Janet B. Anderson
172 lines
4.1 KiB
C
172 lines
4.1 KiB
C
/* devComet.c */
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/* share/src/dev @(#)devWfComet.c 1.3 3/8/93 */
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/*
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* Original Author: Bob Dalesio
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* Current Author: Marty Kraimer
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* Date: 08-02-92
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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, the Regents of the University of California,
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* and the University of Chicago Board of Governors.
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*
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* This software was produced under U.S. Government contracts:
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* (W-7405-ENG-36) at the Los Alamos National Laboratory,
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* and (W-31-109-ENG-38) at Argonne National Laboratory.
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*
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* Initial development by:
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* The Controls and Automation Group (AT-8)
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* Ground Test Accelerator
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* Accelerator Technology Division
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* Los Alamos National Laboratory
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*
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* Co-developed with
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* The Controls and Computing Group
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* Accelerator Systems Division
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* Advanced Photon Source
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* Argonne National Laboratory
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*
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* Modification Log:
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* -----------------
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* .01 08-01-92 mrk Initial version
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* ...
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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 <alarm.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 <link.h>
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#include <module_types.h>
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#include <waveformRecord.h>
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#include <dbScan.h>
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static long init_record();
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static long read_wf();
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static long arm_wf();
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static long get_ioint_info();
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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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} devWfComet={
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5,
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NULL,
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NULL,
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init_record,
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get_ioint_info,
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read_wf};
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static void myCallback(pwf,pdata)
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struct waveformRecord *pwf;
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unsigned char *pdata;
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{
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struct rset *prset=(struct rset *)(pwf->rset);
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short ftvl = pwf->ftvl;
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long i;
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unsigned long no_read;
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unsigned char *pdest=(unsigned char *)pwf->bptr;
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/* printf("myCallback: BEGIN...\n"); */
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pwf->pact = TRUE;
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if(!pwf->busy) return;
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/* if record is disabled don't read the data from comet ram */
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if (pwf->disa == pwf->disv) return;
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dbScanLock((struct dbCommon *)pwf);
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pwf->busy = FALSE;
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if(ftvl==DBF_SHORT || ftvl==DBF_USHORT) {
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no_read = pwf->nelm;
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#if 1
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for(i=0; i<no_read*2; i++) {
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*pdest++ = *pdata++;
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}
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#endif
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pwf->nord = no_read; /* number of values read */
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} else {
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recGblRecordError(S_db_badField,(void *)pwf,
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"read_wf - illegal ftvl");
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recGblSetSevr(pwf,READ_ALARM,INVALID_ALARM);
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}
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/* printf("myCallback: calling RS process\n"); */
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(*prset->process)(pwf);
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dbScanUnlock((struct dbCommon *)pwf);
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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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/* wf.inp must be an VME_IO */
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switch (pwf->inp.type) {
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case (VME_IO) :
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break;
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default :
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recGblRecordError(S_db_badField,(void *)pwf,
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"devWfComet (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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/* printf("read_wf: begin...\n"); */
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/* determine if wave form is to be rearmed*/
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/* If not active then request rearm */
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if(!pwf->pact) arm_wf(pwf);
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/* if already active then call is from myCallback. check rarm*/
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else if(pwf->rarm) {
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(void)arm_wf(pwf);
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}
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return(0);
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}
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static long arm_wf(pwf)
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struct waveformRecord *pwf;
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{
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struct vmeio *pvmeio = (struct vmeio *)&(pwf->inp.value);
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/* printf("arm_wf: begin...\n"); */
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/* printf("arm_wf: pwf->nelm: %d \n",pwf->nelm); */
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pwf->busy = TRUE;
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if(comet_driver(pvmeio->card,pvmeio->signal,myCallback,pwf,pwf->nelm)<0) {
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recGblSetSevr(pwf,READ_ALARM,INVALID_ALARM);
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pwf->busy = FALSE;
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return(0); }
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/* I, paul, added the following line */
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pwf->pact=TRUE;
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return(0);
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}
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static long get_ioint_info( cmd, pwf,ppvt)
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int cmd;
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struct waveformRecord *pwf;
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IOSCANPVT *ppvt;
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{
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struct vmeio *pvmeio = (struct vmeio *)&(pwf->inp.value);
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cometGetioscanpvt(pvmeio->card,ppvt);
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return(0);
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}
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