FYI: Panasonic Toughbook CF-R4 can suspend/resume

John Baldwin jhb at freebsd.org
Fri Jun 9 12:54:24 UTC 2006


On Sunday 04 June 2006 07:08, Norikatsu Shigemura wrote:
> 	I confirmed 3rd generation CF-R4 (Panasonic Toughbook/
> 	Let's Note series, 2006 Spring Model) can suspend/resume:-)
> 	with following settings.
> 
> Add to /boot/loader.conf
> - - - - - - - - - - - - - - - -
> hint.apic.0.disabled="1"
> hint.psm.0.flags="0x2000"
> - - - - - - - - - - - - - - - -

Does it work if you don't disable APIC?

> 	And, mita-san (mita at FreeBSD.org) has CF-W4 (3rd
> 	generation).  It can suspend/resume:-), too.  But Ume-san
> 	(ume@) has CF-R4(1st generation), it cannot suspend/resume:-(.
> 	Takahashi-san(nyan@) has CF-R3, same too:-(.
> 
> 	I read /usr/src/sys/i386/i386/io_apic.c, and I'm suprised
> 	following code:
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> #define TODO		printf("%s: not implemented!\n", __func__)
> 
> static void
> ioapic_suspend(struct intsrc *isrc)
> {
> 	TODO;
> }
> 
> static void
> ioapic_resume(struct intsrc *isrc)
> {
> 	ioapic_program_intpin((struct ioapic_intsrc *)isrc);
> }
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> 
> 	Hum....................

It's actually implemented.  However, the atpic isn't being reinitialized on 
resume and that's probably the problem.

-- 
John Baldwin


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