motfccend.c

操作系统vxworks平台下end设备的驱动程序,支持多种芯片,支持多种cpu

errorExit:
    motFccUnload (pDrvCtrl);
    return NULL;
    }

/*******************************************************************************
*
* motFccUnload - unload a driver from the system
*
* This routine unloads the driver pointed to by <pDrvCtrl> from the system.
*
* RETURNS: OK, always.
*
* SEE ALSO: motFccLoad()
*/
LOCAL STATUS motFccUnload
    (
    DRV_CTRL	*pDrvCtrl       /* pointer to DRV_CTRL structure */
    )
    {
    FCC_PARAM_T	*pParam;

    /* get to the beginning of the parameter area */

    pParam = pDrvCtrl->fccPar;

    MOT_FCC_LOG (MOT_FCC_DBG_LOAD, ("Unloading end..."), 1, 2, 3, 4, 5, 6);

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

    pDrvCtrl->loaded = FALSE;

    /* free allocated memory if necessary */

    if ((MOT_FCC_FLAG_ISSET (MOT_FCC_OWN_BUF_MEM)) && 
        (pDrvCtrl->pBufBase != NULL))
        {
	free (pDrvCtrl->pBufBase);
        }

    if ((MOT_FCC_FLAG_ISSET (MOT_FCC_OWN_BD_MEM)) && 
        (pDrvCtrl->pBdBase != NULL))
        {
	cacheDmaFree (pDrvCtrl->pBdBase);
        }
    else if ((MOT_FCC_USR_FLAG_ISSET(MOT_FCC_USR_DPRAM_ALOC)) && 
             (pDrvCtrl->pBdBase != NULL))
	{

	/* 
         * If pBdBase is not equal to NULL then it was allocated from the 
         * DPRAM pool 
         */

	_func_m82xxDpramFree((void*)pDrvCtrl->pBdBase);

	pDrvCtrl->pBdBase = NULL;
	}

    /* free allocated memory if necessary */

    if ((pDrvCtrl->pMBlkArea) != NULL)
	free (pDrvCtrl->pMBlkArea);

    END_OBJECT_UNLOAD (&pDrvCtrl->endObj);

    /* free the semaphores if necessary */

    MOT_FCC_GRA_SEM_DELETE;

    if ((char *) pDrvCtrl->phyInfo != NULL)
	cfree ((char *) pDrvCtrl->phyInfo);

    /* free allocated DPRAM memory if necessary */

    if ((MOT_FCC_USR_FLAG_ISSET(MOT_FCC_USR_DPRAM_ALOC)) && 
        (pParam->riptr != 0))
        {
        _func_m82xxDpramFccFree((void*)((ULONG)pParam->riptr));
        pParam->riptr = 0;
        }

    if ((MOT_FCC_USR_FLAG_ISSET(MOT_FCC_USR_DPRAM_ALOC)) && 
        (pParam->tiptr != 0))
	{
        _func_m82xxDpramFccFree((void*)((ULONG)pParam->tiptr));
        pParam->tiptr = 0;
	}

    MOT_FCC_LOG (MOT_FCC_DBG_LOAD, ("motFccUnload... Done\n"), 
				    1, 2, 3, 4, 5, 6);

    return (OK);
    }

/*******************************************************************************
*
* motFccInitParse - parse parameter values from initString
*
* This routine parses parameter values from initString and stores them in
* the related fiels of the driver control structure.
*
* RETURNS: OK or ERROR
*/
LOCAL STATUS motFccInitParse
    (
    DRV_CTRL *pDrvCtrl,      		/* pointer to DRV_CTRL structure */
    char     *initString		/* parameter string */
    )
    {
    char *  tok;		/* an initString token */
    char *  holder = NULL;	/* points to initString fragment beyond tok */

    tok = strtok_r (initString, ":", &holder);
    if (tok == NULL)
        {
	return ERROR;
        }
    pDrvCtrl->unit = (int) strtoul (tok, NULL, 16);

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

    pDrvCtrl->immrVal = (UINT32) strtoul (tok, NULL, 16);

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

    pDrvCtrl->fccNum = (UINT32) strtoul (tok, NULL, 16);

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

    pDrvCtrl->pBdBase = (char *) strtoul (tok, NULL, 16);

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

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

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

    pDrvCtrl->pBufBase = (char *) strtoul (tok, NULL, 16);

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

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

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

    pDrvCtrl->fifoTxBase = (UINT32) strtoul (tok, NULL, 16);

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

    pDrvCtrl->fifoRxBase = (UINT32) strtoul (tok, NULL, 16);

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

    pDrvCtrl->tbdNum = (UINT16) strtoul (tok, NULL, 16);

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

    pDrvCtrl->rbdNum = (UINT16) strtoul (tok, NULL, 16);

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

    pDrvCtrl->phyInfo->phyAddr = (UINT8) strtoul (tok, NULL, 16);

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

    pDrvCtrl->phyInfo->phyDefMode = (UINT8) strtoul (tok, NULL, 16);

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

    pDrvCtrl->phyInfo->phyAnOrderTbl = (MII_AN_ORDER_TBL *) 
					strtoul (tok, NULL, 16);

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

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

    /* mblkMult is optional */

    pDrvCtrl->mblkMult = 5;
    tok = strtok_r (NULL, ":", &holder);
    if (tok  != NULL)
        pDrvCtrl->mblkMult = strtoul (tok, NULL, 16);

    /* clMult is optional */

    pDrvCtrl->clMult =  6;
    tok = strtok_r (NULL, ":", &holder);
    if (tok != NULL)
        pDrvCtrl->clMult = strtoul (tok, NULL, 16);

    /* txJobMsgQLen is optional */

    pDrvCtrl->txJobMsgQLen = 128;
    tok = strtok_r (NULL, ":", &holder);
    if (tok != NULL)
        pDrvCtrl->txJobMsgQLen = strtoul (tok, NULL, 16);

    if (!pDrvCtrl->tbdNum || pDrvCtrl->tbdNum <= 2)
	{
	MOT_FCC_FLAG_SET (MOT_FCC_INV_TBD_NUM);
	pDrvCtrl->tbdNum = MOT_FCC_TBD_DEF_NUM;
	}

    if (!pDrvCtrl->rbdNum || pDrvCtrl->rbdNum <= 2)
	{
	MOT_FCC_FLAG_SET (MOT_FCC_INV_RBD_NUM);
	pDrvCtrl->rbdNum = MOT_FCC_RBD_DEF_NUM; 
	}

    MOT_FCC_LOG (MOT_FCC_DBG_LOAD,
		 ("motFccEndParse: unit=%d immrVal=0x%x 
		 bufBase=0x%x bufSize=0x%x,
		 bdBase=0x%x bdSize=0x%x \n"),
		 pDrvCtrl->unit, 
		 (int) pDrvCtrl->immrVal,
		 (int) pDrvCtrl->pBufBase,
		 pDrvCtrl->bufSize,
		 (int) pDrvCtrl->pBdBase,
		 pDrvCtrl->bdSize);

    MOT_FCC_LOG (MOT_FCC_DBG_LOAD,
		 ("motFccEndParse: fifoTxBase=0x%x fifoRxBase=0x%x
		 tbdNum=%d rbdNum=%d flags=0x%x fccNum=%d\n"),
		 pDrvCtrl->fifoTxBase,
		 pDrvCtrl->fifoRxBase,
		 pDrvCtrl->tbdNum,
		 pDrvCtrl->rbdNum,
		 pDrvCtrl->userFlags,
		 pDrvCtrl->fccNum);

    MOT_FCC_LOG (MOT_FCC_DBG_LOAD,
                 ("motFccEndParse: phyAddr=0x%x 
                  phyDefMode=0x%x orderTbl=0x%x \n"),
                 pDrvCtrl->phyInfo->phyAddr,
                 pDrvCtrl->phyInfo->phyDefMode,
                 (int) pDrvCtrl->phyInfo->phyAnOrderTbl,
                 0, 0, 0);
    return (OK);
    }

/*******************************************************************************
* motFccInitMem - initialize memory
*
* This routine initializes all the memory needed by the driver whose control
* structure is passed in <pDrvCtrl>.
*
* RETURNS: OK or ERROR
*/
LOCAL STATUS motFccInitMem 
    (
    DRV_CTRL *pDrvCtrl
    )
    {
    UINT32		bdMemSize,rbdMemSize,tbdMemSize;
    UINT16		clNum;		/* a buffer number holder */

    /* cluster blocks configuration */

    M_CL_CONFIG	mclBlkConfig = {0, 0, NULL, 0};

    /* cluster blocks config table */

    CL_DESC		clDescTbl [] = { {MOT_FCC_MAX_CL_LEN, 0, NULL, 0} };

    /* number of different clusters sizes in pool -- only 1 */

    int		clDescTblNumEnt = 1;

    /* initialize the netPool */

    if ((pDrvCtrl->endObj.pNetPool = malloc (sizeof (NET_POOL))) == NULL)
        {
	return ERROR;
        }

    /* 
     * Establish the memory area that we will share with the device.  This
     * area may be thought of as being divided into two parts: one is the 
     * buffer descriptors (BD) and the second one is for the data buffers. 
     * Since they have different requirements as far as cache are concerned,
     * they may be addressed separately.
     * We'll deal with the BDs area first.  If the caller has provided 
     * an area, then we assume it is non-cacheable and will not require 
     * the use of the special cache routines. If the caller has not provided 
     * an area, then we must obtain it from the system, using the cache 
     * savvy allocation routine.
     */

    switch ((int) pDrvCtrl->pBdBase) 
        {
        case NONE :			     /* we must obtain it */

	/* this driver can't handle write incoherent caches */

	    if (!CACHE_DMA_IS_WRITE_COHERENT ()) 
                {
	        MOT_FCC_LOG (MOT_FCC_DBG_LOAD, 
                            "motFccInitMem: shared memory not cache coherent\n",
                            0,0,0,0,0,0);

	        return ERROR;
	        }

	    rbdMemSize = MOT_FCC_RBD_SZ * pDrvCtrl->rbdNum;
	    tbdMemSize = MOT_FCC_TBD_SZ * pDrvCtrl->tbdNum;
	    bdMemSize = rbdMemSize + tbdMemSize + MOT_FCC_BD_ALIGN;
	    pDrvCtrl->pBdBase = cacheDmaMalloc(bdMemSize);

	    if (pDrvCtrl->pBdBase == NULL)
                {     
                /* no memory available */
	        MOT_FCC_LOG (MOT_FCC_DBG_LOAD, 
                             "motFccInitMem: could not obtain memory\n",
                             0,0,0,0,0,0);
	        return ERROR;
	        }

	    pDrvCtrl->bdSize = bdMemSize;
	    MOT_FCC_FLAG_SET (MOT_FCC_OWN_BD_MEM);
	    pDrvCtrl->bdCacheFuncs = cacheDmaFuncs;
	    break;

        default :	       /* the user provided an area */