From 28f5afbe4b7e382b5eec45508c5f8d0e44308415 Mon Sep 17 00:00:00 2001
From: Mike Bordua <core-talk@aps.anl.gov>
Date: Sun, 27 Mar 1994 14:54:27 +0000
Subject: [PATCH] Initial revision

---
 src/dev/devSASoft.c | 126 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 126 insertions(+)
 create mode 100644 src/dev/devSASoft.c

diff --git a/src/dev/devSASoft.c b/src/dev/devSASoft.c
new file mode 100644
index 000000000..f67a9e2d9
--- /dev/null
+++ b/src/dev/devSASoft.c
@@ -0,0 +1,126 @@
+/* devSASoft.c */
+/* devSASoft.c - Device Support Routines for soft subArray Records
+ *
+ *
+ *      Author:         Carl Lionberger
+ *      Date:           090293
+ *
+ *      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
+ *
+ *		The Control Systems Group
+ *		Systems Engineering Department
+ *		Lawrence Berkeley Laboratory
+ *
+ *      NOTES:
+ * Derived from soft record device support.
+ * Modification Log:
+ * -----------------
+ */
+
+
+#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	<subArrayRecord.h>
+/* Added for Channel Access Links */
+long dbCaAddInlink();
+long dbCaGetLink();
+
+static int sizeofTypes[] = {MAX_STRING_SIZE,1,1,2,2,4,4,4,8,2};
+
+/* Create the dset for devSASoft */
+static long init_record();
+static long read_sa();
+struct {
+	long		number;
+	DEVSUPFUN	report;
+	DEVSUPFUN	init;
+	DEVSUPFUN	init_record;
+	DEVSUPFUN	get_ioint_info;
+	DEVSUPFUN	read_sa;
+}devSASoft={
+	5,
+	NULL,
+	NULL,
+	init_record,
+	NULL,
+	read_sa};
+
+
+static long init_record(psa)
+    struct subArrayRecord	*psa;
+{
+    long status;
+
+    /* sa.inp must be a CONSTANT or a PV_LINK or a DB_LINK or a CA_LINK*/
+    switch (psa->inp.type) {
+    case (CONSTANT) :
+	psa->nord = 0;
+	break;
+    case (PV_LINK) :
+        status = dbCaAddInlink(&(psa->inp), (void *) psa, "VAL");
+        if(status) return(status);
+	break;
+    case (DB_LINK) :
+	break;
+    case (CA_LINK) :
+	break;
+    default :
+	recGblRecordError(S_db_badField,(void *)psa,
+		"devSASoft (init_record) Illegal INP field");
+	return(S_db_badField);
+    }
+    return(0);
+}
+
+static long read_sa(psa)
+    struct subArrayRecord	*psa;
+{
+    long status,ecount,options=0,nRequest;
+
+    if ((psa->indx + psa->nelm) < psa->malm)
+       nRequest= psa->indx + psa->nelm;
+    else
+       nRequest=psa->malm;
+    status = recGblGetLinkValue(&(psa->inp),(void *)psa,psa->ftvl,
+             psa->bptr, &options,&nRequest);
+    if ((nRequest - psa->indx) > 0)
+    {
+       if (psa->nelm > (nRequest - psa->indx))
+          ecount = nRequest - psa->indx;
+       else
+          ecount = psa->nelm;
+       bcopy(psa->bptr + psa->indx * sizeofTypes[psa->ftvl], psa->bptr, 
+             ecount * sizeofTypes[psa->ftvl]);
+    }
+    psa->nord = nRequest - psa->indx;
+
+    return(0);
+}