/* * File:  intDisconnect.c * Date:  September 1996 * * Description: * ----------- * This function un-installs an interrupt service routine on a Tornado/PPC board * */#include <vxWorks.h>#include <stdlib.h>#include <stdio.h>#include <symbol.h>#include <sysSymTbl.h>#include <iv.h>#include <intLib.h>/*#include <drv/intrCtl/i82378zb.h>*/typedef struct intHandlerDesc           /* interrupt handler desciption */    {    VOIDFUNCPTR                 vec;    /* interrupt vector */    int                         arg;    /* interrupt handler argument */    struct intHandlerDesc *     next;   /* next interrupt handler & argument */    } INT_HANDLER_DESC;extern sysIntTbl[];extern sysVmeIntTable[];STATUS intDisconnect();LOCAL int handlerDelete();/****************************************************************************** * * intDisconnect - un-install an ISR * * This routine un-installs an ISR from the interrupt vector table used by * the local and VMEbus interrupt dispatchers. * *****************************************************************************/STATUSintDisconnect(int vector){  INT_HANDLER_DESC *handler;  if (vector < 16)    {      printf("ERROR: cannot disconnect a local bus ISR with intDisconnect\n");      return(ERROR);    }  if (vector > 255)    {      printf("ERROR: interrupt vector out of range\n");      return(ERROR);    }  handler = (INT_HANDLER_DESC *)sysIntTbl[(int)vector];  if (handler != NULL)    {      printf("disconnecting vector %d \n", vector);      handlerDelete(handler);      sysIntTbl[(int)vector] = NULL;    }  return(OK);}/****************************************************************************** * * handlerDelete() - recursively deletes ISRs from sysIntTbl vector * *****************************************************************************/LOCAL inthandlerDelete(INT_HANDLER_DESC *handler){  if (handler->next != NULL)    {      handlerDelete(handler->next);    }  free(handler);  handler = NULL;  return(OK);}