395 lines
11 KiB
C
395 lines
11 KiB
C
/* recTimer.c */
|
||
/* share/src/rec $Id$ */
|
||
|
||
/* recTimer.c - Record Support Routines for Timer records */
|
||
/*
|
||
* Original Author: Bob Dalesio
|
||
* Current Author: Marty Kraimer
|
||
* Date: 1-9-89
|
||
*
|
||
* 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 01-20-89 lrd fix vx includes
|
||
* .02 02-06-89 lrd add event post capability
|
||
* .03 03-29-89 lrd make hardware errors MAJOR
|
||
* remove hw severity spec from database
|
||
* .04 04-07-89 lrd service monitors
|
||
* .05 05-03-89 lrd removed process mask from arg list
|
||
* .06 05-03-89 lrd modified to read the timing on startup
|
||
* .07 05-03-89 lrd read trigger delay from trigger origin record
|
||
* .08 07-03-89 lrd add processing a forward link
|
||
* .09 08-15-89 lrd add post events for timing pulse 1 fields
|
||
* .10 10-15-90 mrk extensible record and device support
|
||
* .11 11-11-91 jba Moved set and reset of alarm stat and sevr to macros
|
||
* .12 12-02-91 jba Added cmd control to io-interrupt processing
|
||
* .13 12-12-91 jba Set cmd to zero in io-interrupt processing
|
||
* .14 02-05-92 jba Changed function arguments from paddr to precord
|
||
* .15 02-28-92 jba ANSI C changes
|
||
*/
|
||
|
||
#include <vxWorks.h>
|
||
#include <types.h>
|
||
#include <stdioLib.h>
|
||
#include <lstLib.h>
|
||
|
||
#include <alarm.h>
|
||
#include <dbDefs.h>
|
||
#include <dbAccess.h>
|
||
#include <dbFldTypes.h>
|
||
#include <devSup.h>
|
||
#include <errMdef.h>
|
||
#include <recSup.h>
|
||
#include <module_types.h>
|
||
#include <timerRecord.h>
|
||
|
||
/* Create RSET - Record Support Entry Table*/
|
||
#define report NULL
|
||
#define initialize NULL
|
||
static long init_record();
|
||
static long process();
|
||
#define special NULL
|
||
static long get_value();
|
||
#define cvt_dbaddr NULL
|
||
#define get_array_info NULL
|
||
#define put_array_info NULL
|
||
#define get_units NULL
|
||
#define get_precision NULL
|
||
#define get_enum_str NULL
|
||
#define get_enum_strs NULL
|
||
#define put_enum_str NULL
|
||
#define get_graphic_double NULL
|
||
#define get_control_double NULL
|
||
#define get_alarm_double NULL
|
||
|
||
struct rset timerRSET={
|
||
RSETNUMBER,
|
||
report,
|
||
initialize,
|
||
init_record,
|
||
process,
|
||
special,
|
||
get_value,
|
||
cvt_dbaddr,
|
||
get_array_info,
|
||
put_array_info,
|
||
get_units,
|
||
get_precision,
|
||
get_enum_str,
|
||
get_enum_strs,
|
||
put_enum_str,
|
||
get_graphic_double,
|
||
get_control_double,
|
||
get_alarm_double };
|
||
|
||
/* Added for Channel Access Links */
|
||
long dbCaAddInlink();
|
||
long dbCaGetLink();
|
||
|
||
/* because the driver does all the work just declare device support here*/
|
||
static long get_ioint_info();
|
||
struct dset devTmMizar8310={4,NULL,NULL,NULL,get_ioint_info};
|
||
struct dset devTmDg535={4,NULL,NULL,NULL,get_ioint_info};
|
||
struct dset devTmVxiAt5={4,NULL,NULL,NULL,get_ioint_info};
|
||
static long get_ioint_info(cmd,ptimer,io_type,card_type,card_number)
|
||
short *cmd;
|
||
struct timerRecord *ptimer;
|
||
short *io_type;
|
||
short *card_type;
|
||
short *card_number;
|
||
{
|
||
*cmd=-1;
|
||
if(ptimer->out.type != VME_IO) return(S_dev_badInpType);
|
||
*io_type = IO_TIMER;
|
||
if(ptimer->dtyp==0)
|
||
*card_type = MZ8310;
|
||
else if(ptimer->dtyp==3)
|
||
*card_type = VXI_AT5_TIME;
|
||
else
|
||
return(1);
|
||
*card_number = ptimer->out.value.vmeio.card;
|
||
return(0);
|
||
}
|
||
|
||
|
||
extern int post_event();
|
||
|
||
void monitor();
|
||
void read_timer();
|
||
void convert_timer();
|
||
void write_timer();
|
||
|
||
static long init_record(ptimer,pass)
|
||
struct timerRecord *ptimer;
|
||
int pass;
|
||
{
|
||
/* Added for Channel Access Links */
|
||
long status;
|
||
|
||
if (pass==0) return(0);
|
||
|
||
/* get the delay initial value if torg is a constant*/
|
||
if (ptimer->torg.type == CONSTANT ){
|
||
ptimer->trdl = ptimer->torg.value.value;
|
||
}
|
||
if (ptimer->torg.type == PV_LINK )
|
||
{
|
||
status = dbCaAddInlink(&(ptimer->torg), (void *) ptimer, "TRDL");
|
||
if(status) return(status);
|
||
} /* endif */
|
||
|
||
|
||
/* read to maintain time pulses over a restart */
|
||
read_timer(ptimer);
|
||
return(0);
|
||
}
|
||
|
||
static long process(ptimer)
|
||
struct timerRecord *ptimer;
|
||
{
|
||
|
||
ptimer->pact=TRUE;
|
||
|
||
/* write the new value */
|
||
write_timer(ptimer);
|
||
ptimer->udf=FALSE;
|
||
tsLocalTime(&ptimer->time);
|
||
|
||
/* check event list */
|
||
monitor(ptimer);
|
||
/* process the forward scan link record */
|
||
if (ptimer->flnk.type==DB_LINK) dbScanPassive(((struct dbAddr *)ptimer->flnk.value.db_link.pdbAddr)->precord);
|
||
|
||
ptimer->pact=FALSE;
|
||
return(0);
|
||
}
|
||
|
||
static long get_value(ptimer,pvdes)
|
||
struct timerRecord *ptimer;
|
||
struct valueDes *pvdes;
|
||
{
|
||
pvdes->field_type = DBF_SHORT;
|
||
pvdes->no_elements=1;
|
||
(short *)(pvdes->pvalue) = &ptimer->val;
|
||
return(0);
|
||
}
|
||
|
||
static void monitor(ptimer)
|
||
struct timerRecord *ptimer;
|
||
{
|
||
unsigned short monitor_mask;
|
||
short stat,sevr,nsta,nsev;
|
||
|
||
/* get previous stat and sevr and new stat and sevr*/
|
||
recGblResetSevr(ptimer,stat,sevr,nsta,nsev);
|
||
|
||
/* Flags which events to fire on the value field */
|
||
monitor_mask = 0;
|
||
|
||
/* alarm condition changed this scan */
|
||
if (stat!=nsta || sevr!=nsev){
|
||
/* post events for alarm condition change*/
|
||
monitor_mask = DBE_ALARM;
|
||
/* post stat and sevr fields */
|
||
db_post_events(ptimer,&ptimer->stat,DBE_VALUE);
|
||
db_post_events(ptimer,&ptimer->sevr,DBE_VALUE);
|
||
}
|
||
|
||
monitor_mask |= (DBE_VALUE | DBE_LOG);
|
||
db_post_events(ptimer,&ptimer->val,monitor_mask);
|
||
db_post_events(ptimer,&ptimer->t1wd,monitor_mask);
|
||
db_post_events(ptimer,&ptimer->t1ld,monitor_mask);
|
||
db_post_events(ptimer,&ptimer->t1td,monitor_mask);
|
||
return;
|
||
}
|
||
|
||
/*
|
||
* These constants are indexed by the time units field in the timer record.
|
||
* Values are converted to seconds.
|
||
*/
|
||
static double constants[] = {1e3,1e6,1e9,1e12};
|
||
/*
|
||
* CONVERT_TIMER
|
||
*
|
||
*/
|
||
static void convert_timer(ptimer)
|
||
struct timerRecord *ptimer;
|
||
{
|
||
double constant;
|
||
|
||
/* check the tdisble bit */
|
||
if (ptimer->tdis == 1){
|
||
ptimer->t1dl = ptimer->t1wd = 0;
|
||
ptimer->t2dl = ptimer->t2wd = 0;
|
||
ptimer->t3dl = ptimer->t3wd = 0;
|
||
ptimer->t4dl = ptimer->t4wd = 0;
|
||
ptimer->t5dl = ptimer->t5wd = 0;
|
||
return;
|
||
}
|
||
|
||
/* convert according to time units */
|
||
constant = constants[ptimer->timu];
|
||
|
||
/* timing pulse 1 */
|
||
ptimer->t1dl = (ptimer->dut1 + ptimer->trdl) / constant; /* delay */
|
||
ptimer->t1wd = ptimer->opw1 / constant; /* width */
|
||
ptimer->t1ld = ptimer->dut1 + ptimer->trdl; /* leading edge delay */
|
||
ptimer->t1td = ptimer->t1ld + ptimer->opw1; /* trailing edge delay */
|
||
|
||
/* timing pulse 2 */
|
||
ptimer->t2dl = (ptimer->dut2 + ptimer->trdl) / constant; /* delay */
|
||
ptimer->t2wd = ptimer->opw2 / constant; /* width */
|
||
ptimer->t2ld = ptimer->dut2 + ptimer->trdl; /* leading edge delay */
|
||
ptimer->t2td = ptimer->t2ld + ptimer->opw2; /* trailing edge delay */
|
||
|
||
/* timing pulse 3 */
|
||
ptimer->t3dl = (ptimer->dut3 + ptimer->trdl) / constant; /* delay */
|
||
ptimer->t3wd = ptimer->opw3 / constant; /* width */
|
||
ptimer->t3ld = ptimer->dut3 + ptimer->trdl; /* leading edge delay */
|
||
ptimer->t3td = ptimer->t3ld + ptimer->opw3; /* trailing edge delay */
|
||
|
||
/* timing pulse 4 */
|
||
ptimer->t4dl = (ptimer->dut4 + ptimer->trdl) / constant; /* delay */
|
||
ptimer->t4wd = ptimer->opw4 / constant; /* width */
|
||
ptimer->t4ld = ptimer->dut4 + ptimer->trdl; /* leading edge delay */
|
||
ptimer->t4td = ptimer->t4ld + ptimer->opw4; /* trailing edge delay */
|
||
|
||
/* timing pulse 5 */
|
||
ptimer->t5dl = (ptimer->dut5 + ptimer->trdl) / constant; /* delay */
|
||
ptimer->t5wd = ptimer->opw5 / constant; /* width */
|
||
ptimer->t5ld = ptimer->dut5 + ptimer->trdl; /* leading edge delay */
|
||
ptimer->t5td = ptimer->t5ld + ptimer->opw5; /* trailing edge delay */
|
||
}
|
||
|
||
/*
|
||
* WRITE_TIMER
|
||
*
|
||
* convert the value and write it
|
||
*/
|
||
static void write_timer(ptimer)
|
||
struct timerRecord *ptimer;
|
||
{
|
||
struct vmeio *pvmeio;
|
||
long status,options,nRequest;
|
||
|
||
/* get the delay from trigger source */
|
||
if (ptimer->torg.type == DB_LINK) {
|
||
options=0;
|
||
nRequest=1;
|
||
status = dbGetLink(&(ptimer->torg.value.db_link),(struct dbCommon *)ptimer,DBR_FLOAT,
|
||
&(ptimer->trdl),&options,&nRequest);
|
||
if(status!=0){
|
||
recGblSetSevr(ptimer,LINK_ALARM,VALID_ALARM);
|
||
return;
|
||
}
|
||
}
|
||
if (ptimer->torg.type == CA_LINK)
|
||
{
|
||
status = dbCaGetLink(&(ptimer->torg));
|
||
if(status!=0)
|
||
{
|
||
recGblSetSevr(ptimer,LINK_ALARM,VALID_ALARM);
|
||
return;
|
||
} /* endif */
|
||
} /* endif */
|
||
if (ptimer->out.type != VME_IO) {
|
||
recGblSetSevr(ptimer,WRITE_ALARM,VALID_ALARM);
|
||
return;
|
||
}
|
||
pvmeio = (struct vmeio *)(&ptimer->out.value);
|
||
|
||
/* should we maintain through a reboot */
|
||
if (ptimer->main && ptimer->rdt1 && ptimer->rpw1){
|
||
ptimer->dut1 = ptimer->rdt1 - ptimer->trdl;
|
||
ptimer->opw1 = ptimer->rpw1;
|
||
ptimer->main = 0; /* only kept on the first write */
|
||
}
|
||
|
||
|
||
/* convert the value */
|
||
convert_timer(ptimer);
|
||
|
||
/* put the value to the ao driver */
|
||
if (time_driver((int)pvmeio->card, /* card number */
|
||
(int)pvmeio->signal, /* signal number */
|
||
(int)ptimer->dtyp, /* card type */
|
||
(int)ptimer->tsrc, /* trigger source */
|
||
(int)ptimer->ptst, /* pre-trigger state */
|
||
&ptimer->t1dl, /* delay/width array */
|
||
1, /* number of pulses */
|
||
((ptimer->tevt == 0)?0:post_event), /* addr of event post routine */
|
||
(int)ptimer->tevt) /* event to post on trigger */
|
||
!= 0){
|
||
recGblSetSevr(ptimer,WRITE_ALARM,VALID_ALARM);
|
||
}
|
||
return;
|
||
}
|
||
|
||
/*
|
||
* READ_TIMER
|
||
*
|
||
* read the current timer pulses and convert them to engineering units
|
||
*/
|
||
static void read_timer(ptimer)
|
||
struct timerRecord *ptimer;
|
||
{
|
||
struct vmeio *pvmeio;
|
||
int source;
|
||
int ptst;
|
||
int no_pulses;
|
||
double time_pulse[2]; /* delay and width */
|
||
double constant;
|
||
|
||
/* initiate the write */
|
||
if (ptimer->out.type != VME_IO) {
|
||
recGblRecordError(S_dev_badOutType,ptimer,"read_timer");
|
||
return;
|
||
}
|
||
|
||
/* only supports a one channel VME timer module !!!! */
|
||
|
||
pvmeio = (struct vmeio *)(&ptimer->out.value);
|
||
|
||
/* put the value to the ao driver */
|
||
if (time_driver_read((int)pvmeio->card, /* card number */
|
||
(int)pvmeio->signal, /* signal number */
|
||
(int)ptimer->dtyp, /* card type */
|
||
&source, /* trigger source */
|
||
&ptst, /* pre-trigger state */
|
||
&time_pulse[0], /* delay/width */
|
||
&no_pulses, /* number pulses found */
|
||
1) < 0) return;
|
||
|
||
if (no_pulses == 0) return;
|
||
|
||
/* convert according to time units */
|
||
constant = constants[ptimer->timu];
|
||
|
||
/* timing pulse 1 is currently active */
|
||
/* put its parameters into the database so that it will not change */
|
||
/* when the timer record is written */
|
||
ptimer->rdt1 = time_pulse[0] * constant; /* delay to trigger */
|
||
ptimer->rpw1 = time_pulse[1] * constant; /* pulse width */
|
||
return;
|
||
}
|