motfccend.c

motorola 8260 CPU上面

/*******************************************************************************
*
* 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 */
    )
    {
    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);

    /* 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);

    if ((char *) pDrvCtrl != NULL)
	cfree ((char *) pDrvCtrl);

    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);

    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,
		 pDrvCtrl->pBufBase,
		 pDrvCtrl->bufSize,
		 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,
                 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       		/* pointer to DRV_CTRL structure */
    )
    {
    UINT32		bdSize;	   	/* temporary size holder */
    UINT16		clNum;		/* a buffer number holder */
    M_CL_CONFIG	 	mclBlkConfig = {0, 0, NULL, 0};
					/* cluster blocks configuration */
    CL_DESC	 	clDescTbl [] = { {MOT_FCC_MAX_CL_LEN, 0, NULL, 0} };
					/* cluster blocks config table */
    int clDescTblNumEnt = (NELEMENTS (clDescTbl));
					/* number of different clusters */

    /* initialize the netPool */

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

    /* 
     * we include here room for both TBDs and RBDs, 
     * and the alignment factor.
     */

    bdSize = (MOT_FCC_BD_MEM (pDrvCtrl) + MOT_FCC_BD_ALIGN);

    /* 
     * Establish the memory area that we will share with the device.  This
     * area may be thought of as being devided 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"),
					        1, 2, 3, 4, 5, 6);
		return (ERROR);
		}

	    pDrvCtrl->pBdBase = cacheDmaMalloc (bdSize);
	    if (pDrvCtrl->pBdBase == NULL)      /* no memory available */
		{
		MOT_FCC_LOG (MOT_FCC_DBG_LOAD, ("motFccInitMem: could not 
					        obtain memory\n"),
					        1, 2, 3, 4, 5, 6);

		return (ERROR);
		}


	    pDrvCtrl->bdSize = bdSize;

	    MOT_FCC_FLAG_SET (MOT_FCC_OWN_BD_MEM);

	    pDrvCtrl->bdCacheFuncs = cacheDmaFuncs;

	    break;

	default :			       /* the user provided an area */

	    if (pDrvCtrl->bdSize == 0) 
		{
		MOT_FCC_LOG (MOT_FCC_DBG_LOAD, ("motFccInitMem: not enough 
					        memory\n"),
					        1, 2, 3, 4, 5, 6);
		return (ERROR);
		}

	    /* 
	     * check the user provided enough memory with reference
	     * to the given number of receive/transmit frames, if any.
	     */

	    if (MOT_FCC_FLAG_ISSET (MOT_FCC_INV_TBD_NUM) && 
		MOT_FCC_FLAG_ISSET (MOT_FCC_INV_RBD_NUM))
		{
		pDrvCtrl->tbdNum = (MOT_FCC_BD_MEM_SZ (pDrvCtrl) /
				    (MOT_FCC_TBD_SZ + MOT_FCC_RBD_SZ));

		pDrvCtrl->rbdNum = pDrvCtrl->tbdNum;
		}
	    else if (MOT_FCC_FLAG_ISSET (MOT_FCC_INV_TBD_NUM))
		{
		pDrvCtrl->tbdNum = ((MOT_FCC_BD_MEM_SZ (pDrvCtrl)
				    - MOT_FCC_RBD_MEM (pDrvCtrl))
				    / MOT_FCC_TBD_SZ);
		}
	    else if (MOT_FCC_FLAG_ISSET (MOT_FCC_INV_RBD_NUM))
		{
		pDrvCtrl->rbdNum = ((MOT_FCC_BD_MEM_SZ (pDrvCtrl)
				    - MOT_FCC_TBD_MEM (pDrvCtrl))
				    / MOT_FCC_RBD_SZ);
		}
	    else
		{
		if (MOT_FCC_BD_MEM_SZ (pDrvCtrl) < bdSize) 
		    {
		    MOT_FCC_LOG (MOT_FCC_DBG_LOAD, ("motFccInitMem: not enough 
						   memory\n"),
						   1, 2, 3, 4, 5, 6);
		    return (ERROR);
		    }
		}

	    if ((pDrvCtrl->tbdNum <= MOT_FCC_TBD_MIN) 
		|| (pDrvCtrl->rbdNum <= MOT_FCC_RBD_MIN))
		{
		MOT_FCC_LOG (MOT_FCC_DBG_LOAD, ("motFccInitMem: not enough 
					        BDs\n"),
					        1, 2, 3, 4, 5, 6);
		return (ERROR);
		}

	    MOT_FCC_FLAG_CLEAR (MOT_FCC_OWN_BD_MEM);

	    pDrvCtrl->bdCacheFuncs = cacheNullFuncs;

	    break;
	}

    /* zero the shared memory */

    memset (pDrvCtrl->pBdBase, 0, (int) pDrvCtrl->bdSize);

    /* align the shared memory */

    pDrvCtrl->pBdBase = (char *) (((UINT32) (pDrvCtrl->pBdBase) +
				  MOT_FCC_BD_ALIGN - 1) &
                                  ~(MOT_FCC_BD_ALIGN - 1));
 
    /* 
     * number of clusters, including loaning buffers, a min number
     * of transmit clusters for copy-mode transmit, and one transmit
     * cluster for polling operation.
     */

    clNum = pDrvCtrl->rbdNum + MOT_FCC_BD_LOAN_NUM
	    + MOT_FCC_TX_POLL_NUM + MOT_FCC_TX_CL_NUM;

    /* pool of mblks */

    if (mclBlkConfig.mBlkNum == 0)
	mclBlkConfig.mBlkNum = clNum * 2;

    /* pool of clusters, including loaning buffers */

    if (clDescTbl[0].clNum == 0)
	{
	clDescTbl[0].clNum = clNum;
	clDescTbl[0].clSize = MOT_FCC_MAX_CL_LEN;
	}

    /* there's a cluster overhead and an alignment issue */

    clDescTbl[0].memSize = (clDescTbl[0].clNum * 
			    (clDescTbl[0].clSize + CL_OVERHEAD)
			    + CL_ALIGNMENT - 1);

    /*
     * Now we'll deal with the data buffers.  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, but we will not be
     * using the cache savvy allocation routine, since we will flushing or
     * invalidate the data cache itself as appropriate. This speeds up
     * driver operation, as the network stack will be able to process data
     * in a cacheable area.
     */

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

	    clDescTbl[0].memArea = (char *) (memalign (CL_ALIGNMENT, 
						       clDescTbl[0].memSize));

	    if (clDescTbl[0].memArea == NULL)
		{
		MOT_FCC_LOG (MOT_FCC_DBG_LOAD, ("motFccInitMem: could not