sysnetif.c

鼎鼎大名的WRS提供的VxWorks下pcPentium BSP开发包

*
* This routine performs any 82557 interrupt acknowledge that may be
* required.  This typically involves an operation to some interrupt
* control hardware.
*
* This routine gets called from the 82557 driver's interrupt handler.
*
* This routine assumes that the PCI configuration information has already
* been setup.
*
* RETURNS: OK, or ERROR if the interrupt could not be acknowledged.
*/

LOCAL STATUS sys557IntAck
    (
    int	unit		/* unit number */
    )
    {
    FEI_RESOURCE *pReso = &feiResources [unit];

    switch (pReso->boardType)
	{
	case TYPE_PRO100B_PCI:		/* handle PRO100B LAN Adapter */
	    /* no addition work necessary for the PRO100B */
	    break;

	default:
	    return (ERROR);
	}

    return (OK);
    }

/*******************************************************************************
*
* sys557IntEnable - enable 82557 interrupts
*
* This routine enables 82557 interrupts.  This may involve operations on
* interrupt control hardware.
*
* The 82557 driver calls this routine throughout normal operation to terminate
* critical sections of code.
*
* This routine assumes that the PCI configuration information has already
* been setup.
*
* RETURNS: OK, or ERROR if interrupts could not be enabled.
*/

LOCAL STATUS sys557IntEnable
    (
    int	unit		/* unit number */
    )
    {
    FEI_RESOURCE *pReso = &feiResources [unit];

    switch (pReso->boardType)
	{
	case TYPE_PRO100B_PCI:		/* handle PRO100B LAN Adapter */
	    /* no addition work necessary for the PRO100B */
	    break;

	default:
	    return (ERROR);
	}

    return (OK);
    }

/*******************************************************************************
*
* sys557IntDisable - disable 82557 interrupts
*
* This routine disables 82557 interrupts.  This may involve operations on
* interrupt control hardware.
*
* The 82557 driver calls this routine throughout normal operation to enter
* critical sections of code.
*
* This routine assumes that the PCI configuration information has already
* been setup.
*
* RETURNS: OK, or ERROR if interrupts could not be disabled.
*/

LOCAL STATUS sys557IntDisable
    (
    int	unit		/* unit number */
    )
    {
    FEI_RESOURCE *pReso = &feiResources [unit];

    switch (pReso->boardType)
	{
	case TYPE_PRO100B_PCI:		/* handle PRO100B LAN Adapter */
	    /* no addition work necessary for the PRO100B */
	    break;

	default:
	    return (ERROR);
	}

    return (OK);
    }

/*******************************************************************************
*
* sys557eepromRead - read a word from the 82557 EEPROM
*
* RETURNS: the EEPROM data word read in.
*/

LOCAL UINT16 sys557eepromRead
    (
    int	unit,		/* unit number */
    int	location	/* address of word to be read */
    )
    {
    UINT16 iobase = feiResources[unit].iobaseCsr;
    UINT16 retval = 0;
    UINT16 dataval;
    volatile UINT16 dummy;
    int ix;
 
    sysOutWord (iobase + SCB_EEPROM, EE_CS);	/* enable EEPROM */
 
    /* write the READ opcode */

    for (ix = EE_CMD_BITS - 1; ix >= 0; ix--)
	{
        dataval = (EE_CMD_READ & (1 << ix)) ? EE_DI : 0;
        sysOutWord (iobase + SCB_EEPROM, EE_CS | dataval);
        sysDelay ();	/* delay for one IO READ cycle */
        sysOutWord (iobase + SCB_EEPROM, EE_CS | dataval | EE_SK);
        sysDelay ();	/* delay for one IO READ cycle */
        sysOutWord (iobase + SCB_EEPROM, EE_CS | dataval); 
        sysDelay ();	/* delay for one IO READ cycle */
        }

    /* write the location */

    for (ix = EE_ADDR_BITS - 1; ix >= 0; ix--)
	{
        dataval = (location & (1 << ix)) ? EE_DI : 0;
        sysOutWord (iobase + SCB_EEPROM, EE_CS | dataval);
        sysDelay ();	/* delay for one IO READ cycle */
        sysOutWord (iobase + SCB_EEPROM, EE_CS | dataval | EE_SK);
        sysDelay ();	/* delay for one IO READ cycle */
        sysOutWord (iobase + SCB_EEPROM, EE_CS | dataval); 
        sysDelay ();	/* delay for one IO READ cycle */
	dummy = sysInWord (iobase + SCB_EEPROM);
        }

    if ((dummy & EE_DO) == 0)		/* dummy read */
	;
 
    /* read the data */

    for (ix = EE_DATA_BITS - 1; ix >= 0; ix--)
	{
        sysOutWord (iobase + SCB_EEPROM, EE_CS | EE_SK);
        sysDelay ();	/* delay for one IO READ cycle */
        retval = (retval << 1) | 
	         ((sysInWord (iobase + SCB_EEPROM) & EE_DO) ? 1 : 0);
        sysOutWord (iobase + SCB_EEPROM, EE_CS);
        sysDelay ();	/* delay for one IO READ cycle */
        }
 
    sysOutWord (iobase + SCB_EEPROM, 0x00);	/* disable EEPROM */

    return (retval);
    }

/*******************************************************************************
*
* sys557mdioRead - read MDIO
*
* RETURNS: read value
*/

LOCAL UINT32 sys557mdioRead
    (
    int	unit,		/* unit number */
    int phyId,		/* PHY ID */
    int location	/* location to read */
    )
    {
    UINT16 iobase = feiResources[unit].iobaseCsr;
    int timeout   = 64*4;	/* <64 usec. to complete, typ 27 ticks */
    int val;

    sysOutLong (iobase + SCB_MDI, 0x08000000 | (location<<16) | (phyId<<21));
    do {
    	sysDelay ();	/* delay for one IO READ cycle */
    	val = sysInLong (iobase + SCB_MDI);
    	if (--timeout < 0)
    	    printf ("sys557mdioRead() timed out with val = %8.8x.\n", val);
        } while (! (val & 0x10000000));

    return (val & 0xffff);
    }

/*******************************************************************************
*
* sys557mdioWrite - write MDIO
*
* RETURNS: write value
*/

LOCAL UINT32 sys557mdioWrite
    (
    int unit,		/* unit number */
    int phyId,		/* PHY ID */
    int location,	/* location to write */
    int value		/* value to write */
    )
    {
    UINT16 iobase = feiResources[unit].iobaseCsr;
    int timeout   = 64*4;	/* <64 usec. to complete, typ 27 ticks */
    int val;

    sysOutLong (iobase + SCB_MDI,
		0x04000000 | (location<<16) | (phyId<<21) | value);
    do {
    	sysDelay ();	/* delay for one IO READ cycle */
    	val = sysInLong (iobase + SCB_MDI);
    	if (--timeout < 0)
    	    printf ("sys557mdioWrite() timed out with val = %8.8x.\n", val);
        } while (! (val & 0x10000000));

    return (val & 0xffff);
    }

/*******************************************************************************
*
* sys557Show - shows 82557 configuration 
*
* this routine shows (Intel Pro Express 100) configuration 
*
* RETURNS: N/A
*/

void sys557Show
    (
    int	unit		/* unit number */
    )
    {
    FEI_RESOURCE *pReso = &feiResources [unit];
    UINT16 iobase       = pReso->iobaseCsr;
    UCHAR etheraddr[6];
    int ix;
    int iy;

    if (unit >= feiUnits)
	{
	printf ("none\n");
	return;
	}

    for (ix = 0, iy = 0; ix < 3; ix++) 
	{
        etheraddr[iy++] = pReso->eeprom[ix];
        etheraddr[iy++] = pReso->eeprom[ix] >> 8;
        }
    printf ("82557(%d): Intel EtherExpress Pro 10/100 at %#3x ", unit, iobase);
    for (ix = 0; ix < 5; ix++)
    	printf ("%2.2X:", etheraddr[ix]);
    printf ("%2.2X\n", etheraddr[ix]);

    printf ("CSR mem base address = %x, Flash mem base address = %x\n", 
	    pReso->membaseCsr, pReso->membaseFlash);
    printf ("PCI bus no. = %x, device no. = %x, function no. = %x, IRQ = %d\n",
	    pReso->pciBus, pReso->pciDevice, pReso->pciFunc, pReso->irq);

    if (pReso->eeprom[3] & 0x03)
        printf ("Receiver lock-up bug exists -- enabling work-around.\n");

    printf ("Board assembly %4.4x%2.2x-%3.3d, Physical connectors present:",
	pReso->eeprom[8], pReso->eeprom[9]>>8, pReso->eeprom[9] & 0xff);
    for (ix = 0; ix < 4; ix++)
	if (pReso->eeprom[5] & (1 << ix))
	    printf (connectors [ix]);

    printf ("\nPrimary interface chip %s PHY #%d.\n",
	phys[(pReso->eeprom[6]>>8)&7], pReso->eeprom[6] & 0x1f);
    if (pReso->eeprom[7] & 0x0700)
	printf ("Secondary interface chip %s.\n", 
		phys[(pReso->eeprom[7]>>8)&7]);

#if	FALSE  /* we don't show PHY specific info at this time */
    /* ToDo: Read and set PHY registers through MDIO port. */
    for (ix = 0; ix < 2; ix++)
	printf ("MDIO register %d is %4.4x.\n",
		ix, sys557mdioRead (unit, pReso->eeprom[6] & 0x1f, ix));
    for (ix = 5; ix < 7; ix++)
	printf ("MDIO register %d is %4.4x.\n",
		ix, sys557mdioRead (unit, pReso->eeprom[6] & 0x1f, ix));
    printf ("MDIO register %d is %4.4x.\n",
	    25, sys557mdioRead (unit, pReso->eeprom[6] & 0x1f, 25));
#endif	/* FALSE */

    if (pReso->timeout < 0) 
        {		/* Test optimized out. */
	printf ("Self test failed, status %8.8x:\n"
	        " Failure to initialize the 82557.\n"
	        " Verify that the card is a bus-master capable slot.\n",
	        pReso->pResults[1]);
	}
    else 
        {
	printf ("General self-test: %s.\n"
	        " Serial sub-system self-test: %s.\n"
	        " Internal registers self-test: %s.\n"
	        " ROM checksum self-test: %s (%#8.8x).\n",
	        pReso->pResults[1] & 0x1000 ? "failed" : "passed",
	        pReso->pResults[1] & 0x0020 ? "failed" : "passed",
	        pReso->pResults[1] & 0x0008 ? "failed" : "passed",
	        pReso->pResults[1] & 0x0004 ? "failed" : "passed",
	        pReso->pResults[0]);
        }
    }

#endif /* INCLUDE_FEI  || INCLUDE_FEI_END */

#ifdef INCLUDE_EEX32

/* includes */

#include "drv/netif/if_eex32.h"

/* defines */

#undef		EEX32_DEBUG		/* Compiles debug output */
#define 	MAX_UNITS	4	/* maximum units to support */

/* LAN Board Types */

#define		TYPE_UNKNOWN	0	/* initial value */
#define		TYPE_EEX32	1	/* Intel EtherExpress Flash 32 */

/* typedefs */

typedef struct i596Info			/* extra information struct */
    {
    UINT	port;			/* I/O port base address */
    UINT	type;			/* Type of LAN board this unit is */
    int		ilevel;			/* Interrupt level of this unit */
    } I596_INFO;


/* globals */

STATUS 	sysEnetAddrGet	(int unit, char addr[]);
STATUS 	sys596Init	(int unit);
STATUS 	sys596IntAck	(int unit);
STATUS 	sys596IntEnable (int unit);
void   	sys596IntDisable (int unit);
void   	sys596Port	(int unit, int cmd, UINT32 addr);
void   	sys596ChanAtn	(int unit);

/* locals */

LOCAL I596_INFO i596Info [MAX_UNITS];

LOCAL unsigned char eex32IdString [] =	/* Fixed-length, no NUL terminator! */
    {
    EEX32_EISA_ID0,
    EEX32_EISA_ID1,
    EEX32_EISA_ID2,
    EEX32_EISA_ID3
    };

LOCAL unsigned char eex32IntLevel [8] = /* first 4 are PLX, rest are FLEA */
    {
    5, 9, 10, 11, 3, 7, 12, 15
    };

/* forward function declarations */

LOCAL STATUS sysInitNecessary (int unit);
LOCAL STATUS sysFindEisaBoard (I596_INFO *pI596Info, UCHAR *idString);

/*******************************************************************************
*
* sysEnetAddrGet - retrieve net unit's Ethernet address
*
* The driver expects this routine to provide the six byte Ethernet address
* that will be used by this unit.  This routine must copy the six byte
* address to the space provided by pCopy.  This routine is expected to
* return OK on success, or ERROR.
*
* The driver calls this routine, once per unit, from the eiattach() routine.
* In if_ei.c version 03c,15jan93, this routine is the first 82596 support