Initial revision

1992-09-02 14:46:42 +00:00
parent c2ceb64a67
commit 27c0736a17
1 changed files with 139 additions and 0 deletions
--- a/src/dev/devWfComet.c
+++ b/src/dev/devWfComet.c
@@ -0,0 +1,139 @@
+/* devComet.c */
+/* share/src/dev $Id$ */
+
+/*
+ *      Original Author: Bob Dalesio
+ *      Current Author:  Marty Kraimer
+ *      Date:            08-02-92
+ *
+ *      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  08-01-92	mrk	Initial version
+ *      ...
+ */
+
+
+#include	<vxWorks.h>
+#include	<types.h>
+#include	<stdioLib.h>
+#include	<string.h>
+
+#include	<alarm.h>
+#include	<dbDefs.h>
+#include	<dbAccess.h>
+#include        <recSup.h>
+#include	<devSup.h>
+#include	<link.h>
+#include	<module_types.h>
+#include	<waveformRecord.h>
+
+long init_record();
+long read_wf();
+long arm_wf();
+
+
+struct {
+	long		number;
+	DEVSUPFUN	report;
+	DEVSUPFUN	init;
+	DEVSUPFUN	init_record;
+        DEVSUPFUN       get_ioint_info;
+	DEVSUPFUN	read_wf;
+} devWfComet={
+	5,
+	NULL,
+	NULL,
+	init_record,
+	NULL,
+	read_wf};
+
+
+static void myCallback(pwf,no_read,pdata)
+    struct waveformRecord   *pwf;
+    int             no_read;
+    unsigned char   *pdata;
+{
+	struct rset     *prset=(struct rset *)(pwf->rset);
+	short ftvl = pwf->ftvl;
+
+	if(!pwf->busy) return;
+        dbScanLock((struct dbCommon *)pwf);
+	pwf->busy = FALSE;
+	if(ftvl==DBF_SHORT || ftvl==DBF_USHORT) {
+       		memcpy(pwf->bptr,pdata,no_read*2);
+       		pwf->nord = no_read;            /* number of values read */
+	} else {
+		recGblRecordError(S_db_badField,(void *)pwf,
+			"read_wf - illegal ftvl");
+                recGblSetSevr(pwf,READ_ALARM,INVALID_ALARM);
+	}
+	(*prset->process)(pwf);
+        dbScanUnlock((struct dbCommon *)pwf);
+}
+
+static long init_record(pwf)
+    struct waveformRecord	*pwf;
+{
+
+    /* wf.inp must be an VME_IO */
+    switch (pwf->inp.type) {
+    case (VME_IO) :
+	break;
+    default :
+	recGblRecordError(S_db_badField,(void *)pwf,
+		"devWfComet (init_record) Illegal INP field");
+	return(S_db_badField);
+    }
+    return(0);
+}
+
+static long read_wf(pwf)
+    struct waveformRecord	*pwf;
+{
+	
+	/* determine if wave form is to be rearmed*/
+	/* If not active then request rearm */
+	if(!pwf->pact) arm_wf(pwf);
+	/* if already active then call is from myCallback. check rarm*/
+	else if(pwf->rarm) {
+		(void)arm_wf(pwf);
+		pwf->rarm = 0;
+	}
+	return(0);
+}
+
+static long arm_wf(pwf)
+struct waveformRecord   *pwf;
+{
+	struct vmeio *pvmeio = (struct vmeio *)&(pwf->inp.value);
+
+	pwf->busy = TRUE;
+	if(comet_driver(pvmeio->card,myCallback,pwf)<0) {
+                recGblSetSevr(pwf,READ_ALARM,INVALID_ALARM);
+		pwf->busy = FALSE;
+		return(0);
+	}
+	pwf->pact=TRUE;
+	return(0);
+}