrvCtrl->autoNeg == 0) && (pDrvCtrl->duplexMode == 1))	    *(volatile UINT32 *)AT91C_EMAC_CFG |= AT91C_EMAC_FD;#endif /*DYNAMIC_PHY*/#ifdef LOOPBACK_DEBUG    printf ("********* END DRIVER LOOPBACK DEBUG MODE *************\n");	    *(volatile UINT32 *)AT91C_EMAC_CTL |= AT91C_EMAC_LBL;#endif /*LOOPBACK_DEBUG*/#endif#if 1    /* Copy our MAC address to the first location in address array */    pAddr = (UCHAR *)(&(pDrvCtrl->addrList[0]));#if (_BYTE_ORDER == _LITTLE_ENDIAN)    *(UINT32 *)pAddr = htonl (*(UINT32 *)pDrvCtrl->enetAddr);    pAddr += 6;    *(UINT16 *)pAddr = htons (*(UINT16 *)(pDrvCtrl->enetAddr+4));#else /* (_BYTE_ORDER == _LITTLE_ENDIAN) */    /* big endian: no need to swap */    for (pEnetAddr=pDrvCtrl->enetAddr;         pEnetAddr<pDrvCtrl->enetAddr+6;         pEnetAddr++)        {        *pAddr++ = *pEnetAddr;        }#endif /* (_BYTE_ORDER == _LITTLE_ENDIAN) */#endif    /* Copy the address array into Specific registers */#if 0/*對(duì)不對(duì)呢*/pAddr = (UCHAR *)(&(pDrvCtrl->addrList[0]));SAH = AT91C_EMAC_SA1H;SAL = AT91C_EMAC_SA1L;count = 0;while((count <4)&&(count<=(pDrvCtrl->mcastAddrCount)) )/*4 specificed address*/{	#if (_BYTE_ORDER == _LITTLE_ENDIAN)	/*3-2-1-0,7-6-5-4,B-A-9-8,F-E-D-C...*/	if((count & 1) == 0)	{		*(volatile UINT32 *)SAH = htons(*(UINT16 *)(pAddr+2));	       *(volatile UINT32 *)SAL = htons(*(UINT16 *)pAddr)<<16 + htons(*(UINT16 *)(pAddr + 6));				}	else	{		        *(volatile UINT32 *)SAH = htons(*(UINT16*)(pAddr - 2));             		 *(volatile UINT32 *)SAL = htonl(*(UINT32 *)(pAddr + 2));		 		}#else       *(volatile UINT32 *)SAH = *(UINT16 *)pAddr;       *(volatile UINT32 *)SAL = *(UINT32 *)(pAddr+2);#endif /* (_BYTE_ORDER == _LITTLE_ENDIAN) */	(UINT32 *)SAH += 2;	(UINT32 *)SAL += 2;	pAddr += 6;	count++;}#endif/*MAC地址--寫(xiě)入特殊地址*//*pAddr = sysAt91cMacAddr;*/#if 0#if (_BYTE_ORDER == _LITTLE_ENDIAN)*(volatile UINT32 *) AT91C_EMAC_SA1H = htons(*(UINT16 *)pAddr);*(volatile UINT32 *) AT91C_EMAC_SA1L = htonl (*(UINT32 *)(pAddr+2));#else /* (_BYTE_ORDER == _LITTLE_ENDIAN) */    /* big endian: no need to swap */*(volatile UINT32 *) AT91C_EMAC_SA1H = (*(UINT16 *)pAddr);*(volatile UINT32 *) AT91C_EMAC_SA1L = *(UINT32 *)(pAddr+2);#endif /* (_BYTE_ORDER == _LITTLE_ENDIAN) */#endif#if 0*(vol