secend.c

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

/* secEnd.c - END style SAMSUNG S3C2500 Ethernet network interface driver  */

/* Copyright 2002 SAMSUNG ELECTRONICS */


/*
modification history
--------------------
01a,08feb02,jmLee   created.
*/


#include "vxWorks.h"
#include "intLib.h"
#include "errno.h"
#include "net/mbuf.h"
#include "net/unixLib.h"
#include "net/protosw.h"
#include "sys/socket.h"
#include "sys/ioctl.h"
#include "net/route.h"

#include "cacheLib.h"
#include "logLib.h"
#include "netLib.h"
#include "stdio.h"
#include "stdlib.h"
#include "sysLib.h"
#include "taskLib.h"

#include "net/systm.h"
#include "sys/times.h"
#include "net/if_subr.h"

#undef  ETHER_MAP_IP_MULTICAST
#include "etherMultiLib.h"
#include "end.h"
#include "semLib.h"

#define END_MACROS
#include "endLib.h"
#include "miiLib.h"
#include "lstLib.h"

#include "config.h"
#include "drv/end/secEnd.h"


/* Defines */

#undef  DEBUG_TRACE
#define DEBUG_LOG(x, p1, p2, p3, p4, p5, p6) \
        logMsg(x, (int)(UINT32)(p1), (int)(UINT32)(p2), (int)(UINT32)(p3), (int)(UINT32)(p4), (int)(UINT32)(p5), (int)(UINT32)(p6))


/* Forward Function Declarations */

LOCAL STATUS    secEndInitParse(DRV_CTRL *pDrvCtrl, char *initString);
LOCAL STATUS    secEndInitMem(DRV_CTRL *pDrvCtrl);

LOCAL STATUS    secEndUnload(DRV_CTRL *pDrvCtrl);
LOCAL STATUS    secEndStart(DRV_CTRL *pDrvCtrl);
LOCAL STATUS    secEndStop(DRV_CTRL *pDrvCtrl);
LOCAL STATUS    secEndUnload(DRV_CTRL *pDrvCtrl);
LOCAL int       secEndIoctl(DRV_CTRL *pDrvCtrl, int cmd, caddr_t data);
LOCAL STATUS    secEndSend(DRV_CTRL *pDrvCtrl, M_BLK_ID pMblk);
LOCAL STATUS    secEndMCastAddrAdd(DRV_CTRL *pDrvCtrl, UCHAR *pAddr);
LOCAL STATUS    secEndMCastAddrDel(DRV_CTRL *pDrvCtrl, UCHAR *pAddr);
LOCAL STATUS    secEndMCastAddrGet(DRV_CTRL *pDrvCtrl, MULTI_TABLE *pTable);
LOCAL STATUS    secEndPollSend(DRV_CTRL *pDrvCtrl, M_BLK_ID pMblk);
LOCAL STATUS    secEndPollReceive(DRV_CTRL *pDrvCtrl, M_BLK_ID pMblk);


/* Declare our function table. This is static across all driver instances. */

LOCAL NET_FUNCS endFuncTable = {
    (FUNCPTR)secEndStart,                                   /* start func. */
    (FUNCPTR)secEndStop,                                    /* stop func. */
    (FUNCPTR)secEndUnload,                                  /* unload func. */
    (FUNCPTR)secEndIoctl,                                   /* ioctl func. */
    (FUNCPTR)secEndSend,                                    /* send func. */
    (FUNCPTR)secEndMCastAddrAdd,                            /* multicast add func. */
    (FUNCPTR)secEndMCastAddrDel,                            /* multicast delete func. */
    (FUNCPTR)secEndMCastAddrGet,                            /* multicast get fun. */
    (FUNCPTR)secEndPollSend,                                /* polling send func. */
    (FUNCPTR)secEndPollReceive,                             /* polling receive func. */
    endEtherAddressForm,                                    /* put address info into a NET_BUFFER */
    (FUNCPTR)endEtherPacketDataGet,                         /* get pointer to data in NET_BUFFER */
    (FUNCPTR)endEtherPacketAddrGet                          /* Get packet addresses */
};


/*******************************************************************************
*
* secEndLoad - initialize the driver and device
*
* This routine initializes the driver and the device to the operational state.
* All of the device specific parameters are passed in the initString.
*
* The string contains the target specific parameters like this:
*
* "unit number:"
*
* RETURNS: An END object pointer or NULL on error.
*/

END_OBJ* secEndLoad(
    char *initString                                        /* parameter string */
    )
{
    DRV_CTRL *pDrvCtrl;                                     /* pointer to DRV_CTRL structure */
    UCHAR enetAddr[SEC_END_ADDR_LEN];                       /* ethernet address */

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

    if (initString == NULL)
    {
        printf("secEnd Error: NULL parameter string\n");

        return NULL;
    }

    if (initString[0] == 0)
    {
        bcopy((char *)SEC_END_DEV_NAME, (char *)initString, SEC_END_DEV_NAME_LEN);

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

        return NULL;
    }

    /* Allocate the device structure. */
    pDrvCtrl = (DRV_CTRL *)calloc(sizeof(DRV_CTRL), 1);
    if (pDrvCtrl == NULL)
    {
        printf("secEnd Error: Failed to allocate DRV_CTRL\n");

        return (NULL);
    }

    while (1)
    {
        /* Parse InitString. */
        if (secEndInitParse(pDrvCtrl, initString) != OK)
        {
            break;
        }

        /* Memory initialization. */
        if (secEndInitMem(pDrvCtrl) != OK)
        {
            break;
        }

        /* Initialize physical device. */
        if (DRV_INIT(pDrvCtrl) != OK)
        {
            break;
        }

        /* Initialize END object. */
        if (END_OBJ_INIT(
                &pDrvCtrl->endObj,
                (DEV_OBJ *)pDrvCtrl,
                SEC_END_DEV_NAME,
                pDrvCtrl->unit,
                &endFuncTable,
                SEC_END_DEV_DESCRIPTION
                ) == ERROR)
        {
            printf("secEnd%d Error: Failed to initialize END_OBJ\n", pDrvCtrl->unit);

            break;
        }

        /* Get ethernet hardware address. */
        sysSecEnetAddrGet(pDrvCtrl->unit, enetAddr);

        /* Initialize MIB. */
        if (END_MIB_INIT(
                &pDrvCtrl->endObj,
                M2_ifType_ethernet_csmacd, 
                enetAddr,
                SEC_END_ADDR_LEN,
                ETHERMTU,
                pDrvCtrl->phyInfo.phySpeed
                ) == ERROR)
        {
            printf("secEnd%d Error: Failed to initialize END_MIB\n", pDrvCtrl->unit);

            break;
        }

        /* Mark the device ready. */
        END_OBJ_READY(&pDrvCtrl->endObj, IFF_NOTRAILERS | IFF_MULTICAST | IFF_BROADCAST);

        return (&pDrvCtrl->endObj);
    }

    secEndUnload(pDrvCtrl);

    return NULL;
}

/******************************************************************************
*
* secEndUnload - unload a driver from the system
*
* This function first brings down the device, and then frees any stuff that was
* allocated by the driver in the load function.
*
* RETURNS: OK or ERROR.
*/

STATUS secEndUnload(
    DRV_CTRL *pDrvCtrl                                      /* pointer to DRV_CTRL structure */
    )
{
#ifdef  DEBUG_TRACE
    printf("secEnd%d Unload\n", pDrvCtrl->unit);
#endif  /* DEBUG_TRACE */

    if (pDrvCtrl == NULL)
    {
        return ERROR;
    }

    /* Uninitialize END object. */
    END_OBJ_UNLOAD(&pDrvCtrl->endObj);

    /* Free buffer descriptor pool if necessary. */
    if (pDrvCtrl->pBdArea != NULL)
    {
        cacheDmaFree(pDrvCtrl->pBdArea);
    }

    /* Free cluster pool if necessary. */
    if (pDrvCtrl->pClArea != NULL)
    {
        free(pDrvCtrl->pClArea);
    }

    /* Free mBlk/clBlk pool if necessary. */
    if (pDrvCtrl->pMblkArea != NULL)
    {
        free(pDrvCtrl->pMblkArea);
    }

    /* Free netPool if necessary. */
    if (pDrvCtrl->endObj.pNetPool != NULL)
    {
        free(pDrvCtrl->endObj.pNetPool);
    }

    /* Free the device structure. */
    cfree((char *)pDrvCtrl);

    return OK;
}

/*******************************************************************************
*
* secEndStart - start the device
*
* This function calls BSP functions to connect interrupts and start the device
* running in interrupt mode.
*
* RETURNS: OK or ERROR
*
*/

LOCAL STATUS secEndStart(
    DRV_CTRL *pDrvCtrl                                      /* pointer to DRV_CTRL structure */
    )
{
#ifdef  DEBUG_TRACE
    printf("secEnd%d Start\n", pDrvCtrl->unit);
#endif  /* DEBUG_TRACE */

    /* Mark the interface as up. */
    END_FLAGS_SET(&pDrvCtrl->endObj, (IFF_UP | IFF_RUNNING));

    return DRV_START(pDrvCtrl);
}

/*******************************************************************************
*
* secEndStop - 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 secEndStop(
    DRV_CTRL *pDrvCtrl                                      /* pointer to DRV_CTRL structure */
    )
{
#ifdef  DEBUG_TRACE
    printf("secEnd%d Stop\n", pDrvCtrl->unit);
#endif  /* DEBUG_TRACE */

    /* Mark the interface as down. */
    END_FLAGS_CLR(&pDrvCtrl->endObj, (IFF_UP | IFF_RUNNING));

    return DRV_STOP(pDrvCtrl);
}

/*******************************************************************************
*
* secEndIoctl - the driver I/O control routine
*
* Process an ioctl request.
*
* RETURNS: A command specific response, usually OK or ERROR.
*/

LOCAL int secEndIoctl(
    DRV_CTRL *pDrvCtrl,                                     /* pointer to DRV_CTRL structure */
    int cmd,                                                /* command to process */
    caddr_t data                                            /* pointer to data */
    )
{
    int error = OK;
    END_OBJ *pEndObj = &pDrvCtrl->endObj;
    long value;

#ifdef  DEBUG_TRACE
    printf("secEnd%d Ioctl: ", pDrvCtrl->unit);
#endif  /* DEBUG_TRACE */

    switch (cmd)
    {
    case EIOCSADDR:
#ifdef  DEBUG_TRACE
        printf("EIOCSADDR\n");
#endif  /* DEBUG_TRACE */

        /* Stop the device. */
        DRV_STOP(pDrvCtrl);

        /* Save the enet address. */
        bcopy ((char *)data, END_HADDR(pEndObj), SEC_END_ADDR_LEN);

        /* Program the individual enet address. */
        error = DRV_ADDR_SET(pDrvCtrl);

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

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

        /* Retrieve the enet address. */
        bcopy (END_HADDR(pEndObj), (char *)data, SEC_END_ADDR_LEN);
        break;

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

        value = (long)data;
        if (value < 0)
        {
            value = -value;
            value--;
            END_FLAGS_CLR(pEndObj, value);
        }
        else
        {
            END_FLAGS_SET(pEndObj, value);
        }

        /* Set device flags. */
        error = DRV_FLAGS_SET(pDrvCtrl);
        break;

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

        /* Get device flags. */
        *(long *)data = END_FLAGS_GET(pEndObj);
        break;

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

        /* Add multicast address. */
        error = secEndMCastAddrAdd(pDrvCtrl, (UCHAR *)data);
        break;

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

        /* Delete multicast address. */