Johnny Tang
137 lines
3.3 KiB
C
137 lines
3.3 KiB
C
/* devMbboDirectCamac.c */
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/* devMbboDirectCamac.c - Device Support Routines for Camac Multi-bit binary direct output
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* -- 32 bit binary output
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*
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* Original Author: Dave Barker
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* Current Author: Johnny Tang
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* Date: 6th Aug 1993
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*
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* Experimental Physics and Industrial Control System (EPICS)
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*
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* Copyright 1991, SURA CEBAF.
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*
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*
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*
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* Modification Log:
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* -----------------
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* 4-28-94 jt
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*/
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#include <vxWorks.h>
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#include <types.h>
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#include <stdioLib.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 <module_types.h>
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#include <mbboDirectRecord.h>
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#include "camacLib.h"
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/* Create the dset for devMbboDirectCamac */
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static long init();
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static long init_record();
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static long write_mbbodirect();
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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 write_mbbodirect;
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}devMbboDirectCamac={
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5,
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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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write_mbbodirect};
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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("devMbboDirectCamac (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(pmbbodirect)
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struct mbboDirectRecord *pmbbodirect;
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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("devMbboDirectCamac (init_record) called.\n");
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#endif
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/* mbbodirect.out must be a CAMAC_IO */
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switch (pmbbodirect->out.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("devMbboDirectCamac (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 *)&(pmbbodirect->out.value);
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#ifdef DEBUG_ON
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if(CDEBUG)printf("devMbboDirectCamac (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);
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fsd = (int)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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pmbbodirect->eslo=(pmbbodirect->eguf - pmbbodirect->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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pmbbodirect->dpvt = (long *)pcio;
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break;
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default :
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recGblRecordError(S_db_badField,(void *)pmbbodirect,
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"devMbboDirectCamac (init_record) Illegal OUT field");
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return(S_db_badField);
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}
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return(CONVERT);
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}
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static long write_mbbodirect(pmbbodirect)
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struct mbboDirectRecord *pmbbodirect;
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{
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register struct dinfo *pcio;
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int q;
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pcio = (struct dinfo *)pmbbodirect->dpvt;
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if(!(pcio->ext)) return(DO_NOT_CONVERT);
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q = 0;
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cfsa(pcio->f, pcio->ext, &(pmbbodirect->val), &q);
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#ifdef DEBUG_ON
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if(CDEBUG)printf("devMbboDirectCamac (write_mbbodirect): f=%d ext=%ld mask=%ld value=%d\n",
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pcio->f, pcio->ext, pcio->mask, pmbbodirect->val);
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#endif
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if(q) return(CONVERT);
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else return(DO_NOT_CONVERT);
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}
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