d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix a botch where we wrote the year register with > 2 digits (and

Browse Source 
then knocked the extra digits off). Blegh. Update the comment and
adjustment method reading the chip clock year register to note that
anything less than 70 means we're past the year 2000.
This commit is contained in:
mjacob 2001-03-09 20:39:02 +00:00
parent c46089815b
commit a6a451d74a
1 changed files with 6 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
sys/dev/dec/mcclock.c
View File

@ -85,9 +85,10 @@ mcclock_get(device_t dev, time_t base, struct clocktime *ct)
ct->mon = regs[MC_MONTH];
ct->year = regs[MC_YEAR];
/*
* This chip is not y2k compliant, so we'll do a 10 year window fix.
* This chip is not y2k compliant- If it's less than
* 70, we're clearly past the year 2000.
*/
if (ct->year >= 0 && ct->year < 10) {
if (ct->year < 70) {
ct->year += 100;
}
}
@ -111,15 +112,11 @@ mcclock_set(device_t dev, struct clocktime *ct)
regs[MC_DOW] = ct->dow;
regs[MC_DOM] = ct->day;
regs[MC_MONTH] = ct->mon;
regs[MC_YEAR] = ct->year;
/*
* This chip is not y2k compliant, so we'll do a 10 year window fix.
* It's probably okay to write more than 100, but let's not and
* and say we didn't.
* This chip is not y2k compliant- write it with
* no more than two digits.
*/
if (ct->year >= 100) {
ct->year -= 100;
}
regs[MC_YEAR] = ct->year % 100;
s = splclock();
MC146818_PUTTOD(dev, &regs);
splx(s);