secend.c

S3c2510下的VXWORKS的BSP源代码（包括了以太网、串口、USB等等驱动）

        error = secEndMCastAddrDel(pDrvCtrl, (UCHAR *)data);
        break;

    case EIOCMULTIGET:
#ifdef  DEBUG_TRACE
        printf("EIOCMULTIGET\n");
#endif  /* DEBUG_TRACE */

        /* Retrieve a table of multicast addresses. */
        error = secEndMCastAddrGet(pDrvCtrl, (MULTI_TABLE *)data);
        break;

    case EIOCPOLLSTART:
#ifdef  DEBUG_TRACE
        printf("EIOCPOLLSTART\n");
#endif  /* DEBUG_TRACE */

        /* Start polling mode. */
        error = DRV_POLL_START(pDrvCtrl);
        break;

    case EIOCPOLLSTOP:
#ifdef  DEBUG_TRACE
        printf("EIOCPOLLSTOP\n");
#endif  /* DEBUG_TRACE */

        /* Stop polling mode. */
        error = DRV_POLL_STOP(pDrvCtrl);
        break;

    case EIOCGMIB2:  
#ifdef  DEBUG_TRACE
        printf("EIOCGMIB2\n");
#endif  /* DEBUG_TRACE */

        /* Get MIB2 table. */
        bcopy ((char *)&pEndObj->mib2Tbl, (char *)data, sizeof(pEndObj->mib2Tbl));
        break;

    case EIOCGNPT:
#ifdef  DEBUG_TRACE
        printf("EIOCGNPT\n");
#endif  /* DEBUG_TRACE */

        error = EINVAL;
        break;

    case EIOCGHDRLEN:
#ifdef  DEBUG_TRACE
        printf("EIOCGHDRLEN\n");
#endif  /* DEBUG_TRACE */

        *(long *)data = ENET_HDR_REAL_SIZ;
        break;

    default:
#ifdef  DEBUG_TRACE
        printf("\n");
#endif  /* DEBUG_TRACE */
        printf("secEnd%d Error: Unknown IOCTL command(0x%08X)\n", pDrvCtrl->unit, cmd);

        error = EINVAL;
        break;
    }

    return (error);
}

/*******************************************************************************
*
* secEndSend - the driver send routine
*
* This routine takes a M_BLK_ID sends off the data in the M_BLK_ID. The buffer
* must already have the addressing information properly installed in it. This is
* done by a higher layer. The last arguments are a free routine to be called
* when the device is done with the buffer and a pointer to the argument to pass
* to the free routine.
*
* RETURNS: OK, ERROR, or END_ERR_BLOCK.
*/

LOCAL STATUS secEndSend(
    DRV_CTRL *pDrvCtrl,                                     /* pointer to DRV_CTRL structure */
    M_BLK_ID pMblk                                          /* pointer to the mBlk/cluster pair */
    )
{
    STATUS status;

#ifdef  DEBUG_TRACE
    printf("secEnd%d Send\n", pDrvCtrl->unit);
#endif  /* DEBUG_TRACE */

    END_TX_SEM_TAKE(&pDrvCtrl->endObj, WAIT_FOREVER);

    /* Send data. */
    status = DRV_SEND(pDrvCtrl, pMblk);

    END_TX_SEM_GIVE(&pDrvCtrl->endObj);

    return (status);
}

/*****************************************************************************
*
* secEndMCastAddrAdd - 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 secEndMCastAddrAdd(
    DRV_CTRL *pDrvCtrl,                                     /* pointer to DRV_CTRL structure */
    UCHAR *pAddr                                            /* address to be added */
    )
{
    int retVal;

#ifdef  DEBUG_TRACE
    printf("secEnd%d MCastAddrAdd\n", pDrvCtrl->unit);
#endif  /* DEBUG_TRACE */

    /* Add multicast address to a multicast address list. */
    retVal = etherMultiAdd(&pDrvCtrl->endObj.multiList, pAddr);

    if (retVal == ENETRESET)
    {
        /* Program multicast address. */
        retVal = DRV_MCAST_ADD(pDrvCtrl, pAddr);
    }

    return (retVal);
}

/*****************************************************************************
*
* secEndMCastAddrDel - 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 secEndMCastAddrDel(
    DRV_CTRL *pDrvCtrl,                                     /* pointer to DRV_CTRL structure */
    UCHAR *pAddr                                            /* address to be deleted */
    )
{
    int retVal;

#ifdef  DEBUG_TRACE
    printf("secEnd%d MCastAddrDel\n", pDrvCtrl->unit);
#endif  /* DEBUG_TRACE */

    /* Delete multicast address from a multicast address list. */
    retVal = etherMultiDel(&pDrvCtrl->endObj.multiList, pAddr);

    while (retVal == ENETRESET)
    {
        /* Stop the device. */
        DRV_STOP(pDrvCtrl);

        /* Program multicast address. */
        retVal = DRV_MCAST_DEL(pDrvCtrl, pAddr);

        /* Restart the device. */
        DRV_START(pDrvCtrl);
    }

    return (retVal);
}

/*****************************************************************************
*
* secEndMCastAddrGet - 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 secEndMCastAddrGet(
    DRV_CTRL *pDrvCtrl,                                     /* pointer to DRV_CTRL structure */
    MULTI_TABLE *pTable                                     /* table into which to copy addresses */
    )
{
#ifdef  DEBUG_TRACE
    printf("secEnd%d MCastAddrGet\n", pDrvCtrl->unit);
#endif  /* DEBUG_TRACE */

    /* Retrieve a table of multicast addresses from a driver. */
    return (etherMultiGet(&pDrvCtrl->endObj.multiList, pTable));
}

/*******************************************************************************
*
* secEndPollSend - routine to send a packet in polled mode
*
* This routine is called by a user to try and send a packet on the device.
*
* RETURNS: OK upon success.  EAGAIN if device is busy.
*/

LOCAL STATUS secEndPollSend(
    DRV_CTRL *pDrvCtrl,                                     /* pointer to DRV_CTRL structure */
    M_BLK_ID pMblk                                          /* pointer to the mBlk/cluster pair */
    )
{
#ifdef  DEBUG_TRACE
    printf("secEnd%d PollSend\n", pDrvCtrl->unit);
#endif  /* DEBUG_TRACE */

    while (1)
    {
        if (pMblk == NULL)
        {
            printf("secEnd%d Error: NULL tansmit M_BLK\n", pDrvCtrl->unit);

            break;
        }

        /* Send data. */
        return DRV_POLL_SEND(pDrvCtrl, pMblk);
    }

    END_ERR_ADD(&pDrvCtrl->endObj, MIB2_OUT_ERRS, +1);

    return EAGAIN;
}

/*******************************************************************************
*
* secEndPollReceive - routine to receive a packet in polled mode
*
* This routine is called by a user to try and get a packet from the device.
*
* RETURNS: OK upon success.  EAGAIN is returned when no packet is available.
*/

LOCAL STATUS secEndPollReceive(
    DRV_CTRL *pDrvCtrl,                                     /* pointer to DRV_CTRL structure */
    M_BLK_ID pMblk                                          /* pointer to the mBlk/cluster pair */
    )
{
#ifdef  DEBUG_TRACE
    printf("secEnd%d PollReceive\n", pDrvCtrl->unit);
#endif  /* DEBUG_TRACE */

    while (1)
    {
        if (pMblk == NULL)
        {
            printf("secEnd%d Error: NULL receive M_BLK\n", pDrvCtrl->unit);

            break;
        }

        /* If not has an associated cluster, avoid operation. */
        if (!(pMblk->mBlkHdr.mFlags & M_EXT))
        {
            printf("secEnd%d Error: Invalid receive M_BLK\n", pDrvCtrl->unit);

            break;
        }

        /* Receive data if available. */
        return DRV_POLL_RECEIVE(pDrvCtrl, pMblk);
    }

    END_ERR_ADD(&pDrvCtrl->endObj, MIB2_IN_ERRS, +1);

    return EAGAIN;
}

/*******************************************************************************
*
* secEndInitParse - parse the init string
*
* Parse the input string. Fill in values in the driver control structure.
*
* The muxLib.o module automatically prepends the unit number to the user's
* initialization string from the BSP (configNet.h).
*
* RETURNS: OK or ERROR for invalid arguments.
*/

LOCAL STATUS secEndInitParse(
    DRV_CTRL *pDrvCtrl,                                     /* pointer to DRV_CTRL structure */
    char *initString                                        /* parameter string */
    )
{
    char *tok;
    char *holder = NULL;

#ifdef  DEBUG_TRACE
    printf("secEnd InitParse, %s\n", initString);
#endif  /* DEBUG_TRACE */

    tok = strtok_r(initString, ":", &holder);
    if (tok == NULL)
    {
        return ERROR;
    }

    pDrvCtrl->unit = (int)strtoul(tok, NULL, 16);

    /* Sanity check the unit number. */
    if (pDrvCtrl->unit < 0)
    {
        printf("secEnd Error: Invalid unit number, %d\n", pDrvCtrl->unit);

        return ERROR;
    }

    return OK;
}

/*******************************************************************************
*
* secEndInitMem - initialize memory for the chip
*
* This routine is highly specific to the device.
*
* RETURNS: OK or ERROR.
*/

LOCAL STATUS secEndInitMem(
    DRV_CTRL *pDrvCtrl                                      /* pointer to DRV_CTRL structure */
    )
{
    M_CL_CONFIG mClBlkConfig;                               /* mBlk, clBlk pool configuration table. */
    CL_DESC clDescTbl[SEC_END_NUM_CL_TYPE];                 /* cluster pool configuration table. */

#ifdef  DEBUG_TRACE
    printf("secEnd%d InitMem\n", pDrvCtrl->unit);
#endif  /* DEBUG_TRACE */

    /* Allocate the netPool. */
    if ((pDrvCtrl->endObj.pNetPool = malloc(sizeof(NET_POOL))) == NULL)
    {
        return (ERROR);
    }

    /* Initialize mBlk/clBlk pool. */
    mClBlkConfig.mBlkNum    = DRV_NUM_MBLK;
    mClBlkConfig.clBlkNum   = DRV_NUM_MBLK;

    mClBlkConfig.memSize    = mClBlkConfig.mBlkNum * (M_BLK_SZ + sizeof(long)) +
                              mClBlkConfig.clBlkNum * CL_BLK_SZ;
    mClBlkConfig.memArea    = (char *)memalign(MBLK_ALIGNMENT, mClBlkConfig.memSize);

    if (mClBlkConfig.memArea == NULL)
    {
        printf("secEnd%d Error: Failed to allocate mBlk/clBlk pool\n", pDrvCtrl->unit);

        return (ERROR);
    }

    /* Save the pointer to the mBlock/cBlk pool area. */
    pDrvCtrl->pMblkArea = (void *)mClBlkConfig.memArea;

    /* Initialize cluster pool. */
    clDescTbl[0].clSize     = SIZE_FB - CL_OVERHEAD;
    clDescTbl[0].clNum      = DRV_NUM_CLUSTER;
    clDescTbl[0].memSize    = SIZE_FB * DRV_NUM_CLUSTER;
    clDescTbl[0].memArea    = (char *)(DRV_CLUSTER_MEM_BASE + DRV_CLUSTER_MEM_SIZE * pDrvCtrl->unit);

#ifdef  DEBUG_TRACE
    printf("    mBlk/clBlk pool     : 0x%08X\n", (UINT32)mClBlkConfig.memArea);
    printf("    cluster pool        : 0x%08X\n", (UINT32)clDescTbl[0].memArea);
#endif  /* DEBUG_TRACE */

    /* Initialize the netPool. */
    if (netPoolInit(pDrvCtrl->endObj.pNetPool, &mClBlkConfig, &clDescTbl[0], SEC_END_NUM_CL_TYPE, NULL) == ERROR)
    {
        printf("secEnd%d Error: Failed to initialize netPool\n", pDrvCtrl->unit);

        return (ERROR);
    }

    /* Save cluster pool. */
    if ((pDrvCtrl->pClPool = netClPoolIdGet(pDrvCtrl->endObj.pNetPool, DRV_SIZE_CLUSTER, FALSE)) == NULL)
    {
        printf("secEnd%d Error: Failed to get clPool\n", pDrvCtrl->unit);

        return (ERROR);
    }

#ifdef  DEBUG_TRACE
    printf("    pNetPool->mBlkCnt   : %d\n", pDrvCtrl->endObj.pNetPool->mBlkCnt);
    printf("    pNetPool->mBlkFree  : %d\n", pDrvCtrl->endObj.pNetPool->mBlkFree);
    printf("    pNetPool->clLg2Max  : %d\n", pDrvCtrl->endObj.pNetPool->clLg2Max);
    printf("    pNetPool->clSizeMax : %d\n", pDrvCtrl->endObj.pNetPool->clSizeMax);
    printf("    pNetPool->clLg2Min  : %d\n", pDrvCtrl->endObj.pNetPool->clLg2Min);
    printf("    pNetPool->clSizeMin : %d\n", pDrvCtrl->endObj.pNetPool->clSizeMin);
    printf("    pClPool->clSize     : %d\n", pDrvCtrl->pClPool->clSize);
    printf("    pClPool->clLg2      : %d\n", pDrvCtrl->pClPool->clLg2);
    printf("    pClPool->clNum      : %d\n", pDrvCtrl->pClPool->clNum);
    printf("    pClPool->clNumFree  : %d\n", pDrvCtrl->pClPool->clNumFree);
#endif  /* DEBUG_TRACE */

    /* Change cluster size to real size. */
    pDrvCtrl->pClPool->clSize = DRV_SIZE_CLUSTER;

    return OK;
}