154 lines
4.1 KiB
C
154 lines
4.1 KiB
C
/* devMbbiTestAsyn.c */
|
||
/* base/src/dev $Id$ */
|
||
|
||
/* devMbbiTestAsyn.c - Device Support Routines for testing asynchronous processing*/
|
||
/*
|
||
* Original Author: Bob Dalesio
|
||
* Current Author: Marty Kraimer
|
||
* Date: 6-1-90
|
||
*
|
||
* Experimental Physics and Industrial Control System (EPICS)
|
||
*
|
||
* Copyright 1991, the Regents of the University of California,
|
||
* and the University of Chicago Board of Governors.
|
||
*
|
||
* This software was produced under U.S. Government contracts:
|
||
* (W-7405-ENG-36) at the Los Alamos National Laboratory,
|
||
* and (W-31-109-ENG-38) at Argonne National Laboratory.
|
||
*
|
||
* Initial development by:
|
||
* The Controls and Automation Group (AT-8)
|
||
* Ground Test Accelerator
|
||
* Accelerator Technology Division
|
||
* Los Alamos National Laboratory
|
||
*
|
||
* Co-developed with
|
||
* The Controls and Computing Group
|
||
* Accelerator Systems Division
|
||
* Advanced Photon Source
|
||
* Argonne National Laboratory
|
||
*
|
||
* Modification Log:
|
||
* -----------------
|
||
* .01 11-11-91 jba Moved set of alarm stat and sevr to macros
|
||
* .02 01-08-92 jba Added cast in call to wdStart to avoid compile warning msg
|
||
* .03 02-05-92 jba Changed function arguments from paddr to precord
|
||
* .04 03-13-92 jba ANSI C changes
|
||
* .05 04-10-92 jba pact now used to test for asyn processing, not return value
|
||
* .06 04-05-94 mrk ANSI changes to callback routines
|
||
* ...
|
||
*/
|
||
|
||
|
||
#include <vxWorks.h>
|
||
#include <types.h>
|
||
#include <stdioLib.h>
|
||
#include <wdLib.h>
|
||
#include <memLib.h>
|
||
#include <string.h>
|
||
|
||
#include <alarm.h>
|
||
#include <callback.h>
|
||
#include <dbDefs.h>
|
||
#include <dbAccess.h>
|
||
#include <recSup.h>
|
||
#include <devSup.h>
|
||
#include <link.h>
|
||
#include <dbCommon.h>
|
||
#include <mbbiRecord.h>
|
||
|
||
/* Create the dset for devMbbiTestAsyn */
|
||
static long init_record();
|
||
static long read_mbbi();
|
||
struct {
|
||
long number;
|
||
DEVSUPFUN report;
|
||
DEVSUPFUN init;
|
||
DEVSUPFUN init_record;
|
||
DEVSUPFUN get_ioint_info;
|
||
DEVSUPFUN read_mbbi;
|
||
DEVSUPFUN special_linconv;
|
||
}devMbbiTestAsyn={
|
||
6,
|
||
NULL,
|
||
NULL,
|
||
init_record,
|
||
NULL,
|
||
read_mbbi,
|
||
NULL};
|
||
|
||
/* control block for callback*/
|
||
struct callback {
|
||
CALLBACK callback;
|
||
struct dbCommon *precord;
|
||
WDOG_ID wd_id;
|
||
};
|
||
|
||
static void myCallback(pcallback)
|
||
struct callback *pcallback;
|
||
{
|
||
struct dbCommon *precord=pcallback->precord;
|
||
struct rset *prset=(struct rset *)(precord->rset);
|
||
|
||
dbScanLock(precord);
|
||
(*prset->process)(precord);
|
||
dbScanUnlock(precord);
|
||
}
|
||
|
||
|
||
static long init_record(pmbbi)
|
||
struct mbbiRecord *pmbbi;
|
||
{
|
||
struct callback *pcallback;
|
||
|
||
/* mbbi.inp must be a CONSTANT*/
|
||
switch (pmbbi->inp.type) {
|
||
case (CONSTANT) :
|
||
pcallback = (struct callback *)(calloc(1,sizeof(struct callback)));
|
||
pmbbi->dpvt = (void *)pcallback;
|
||
callbackSetCallback(myCallback,&pcallback->callback);
|
||
pcallback->precord = (struct dbCommon *)pmbbi;
|
||
pcallback->wd_id = wdCreate();
|
||
pmbbi->val = pmbbi->inp.value.value;
|
||
pmbbi->udf = FALSE;
|
||
break;
|
||
default :
|
||
recGblRecordError(S_db_badField,(void *)pmbbi,
|
||
"devMbbiTestAsyn (init_record) Illegal INP field");
|
||
return(S_db_badField);
|
||
}
|
||
return(0);
|
||
}
|
||
|
||
static long read_mbbi(pmbbi)
|
||
struct mbbiRecord *pmbbi;
|
||
{
|
||
struct callback *pcallback=(struct callback *)(pmbbi->dpvt);
|
||
int wait_time;
|
||
|
||
/* mbbi.inp must be a CONSTANT*/
|
||
switch (pmbbi->inp.type) {
|
||
case (CONSTANT) :
|
||
if(pmbbi->pact) {
|
||
printf("%s Completed\n",pmbbi->name);
|
||
return(2); /* don't convert */
|
||
} else {
|
||
wait_time = (int)(pmbbi->disv * vxTicksPerSecond);
|
||
if(wait_time<=0) return(0);
|
||
callbackSetPriority(pmbbi->prio,&pcallback->callback);
|
||
printf("%s Starting asynchronous processing\n",pmbbi->name);
|
||
wdStart(pcallback->wd_id,wait_time,(FUNCPTR)callbackRequest,(int)pcallback);
|
||
pmbbi->pact=TRUE;
|
||
return(0);
|
||
}
|
||
default :
|
||
if(recGblSetSevr(pmbbi,SOFT_ALARM,INVALID_ALARM)){
|
||
if(pmbbi->stat!=SOFT_ALARM) {
|
||
recGblRecordError(S_db_badField,(void *)pmbbi,
|
||
"devMbbiTestAsyn (read_mbbi) Illegal INP field");
|
||
}
|
||
}
|
||
}
|
||
return(0);
|
||
}
|