Janet B. Anderson
162 lines
4.0 KiB
C
162 lines
4.0 KiB
C
/* devAiXy566DiL.c */
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/* share/src/dev $Id$ */
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/* devAiXy566DiL.c - Device Support Routines */
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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: 6-1-90
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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 11-11-91 jba Moved set of alarm stat and sevr to macros
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* .02 12-02-91 jba Added cmd control to io-interrupt processing
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* .03 12-12-91 jba Set cmd to zero in io-interrupt processing
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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 <alarm.h>
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#include <cvtTable.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 <aiRecord.h>
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long init_record();
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long get_ioint_info();
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long read_ai();
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long special_linconv();
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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_ai;
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DEVSUPFUN special_linconv;
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} devAiXy566DiL={
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6,
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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_ai,
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special_linconv};
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static long init_record(pai)
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struct aiRecord *pai;
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{
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char message[100];
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unsigned short value;
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struct vmeio *pvmeio;
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long status;
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/* ai.inp must be an VME_IO */
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switch (pai->inp.type) {
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case (VME_IO) :
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break;
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default :
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strcpy(message,pai->name);
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strcat(message,": devAiXy566DiL (init_record) Illegal INP field");
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errMessage(S_db_badField,message);
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return(S_db_badField);
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}
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/* set linear conversion slope*/
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pai->eslo = (pai->eguf -pai->egul)/4095.0;
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/* call driver so that it configures card */
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pvmeio = (struct vmeio *)&(pai->inp.value);
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if(status=ai_driver(pvmeio->card,pvmeio->signal,XY566DIL,&value)) {
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strcpy(message,pai->name);
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strcat(message,": devAiXy566DiL (init_record) ai_driver error");
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errMessage(status,message);
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return(status);
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}
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return(0);
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}
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static long get_ioint_info(cmd,pai,io_type,card_type,card_number)
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short *cmd;
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struct aiRecord *pai;
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short *io_type;
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short *card_type;
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short *card_number;
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{
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*cmd=-1;
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if(pai->inp.type != VME_IO) return(S_dev_badInpType);
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*io_type = IO_AI;
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*card_type = XY566DIL;
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*card_number = pai->inp.value.vmeio.card;
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return(0);
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}
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static long read_ai(pai)
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struct aiRecord *pai;
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{
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unsigned short value;
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struct vmeio *pvmeio;
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long status;
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pvmeio = (struct vmeio *)&(pai->inp.value);
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status=ai_driver(pvmeio->card,pvmeio->signal,XY566DIL,&value);
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if(status==-1) {
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status = 2; /*don't convert*/
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recGblSetSevr(pai,READ_ALARM,VALID_ALARM);
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return(status);
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}else if(status==-2) {
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status=0;
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recGblSetSevr(pai,HW_LIMIT_ALARM,VALID_ALARM);
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}
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if(status!=0) return(status);
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/*read into hardware as -0x7ff to +0x7ff */
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/* normalize to 0 - 0xfff */
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value = value + 0x800;
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/* remove the sign bit */
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value &= 0xfff;
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pai->rval = value;
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return(status);
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}
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static long special_linconv(pai,after)
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struct aiRecord *pai;
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int after;
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{
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if(!after) return(0);
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/* set linear conversion slope*/
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pai->eslo = (pai->eguf -pai->egul)/4095.0;
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return(0);
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}
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