Date: Mon, 4 Dec 1995 12:04:52 +0100 (MET) From: hm@altona.hamburg.com (Hellmuth Michaelis) To: FreeBSD-gnats-submit@freebsd.org Subject: i386/867: APM resume not rx'd with 3Com589C in PCMCIA slot Message-ID: <m0tMYhY-00001nC@ernie.altona.hamburg.com> Resent-Message-ID: <199512041140.DAA23115@freefall.freebsd.org>
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>Number: 867
>Category: i386
>Synopsis: Notebook with APM and 3C589C in PCMCIA freezes after suspended
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Dec 4 03:40:02 PST 1995
>Last-Modified:
>Originator: Hellmuth Michaelis
>Organization:
none
>Release: FreeBSD 2.0.5 / FreeBSD 2.1.0
>Environment:
digital HiNote 433 notebook (supports APM version 1.1)
compiled with APM suppport
3Com 3C589C PCMCIA card installed in slot 0
zp driver for the above card configured into the kernel
>Description:
On a DEC HiNote 433 notebook APM functions fine as long as i don't
plug a 3Com 3C589C into the PCMCIA slot - if i do, and want to
APM-resume after a APM-suspend, the display is switched on but
nothing more happenes.
(compiling with APM_DEBUG defined: without the card i get the
suspend and the resume message, with the card i just get the
suspend message but no resume message; compiling with
APM_SLOWSTART=5 makes no difference if that matters)
>How-To-Repeat:
On a DEC HiNote 433, compile a kernel with APM support and the
"zp" driver and place the system into suspend mode by either
executing zzz or close the cover. The machine will freeze and
never wake up again - the power has to be cycled.
>Fix:
In if_zp.c got from the 2.1 tree:
* From: if_ep.c,v 1.9 1994/01/25 10:46:29 deraadt Exp $
* $Id: if_zp.c,v 1.6.4.1 1995/08/19 23:27:14 davidg Exp $
delete the following statement on line 726 of function zp_suspend():
pcic_power_off(sc->slot);
When compiled with APM support, the power switching is completely
controlled by the APM BIOS. When the system is suspended by the
apm driver, it is done with a parameter specifying to handle ALL
devices and this obviously interferes with switching the power off
for a PCMCICA slot in the device specific suspend hook routine.
After the deletion of the above mentioned statement the system
can be suspended and resumed in the above described configuration
without errors or other side effects.
hellmuth
--
Hellmuth Michaelis hm@altona.hamburg.com Hamburg, Europe
(A)bort, (R)etry, (I)nstall BSD ?
>Audit-Trail:
>Unformatted:
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