ether_test.c

开放源码实时操作系统源码.

		printf ("(such as a workstation) that is working correctly.\n");
		mask_557_ints ();      /* Disable 557 interrupt */
		return;
	    }
	  
	    count++;
	    printf("Loopback Cycle Count = %d\n", count);
	}

	/* It worked! */

	mask_557_ints ();       /* Disable 557 interrupt */

	printf ("\nEthernet controller passed.  Press return to continue.\n");

	sgets (buf);
    }
}


/* Perform internal self test - returns OK if sucessful, ERROR if not. */
static int i557SelfTest ()
{
    volatile struct selfTest *pSelfTestMem;
    UINT32 oldWord2;
    long delay;
    UINT32 temp;
    int	rtnVal;

    /* reset the 82557 to start with a clean slate */
    resetChip();

    /* Allocate some memory for the self test */
    pSelfTestMem = (struct selfTest *) malloc (sizeof(struct selfTest));

    if (pSelfTestMem == NULL) {
	printf ("Couldn't get memory for self test.\n");
	return (ERROR);
    }

    printf ("Sending PORT* self-test command...\n");
    printf ("Local Dump address = 0x%X\n", pSelfTestMem);

    /* Set all bits in  second word, wait until it changes or a timeout */
    pSelfTestMem->u.word2 = ~0;
    oldWord2 = pSelfTestMem->u.word2;

    temp = ((UINT32) pSelfTestMem) + PORT_SELF_TEST;

    portWrite (temp);

    /* Wait for test completion or for timeout */
    for (delay = 0; (delay < MAX_DELAY) && (pSelfTestMem->u.word2 == oldWord2); delay++)
	;	/* Wait... */

    /* Print results */
    printf ("Self test result: %s\n", (pSelfTestMem->u.bits.selfTest) ? "Fail" : "Pass");
    printf ("ROM content test: %s\n", (pSelfTestMem->u.bits.romTest) ? "Fail" : "Pass");
    printf ("Register test:    %s\n", (pSelfTestMem->u.bits.regTest) ? "Fail" : "Pass");
    printf ("Diagnose test:    %s\n", (pSelfTestMem->u.bits.diagnTest) ? "Fail" : "Pass");
    printf ("ROM signature:    0x%X\n", pSelfTestMem->romSig);

    rtnVal = pSelfTestMem->u.bits.selfTest ? ERROR : OK;

    return (rtnVal);
}


/* Initialize the 82557. */
static int i557Init (void)
{
    /* Get memory for system data structures */
    if ( ((pRfd = (struct rfd *) malloc (sizeof(struct rfd))) == NULL) || 
	 ((pPacketBuf = malloc(ETHERMTU + sizeof(UINT16) + 6)) == NULL) ||
	 ((pCmdBlock = (union cmdBlock *) malloc (sizeof(union cmdBlock))) == NULL) ) {
	printf ("Memory allocation failed.\n");
	return (ERROR);
    }

    /* Set EL bits in command block and rfd so we don't fall of the end */
    pCmdBlock->nop.el = END_OF_LIST;
    pRfd->el = END_OF_LIST;

    /* Reset chip and initialize */
    printf ("Initializing... ");

    /* Reset 82557 */
    resetChip ();
		
    /* set up the CU and RU base values to 0x0 */
    sendCommand (LOAD_CU_BASE, RU_NOP, 0);
    sendCommand (CU_NOP, LOAD_RU_BASE, 0);
	
    /* Initialize interrupts */
	
    /* if it is the onboard i82559, it does not use the conventional PCI
       interrupt routines because the interrupt is not multiplexed onto
       the PCI bus */
    if ((unit_busno == 2) && (unit_devno == 0) && (unit_funcno == 0)) {
	if (isr_connect (ENET_INT_ID, (VOIDFUNCPTR)i557IntHandler, 0xdeadbeef) != OK) {
	    printf ("Error connecting Ethernet interrupt!\n");
	    return (ERROR);
	}
	if (enable_external_interrupt (ENET_INT_ID) != OK) {
	    printf ("Error enabling Ethernet interrupt!\n");
	    return (ERROR);
	}
    } else {  /* use regular PCI int connect scheme */
	if (pci_isr_connect (unit_intpin, unit_busno, unit_devno, i557IntHandler, 0xdeadbeef) != OK) {
	    printf ("Error connecting Ethernet interrupt!\n");
	    return (ERROR);
	}
    }
    unmask_557_ints();
    printf ("Done\n");
    return (OK);
}


static int initPHY (UINT32 device_type, int loop_mode)
{
    UINT16 temp_reg;
    UINT8 revision;

    /* strip off revision and phy. id information */ 
    revision = (UINT8)(device_type & REVISION_MASK);
    device_type &= ~REVISION_MASK;

    switch (device_type) {
    case ICS1890_PHY_ID: 
	temp_reg = readMDI (0, MDI_DEFAULT_PHY_ADDR, MDI_PHY_CTRL);  /* get ready for loopback setting */
	    
	switch (loop_mode) {
	case EXT_LOOP_BACK:  /* loopback on the MII interface */
	    temp_reg |= MDI_CTRL_LOOPBACK;	/* MII loopback */
	    break;

	case INT_LOOP_BACK:
	default:
	    break;
	}
    	    
	writeMDI(0, MDI_DEFAULT_PHY_ADDR, MDI_PHY_CTRL, temp_reg);
	break;
		
    case DP83840_PHY_ID:  /* set the Intel-specified "must set" bits */
	temp_reg = readMDI (0,MDI_DEFAULT_PHY_ADDR, DP83840_PCR_REG);
	temp_reg |= (PCR_TXREADY_SEL | PCR_FCONNECT);
	writeMDI (0,MDI_DEFAULT_PHY_ADDR, DP83840_PCR_REG, temp_reg);

	/* get ready for loopback setting */
	temp_reg = readMDI (0,MDI_DEFAULT_PHY_ADDR, DP83840_LOOPBACK_REG);
	temp_reg &= CLEAR_LOOP_BITS;

	switch (loop_mode) {
	case EXT_LOOP_BACK:
	    temp_reg |= TWISTER_LOOPBACK;
	    break;

	case INT_LOOP_BACK:
	default:
	    break;
	}

	writeMDI (0,MDI_DEFAULT_PHY_ADDR, DP83840_LOOPBACK_REG, temp_reg);
	break;
			
    case I82553_PHY_ID:
    case I82553_REVAB_PHY_ID:
    case I82555_PHY_ID:
	break;

    default:
	return (ERROR);
	break;
    }

    return (OK);
}


/* Set hardware address of the 82557. */
static int i557AddrSet ()
{
    printf ("Setting hardware ethernet address to ");
    printf ("%02X:%02X:%02X:", node_address[0], node_address[1], node_address[2]);
    printf ("%02X:%02X:%02X... ", node_address[3], node_address[4], node_address[5]);

    /* Set up iaSetup command block and execute */
    memset((char *) pCmdBlock, 0, sizeof(union cmdBlock));
    pCmdBlock->iaSetup.code = IA_SETUP;
    pCmdBlock->iaSetup.el = END_OF_LIST;
    memcpy(pCmdBlock->iaSetup.enetAddr, node_address, sizeof(node_address));

    sendCommand (CU_START, RU_NOP, ((UINT32)pCmdBlock));

    if ((waitForInt() == ERROR) || (pCmdBlock->iaSetup.ok != 1)) {
	printf ("failed.  Status: 0x%04X.\n", pSCB->cmdStat.words.status);
	printf ("C bit = %d\n",pCmdBlock->iaSetup.c);
	printf ("OK bit = %d\n",pCmdBlock->iaSetup.ok);
	return (ERROR);
    }
    
    printf ("done.\n");
    return (OK);
}


/* Configure the 82557. */
static int i557Config (UINT8 loopBackMode)	/* None, int, or ext 1, 2 (see etherTest.h) */
{
    printf ("\nConfiguring for ");

    switch (loopBackMode) {
    case INT_LOOP_BACK:
	printf ("internal loopback... ");
	break;
    case EXT_LOOP_BACK:
	printf ("external loopback, LPBK* active... ");
	break;
    default:
	printf ("Unknown loopback mode, exiting...\n");
	return (ERROR);
    }

    /* Set up configure command block and execute */
    memset ((char *) pCmdBlock, 0, sizeof(union cmdBlock));
    pCmdBlock->configure.code = CONFIGURE;
    pCmdBlock->configure.el = END_OF_LIST;
    pCmdBlock->configure.configData[ 0] = CONFIG_BYTE_00;
    pCmdBlock->configure.configData[ 1] = CONFIG_BYTE_01;
    pCmdBlock->configure.configData[ 2] = CONFIG_BYTE_02;
    pCmdBlock->configure.configData[ 3] = CONFIG_BYTE_03;
    pCmdBlock->configure.configData[ 4] = CONFIG_BYTE_04;
    pCmdBlock->configure.configData[ 5] = CONFIG_BYTE_05;
    pCmdBlock->configure.configData[ 6] = CONFIG_BYTE_06;
    pCmdBlock->configure.configData[ 7] = CONFIG_BYTE_07;
    pCmdBlock->configure.configData[ 8] = CONFIG_BYTE_08;
    pCmdBlock->configure.configData[ 9] = CONFIG_BYTE_09;
    pCmdBlock->configure.configData[10] = CONFIG_BYTE_10 | loopBackMode;
    pCmdBlock->configure.configData[11] = CONFIG_BYTE_11;
    pCmdBlock->configure.configData[12] = CONFIG_BYTE_12;
    pCmdBlock->configure.configData[13] = CONFIG_BYTE_13;
    pCmdBlock->configure.configData[14] = CONFIG_BYTE_14;
    pCmdBlock->configure.configData[15] = CONFIG_BYTE_15;
    pCmdBlock->configure.configData[16] = CONFIG_BYTE_16;
    pCmdBlock->configure.configData[17] = CONFIG_BYTE_17;
    pCmdBlock->configure.configData[18] = CONFIG_BYTE_18;

    if (link_speed == SPEED_100M) 
	pCmdBlock->configure.configData[19] = CONFIG_BYTE_19_100T;
    else {
	pCmdBlock->configure.configData[19] = CONFIG_BYTE_19_10T;
	pCmdBlock->configure.configData[20] = CONFIG_BYTE_20;
	pCmdBlock->configure.configData[21] = CONFIG_BYTE_21;
    }

    sendCommand (CU_START, RU_NOP, ((UINT32)pCmdBlock));

    if ((waitForInt() == ERROR) || (pCmdBlock->configure.ok != 1)) {
	printf ("failed.  Status: 0x%04X.\n", pSCB->cmdStat.words.status);
	return (ERROR);
    }

    initPHY (phy_id, loopBackMode);  /* set up the PHY interface appropriately */

    printf ("done.\n");
    return (OK);
}


static int i557RUStart (void)
{
    volatile long delay;

    memset((char *) pRfd, 0, sizeof(struct rfd));

    /* Set end-of-list bit in the rfd so we don't fall off the end */
    pRfd->el = END_OF_LIST;
    pRfd->s = 1;
    pRfd->sf = 0;				/* Simplified mode */
    pRfd->rbdAddr = (UINT8 *) 0xffffffff; 	/* No RBD */
    /* buffer size: */
    pRfd->size = sizeof (pRfd->rxData) + sizeof (pRfd->destAddr) + sizeof (pRfd->sourceAddr) + sizeof (pRfd->length); 

    sendCommand (CU_NOP, RU_START, ((UINT32)pRfd));

    /*
     * Poll, can't use waitForInt (), as this step doesn't generate interrupts.
     */

    i557Status = 0;

    /* Wait for timeout (i557Status changes) or RU_STAT is RU_READY */
    for (delay = 0; (delay < MAX_DELAY) && (pSCB->cmdStat.bits.rus != RU_READY); delay++)
	;	/* Wait... */

    if (pSCB->cmdStat.bits.rus != RU_READY) {
	printf ("failed.  Status: 0x%04X.\n", pSCB->cmdStat.words.status);
	return (ERROR);
    }

    return (OK);
}


/*
 * Get packet ready to send out over the network.  Buffer should be
 * ETHERMTU + sizeof(enet_addr) + sizeof(UINT16)
 */
static void setUpPacket (char *pBuf)/* Where to put it */
{
    memcpy (pBuf, node_address, sizeof(node_address));
    pBuf += sizeof(node_address); /* skip dest. address */
    
    *((UINT16 *) pBuf) = 0;
    pBuf += sizeof(UINT16);      /* skip length field */

    makePacket (pBuf, ETHERMTU);
}


/* Send and verify a packet using the current loopback mode. */
static int txPacket (char *pBuf) /* Dest addr, ethertype, buffer */
{
    int status = OK;

    /* Set up transmit command block and execute */
    memset((char *) pCmdBlock, 0, sizeof(union cmdBlock));
    pCmdBlock->transmit.code = TRANSMIT;
    pCmdBlock->transmit.el = END_OF_LIST;
    pCmdBlock->transmit.sf = 0;				/* Simplified mode */
    pCmdBlock->transmit.tbdAddr = (UINT8 *) 0xffffffff; /* No TBD */
    pCmdBlock->transmit.eof = 1;			/* Entire frame here */
    /* # bytes to tx: */
    pCmdBlock->transmit.tcbCount = sizeof (pCmdBlock->transmit.destAddr) + sizeof (pCmdBlock->transmit.length) +
	sizeof (pCmdBlock->transmit.txData);

#if 0
    printf ("destAddr size = %d\n", sizeof (pCmdBlock->transmit.destAddr));
    printf ("length size = %d\n", sizeof (pCmdBlock->transmit.length));
    printf ("Transmitting %d bytes\n", pCmdBlock->transmit.tcbCount);
#endif

    memcpy (pCmdBlock->transmit.destAddr, pBuf, sizeof(node_address) + sizeof(UINT16) + ETHERMTU);

    rxSem = 0;	/* no Receive interrupt */

    sendCommand (CU_START, RU_NOP, ((UINT32)pCmdBlock));

    if (waitForInt() == ERROR) {
	printf ("No Transmit Interrupt\n");
	status = ERROR;
    }

    if (pCmdBlock->transmit.ok != 1) {	
	printf ("tx failed.  Status: 0x%04X.\n",
		pSCB->cmdStat.words.status);
	status = ERROR;
    }

    if (status == ERROR) {
	printf ("Transmit OK = %d\n", pCmdBlock->transmit.ok);
	return (ERROR);
    }

#if 1
    if (waitForRxInt() == ERROR) {
	printf ("No Receive Interrupt\n");
	status = ERROR;
    }

    if (pRfd->ok != 1) {
	printf ("rx failed.  Status: 0x%04X.\n", pSCB->cmdStat.words.status);
	status = ERROR;
    }

#if 1
    /* If RU still ready, hang for receive interrupt */
    if (pSCB->cmdStat.bits.rus == RU_READY)	{
	if (waitForRxInt() == ERROR)  {
	    printf ("No Receive Interrupt\n");