114 lines
2.4 KiB
C
114 lines
2.4 KiB
C
/* devAiXy566Se.c */
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/* share/src/dev $Id$ */
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/* devAiXy566Se.c - Device Support Routines */
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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 <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 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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} devAiXy566Se={
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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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NULL,
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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,": devAiXy566Se (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,XY566SE,&value)) {
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strcpy(message,pai->name);
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strcat(message,": devAiXy566Se (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 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,XY566SE,&value);
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if(status==-1) {
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status = 2; /*don't convert*/
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if(pai->nsev<MAJOR_ALARM ) {
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pai->nsta = READ_ALARM;
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pai->nsev = MAJOR_ALARM;
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}
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return(status);
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}else if(status==-2) {
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status=0;
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if(pai->nsev<MAJOR_ALARM ) {
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pai->nsta = HW_LIMIT_ALARM;
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pai->nsev = MAJOR_ALARM;
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}
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}
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if(status!=0) return(status);
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pai->rval = value & 0xfff;
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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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