150 lines
3.2 KiB
C
150 lines
3.2 KiB
C
/* devAoCamac.c */
|
||
|
||
/* devAoCamac.c - Device Support Routines for Generic Camac Analogue output */
|
||
/*
|
||
* Original Author: Dave Barker
|
||
* Current Author: Johnny Tang
|
||
* Date: 27th July 1993.
|
||
*
|
||
* Experimental Physics and Industrial Control System (EPICS)
|
||
*
|
||
* Copyright 1993, SURA CEBAF.
|
||
*
|
||
*
|
||
* Modification Log:
|
||
* -----------------
|
||
* 4/14/94 jt use camacio data struct
|
||
*/
|
||
|
||
|
||
#include <vxWorks.h>
|
||
#include <types.h>
|
||
#include <stdioLib.h>
|
||
#include <string.h>
|
||
|
||
#include <dbDefs.h>
|
||
#include <dbAccess.h>
|
||
#include <recSup.h>
|
||
#include <devSup.h>
|
||
#include <devCamac.h>
|
||
#include <link.h>
|
||
#include <module_types.h>
|
||
#include <aoRecord.h>
|
||
|
||
#include "camacLib.h"
|
||
|
||
/* Create the dset for devAoCamac */
|
||
static long init();
|
||
static long init_record();
|
||
static long write_ao();
|
||
static long special_linconv();
|
||
|
||
struct {
|
||
long number;
|
||
DEVSUPFUN report;
|
||
DEVSUPFUN init;
|
||
DEVSUPFUN init_record;
|
||
DEVSUPFUN get_ioint_info;
|
||
DEVSUPFUN write_ao;
|
||
DEVSUPFUN special_linconv;
|
||
}devAoCamac={
|
||
6,
|
||
NULL,
|
||
init,
|
||
init_record,
|
||
NULL,
|
||
write_ao,
|
||
special_linconv};
|
||
|
||
static long init(after)
|
||
int after;
|
||
{
|
||
#ifdef DEBUG_ON
|
||
if ( CDEBUG)printf("devAoCamac (init) called, pass=%d\n", after);
|
||
#endif
|
||
return(0);
|
||
}
|
||
|
||
static long init_record(pao)
|
||
struct aoRecord *pao;
|
||
{
|
||
struct camacio *pcamacio;
|
||
struct dinfo *pcio;
|
||
int fsd;
|
||
|
||
#ifdef DEBUG_ON
|
||
if ( CDEBUG)printf("devAoCamac (init_record) called.\n");
|
||
#endif
|
||
|
||
/* ao.out must be a CAMAC_IO */
|
||
switch (pao->out.type) {
|
||
case (CAMAC_IO) :
|
||
pcio = (struct dinfo *)malloc(sizeof(struct dinfo));
|
||
if (pcio == NULL) {
|
||
#ifdef DEBUG_ON
|
||
if ( CDEBUG)printf("devAoCamac (init_record): malloc failed.\n");
|
||
#endif
|
||
return(DO_NOT_CONVERT);
|
||
}
|
||
pcio->ext = 0;
|
||
pcamacio = (struct camacio *)&(pao->out.value);
|
||
#ifdef DEBUG_ON
|
||
if ( CDEBUG)printf("devAioamac (init_record): B=%d C=%d N=%d A=%d F=%d\n",
|
||
pcamacio->b, pcamacio->c, pcamacio->n, pcamacio->a, pcamacio->f);
|
||
#endif
|
||
cdreg(&(pcio->ext), pcamacio->b, pcamacio->c, pcamacio->n, pcamacio->a);
|
||
|
||
if(!(pcio->ext)) return(DO_NOT_CONVERT);
|
||
sscanf((char *)pcamacio->parm, "%i",&fsd);
|
||
|
||
/* fsd = (int)atoi((char *)pcamacio->parm); */
|
||
if (fsd > 0) {
|
||
if (!(fsd & (fsd+1))) fsd++;
|
||
pao->eslo=(pao->eguf - pao->egul)/fsd;
|
||
}
|
||
|
||
for (pcio->mask=1; pcio->mask<fsd; pcio->mask=pcio->mask<<1);
|
||
pcio->mask--;
|
||
|
||
pcio->f = pcamacio->f;
|
||
|
||
pao->dpvt = (long *)pcio;
|
||
break;
|
||
|
||
default :
|
||
recGblRecordError(S_db_badField,(void *)pao,
|
||
"devAoCamac (init_record) Illegal OUT field");
|
||
return(S_db_badField);
|
||
}
|
||
|
||
return(0);
|
||
}
|
||
|
||
static long write_ao(pao)
|
||
struct aoRecord *pao;
|
||
{
|
||
register struct dinfo *pcio;
|
||
int q;
|
||
|
||
pcio = (struct dinfo *)pao->dpvt;
|
||
if(!(pcio->ext)) return(DO_NOT_CONVERT);
|
||
|
||
pao->rval &= pcio->mask;
|
||
q = 0;
|
||
cfsa(pcio->f, pcio->ext, &(pao->rval), &q);
|
||
#ifdef DEBUG_ON
|
||
if ( CDEBUG)printf("devAoCamac (write_ao): f=%d ext=%ld mask=%ld value=%d\n",
|
||
pcio->f, pcio->ext, pcio->mask, pao->rval);
|
||
#endif
|
||
if(q) return(CONVERT);
|
||
else return(DO_NOT_CONVERT);
|
||
}
|
||
|
||
static long special_linconv(pao,after)
|
||
struct aoRecord *pao;
|
||
int after;
|
||
{
|
||
/* Stub routine, added for consistency. */
|
||
return(0);
|
||
}
|