CVS commit: [netbsd-5] src/sys/dev/apm

[Jeff Rizzo <riz%netbsd.org@localhost>]

Module Name:    src
Committed By:   riz
Date:           Sat Mar 13 07:27:09 UTC 2010

Modified Files:
        src/sys/dev/apm [netbsd-5]: apm.c

Log Message:
Pull up following revision(s) (requested by bouyer in ticket #1337):
        sys/dev/apm/apm.c: revision 1.26
Fix apm(4) suspend/resume:
- apm_suspend() and apm_standby() will call splhhigh() before entering
  standby or suspend. After resume, the system go back tsleep()ing
  in the apm thread without restoring the ipl (this is done in
  apm_resume()), and calling tlseep() at IPL_HIGH cause a DIAGNOSTIC
  panic (and other bad things, I guess).
  Fix by calling apm_resume() from within apm_suspend() or apm_standby(),
  after aa_set_powstate() has returned.
- In apm_event_handle(), we test (apm_standbys || apm_suspends) to set
  apm_damn_fool_bios to 1 and break the while() loop in apm_periodic_check().
  But we set apm_standbys or apm_suspends to non-0 only if apm_op_inprog
  is 0 and we failed to record the apm event. With apmd listening
  we usually succeed recording the event, so apm_standbys/apm_suspends remains
  0 and we never go out of the while() loop.
  Fix by apm_op_inprog instead of (apm_standbys || apm_suspends)
  to break the loop.


To generate a diff of this commit:
cvs rdiff -u -r1.22 -r1.22.6.1 src/sys/dev/apm/apm.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.