104 lines
2.0 KiB
C
104 lines
2.0 KiB
C
/* devAiSoft.c */
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/* share/src/dev $Id$ */
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/* devAiSoft.c - Device Support Routines for soft Analog Input Records*/
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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 <aiRecord.h>
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/* Create the dset for devAiSoft */
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long init_record();
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long read_ai();
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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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}devAiSoft={
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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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NULL};
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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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/* ai.inp must be a CONSTANT or a PV_LINK or a DB_LINK or a CA_LINK*/
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switch (pai->inp.type) {
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case (CONSTANT) :
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pai->val = pai->inp.value.value;
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break;
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case (PV_LINK) :
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break;
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case (DB_LINK) :
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break;
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case (CA_LINK) :
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break;
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default :
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strcpy(message,pai->name);
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strcat(message,": devAiSoft (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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/* Make sure record processing routine does not perform any conversion*/
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pai->linr=0;
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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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char message[100];
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long status,options,nRequest;
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/* ai.inp must be a CONSTANT or a DB_LINK or a CA_LINK*/
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switch (pai->inp.type) {
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case (CONSTANT) :
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break;
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case (DB_LINK) :
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options=0;
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nRequest=1;
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status = dbGetLink(&(pai->inp.value.db_link),pai,DBR_DOUBLE,
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&(pai->val),&options,&nRequest);
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if(status!=0) {
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if(pai->nsev<VALID_ALARM) {
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pai->nsev = VALID_ALARM;
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pai->nsta = LINK_ALARM;
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}
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}
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break;
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case (CA_LINK) :
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break;
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default :
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if(pai->nsev<MAJOR_ALARM) {
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pai->nsev = MAJOR_ALARM;
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pai->nsta = SOFT_ALARM;
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if(pai->stat!=SOFT_ALARM) {
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strcpy(message,pai->name);
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strcat(message,": devAiSoft (read_ai) Illegal INP field");
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errMessage(S_db_badField,message);
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}
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}
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}
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return(2); /*don't convert*/
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}
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