apm problem

[liamfoy at sepulcrum.org]

Nate Lawson <nate at root.org> wrote on 24.06.2004, 00:47:17:
> On Wed, 23 Jun 2004, M. Warner Losh wrote:
> > In message: 
> >             Nate Lawson  writes:
> > : On Fri, 23 Jun 2000, Liam J. Foy wrote:
> > : > On Wed, 23 Jun 2004 12:40:40 -0700 (PDT)
> > : > We decided to go with -1. The apm.c patch currently will not apply due to
> > : > the re-structure of apm. The following patch will:
> > : >
> > : > http://liamfoy.kerneled.org/apm.diff
> > :
> > : Ok, good.  That should help Warner.
> > :
> > : > After more digging, apm -l should return 255(stated in man page and acpi spec).
> > : > The following patch will make it work:
> > : >
> > : > --- /usr/src/sys/dev/acpica/acpi_cmbat.c	Tue Jun 22 16:40:35 2004
> > : > +++ /hd2/acpi_cmbat.c	Tue Jun 22 17:02:18 2004
> > : > @@ -449,7 +449,7 @@
> > : >      static int	bat_units = 0;
> > : >      static struct acpi_cmbat_softc **bat = NULL;
> > : >
> > : > -    cap = min = -1;
> > : > +    cap = min = 255;
> > : >      batt_stat = ACPI_BATT_STAT_NOT_PRESENT;
> > : >      error = 0;
> > : >
> > : > @@ -545,7 +545,7 @@
> > : >
> > : >      /* Battery life */
> > : >      if (valid_units == 0) {
> > : > -	cap = -1;
> > : > +	cap = 255;
> > : >  	batt_stat = ACPI_BATT_STAT_NOT_PRESENT;
> > : >      } else {
> > : >  	cap = total_cap / valid_units;
> > : > @@ -649,7 +649,7 @@
> > : >      }
> > : >
> > : >      if (!sc->present) {
> > : > -	battinfo->cap = -1;
> > : > +	battinfo->cap = 255;
> > : >  	battinfo->min = -1;
> > : >  	battinfo->state = ACPI_BATT_STAT_NOT_PRESENT;
> > : >      } else {
> > :
> > : I disagree with this.  Capacity and time remaining are both quantities
> > : represented by ints that we calculate.  The man page should be updated if
> > : it's incorrect.
> >
> > That's why I've been reluctant to make these changes...
> 
> Let's just update the man page.  The use of -1 is the actual behavior and
> programs have been written that count on this.

Right ok. I just gathered that's what needed returning. Anyway
I will patch it when I get home and mail the acpi@ list the patch
for one of you guys to commit.

> 
> -Nate
-- 
Best Regards,
Liam Foy <liamfoy(@)sepulcrum(.)org>
"FreeBSD, the power to serve!"