sysnet.c

MPC8241:本程序是freescale的824*系列的BSP源程序

/* sysNet.c - template system network initialization */

/* Copyright 1984-2000 Wind River Systems, Inc. */
/* Copyright 1999-2000 Motorola, Inc., All Rights Reserved */

/*
modification history
--------------------
01a,14apr00,rhk  created (from version 01a of mv5100/sysNet.c).
*/

/*
DESCRIPTION

This library contains board-specific routines for network subsystems.
*/


/* includes */

#include "vxWorks.h"
#include "taskLib.h"
#include "config.h"

#if defined (INCLUDE_NETWORK)

/* forward declarations */

#if defined(INCLUDE_NETWORK) && defined(INCLUDE_END)
    IMPORT void sysPciInit (void);
#endif /* defined(INCLUDE_NETWORK) && defined(INCLUDE_END) */

#ifdef INCLUDE_DEVGALNET
    IMPORT STATUS sysGTPciInit(void);
#endif

/******************************************************************************
*
* sysNetHwInit - initialize the network interface
*
* This routine initializes the network hardware to a quiescent state.  It
* does not connect interrupts.
*
* Only polled mode operation is possible after calling this routine.
* Interrupt mode operation is possible after the memory system has been
* initialized and sysNetHwInit2() has been called.
*/

void sysNetHwInit (void)
    {
    }


/******************************************************************************
*
* sysNetHwInit2 - initialize additional features of the network interface
*
* This routine completes initialization needed for interrupt mode operation
* of the network device drivers.  Interrupt handlers can be connected.
* Interrupt or DMA operations can begin.
*/

void sysNetHwInit2 (void)
    {
/* 	printf("\n %s(%d) In sysNetHwInit2",__FILE__,__LINE__);
  sysPciInit();*/
#ifdef INCLUDE_DEVGALNET
  sysGTPciInit();
#endif
    }

#endif /* INCLUDE_NETWORK */


/******************************************************************************
*
* sysLanIntEnable - enable the LAN interrupt
*
* This routine enables interrupts at a specified level 
*
* RETURNS: OK, or ERROR if network support not included.
*
* SEE ALSO: sysLanIntDisable()
*/

STATUS sysLanIntEnable
    (
    int intLevel 		/* interrupt level to enable */
    )
    {

#if defined (INCLUDE_NETWORK)

    /* enable the IRQ for LAN */

    intEnable (intLevel);
    return (OK);
#else
    return (ERROR);
#endif
    }


/******************************************************************************
*
* sysLanIntDisable - disable the LAN interrupt
*
* This routine has been modified and is temporarily a stub. Changes to the WRS
* 21x40End driver are required to switch from a dedicated interrupt line for the
* Ethernet chip to the bussed PCI interrupt structure used by the PPMC750. This
* change is also required to support Ethernet chips resident on PMC sites. WRS
* has assigned SPR #27879 to track the 21x40End driver change.
*
* RETURNS: return of intDisable, or ERROR if network support not included.
*
* SEE ALSO: sysLanIntEnable()
*/

STATUS sysLanIntDisable
    (
    int intLevel 		/* interrupt level to enable */
    )
    {
#if defined (INCLUDE_NETWORK)
    return (OK);
#else
    return (ERROR);
#endif
    }