161 lines
3.8 KiB
C
161 lines
3.8 KiB
C
/* devWfCamac.c */
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/* devWfCamac.c - Device Support Routines for Camac waveform block read */
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/*
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* Author: Johnny Tang
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* Date: 16th March 1994.
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*
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* Experimental Physics and Industrial Control System (EPICS)
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*
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* Copyright 1994, SURA CEBAF.
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*
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*
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* Modification Log:
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* -----------------
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*/
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#include <vxWorks.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <dbDefs.h>
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#include <dbAccess.h>
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#include <recSup.h>
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#include <devSup.h>
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#include <devCamac.h>
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#include <link.h>
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#include <module_types.h>
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#include <waveformRecord.h>
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#include "camacLib.h"
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/* Create the dset for devWfCamac */
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static long init();
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static long init_record();
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static long read_wf();
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struct {
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long number;
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DEVSUPFUN report;
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DEVSUPFUN init;
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DEVSUPFUN init_record;
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DEVSUPFUN get_ioint_info;
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DEVSUPFUN read_wf;
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DEVSUPFUN special_linconv;
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}devWfCamac={
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6,
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NULL,
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init,
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init_record,
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NULL,
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read_wf,
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NULL};
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static long init(after)
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int after;
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{
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#ifdef DEBUG_ON
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if(CDEBUG)printf("devWfCamac (init) called, pass = %d\n", after);
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#endif
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return(0);
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}
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static long init_record(pwf)
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struct waveformRecord *pwf;
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{
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struct camacio *pcamacio;
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struct dinfo *pcio;
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int fsd;
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#ifdef DEBUG_ON
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if(CDEBUG)printf("devWfCamac (init_record) called.\n");
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#endif
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/* wf.inp must be a CAMAC_IO */
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switch (pwf->inp.type) {
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case (CAMAC_IO) :
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pcio = (struct dinfo *)malloc(sizeof(struct dinfo));
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if (pcio == NULL) {
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#ifdef DEBUG_ON
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if(CDEBUG)printf("devWfCamac (init_record): malloc failed.\n");
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#endif
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return(DO_NOT_CONVERT);
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}
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pcio->ext = 0;
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pcamacio = (struct camacio *)&(pwf->inp.value);
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#ifdef DEBUG_ON
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if(CDEBUG)printf("devWfCamac (init_record): B=%d C=%d N=%d A=%d F=%d\n",
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pcamacio->b, pcamacio->c, pcamacio->n, pcamacio->a, pcamacio->f);
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#endif
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cdreg(&(pcio->ext), pcamacio->b, pcamacio->c, pcamacio->n, pcamacio->a);
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if(!(pcio->ext)) return(DO_NOT_CONVERT); /* cdreg failed if ext is zero */
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fsd = atoi((char *)pcamacio->parm);
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/*
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if (fsd > 0) {
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if (!(fsd & (fsd+1))) fsd++;
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pwf->eslo = (pwf->eguf - pwf->egul)/fsd;
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}
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*/
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for (pcio->mask=1; pcio->mask<fsd; pcio->mask=pcio->mask<<1);
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pcio->mask--;
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pcio->f = pcamacio->f;
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pwf->dpvt = (long *)pcio;
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break;
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default :
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recGblRecordError(S_db_badField,(void *)pwf,
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"devWfCamac (init_record) Illegal INP field");
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return(S_db_badField);
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}
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return(0);
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}
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static long read_wf(pwf)
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struct waveformRecord *pwf;
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{
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register struct dinfo *pcio;
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int cb[4] = {0, 0, 0, 0};
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pcio = (struct dinfo *)pwf->dpvt;
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if(!(pcio->ext))return(DO_NOT_CONVERT);
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#ifdef DEBUG_ON
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if(CDEBUG)printf("devWfCamac (read_aai): F=%ld ext=%ld mask=%ld\n",
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pcio->f, pcio->ext, pcio->mask);
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#endif
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cb[0] = pwf->nelm;
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/* Execute CAMAC function
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if wf.ftvl is SHORT/USHORT use csubc (16 bits)
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else use cfubc (24 bits)
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*/
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/* BLOCK TRANSFER mode */
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#ifdef DEBUG_ON
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if(CDEBUG)printf("devWfCamac (read_aai) : Block Transfer mode\n");
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#endif
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switch (pwf->ftvl) {
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case (DBF_USHORT) :
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case (DBF_SHORT) :
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csubc(pcio->f, pcio->ext, pwf->bptr, cb);
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break;
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case (DBF_ULONG) :
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case (DBF_LONG) :
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cfubc(pcio->f, pcio->ext, pwf->bptr, cb);
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break;
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default:
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cfubc(pcio->f, pcio->ext, pwf->bptr, cb);
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}
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pwf->nord = cb[1];
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#ifdef DEBUG_ON
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if (CDEBUG) printf("pwf->ftvl:%d cb[0]:%d cb[1]:%d cb[2]:%d cb[3]:%d\n",
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pwf->ftvl,cb[0],cb[1],cb[2],cb[3]);
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#endif
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if(cb[0] == cb[1]) return(CONVERT);
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else return(DO_NOT_CONVERT);
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}
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