On Saturday 17 December 2011 16:07:42 Seth Forshee wrote:
> On Sat, Dec 17, 2011 at 04:32:14AM -0700, Azael Avalos wrote:
> > 2011/12/17 Thomas Renninger <trenn@xxxxxxx>:
> > > On Thursday 15 December 2011 19:06:09 Seth Forshee wrote:
> > > ...
> > >> +static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
> > >> + struct serio *port)
> > >> +{
> > >> + if (str & 0x20)
> > >> + return false;
> > >> +
> > >> + if (unlikely(data == 0xe0))
> > >> + return false;
> > >> +
> > >> + if ((data & 0x7f) == TOS1900_FN_SCAN) {
> > >> + schedule_work(&toshiba_acpi->hotkey_work);
> > >> + return true;
> > >> + }
> > > What have you tried to check whether some other kind of ACPI event
> > > is happening?
> > > Do any acpi/SCI interrupts happen?:
> > > watch -n1 "cat /proc/interrupts |grep acpi"
> >
> > I already did this, no events whatsoever, I was using a Satellite X205
> > at the time
>
> I've done similar checks on the NB505, no events.
Ok.
> > > Could it by chance be an EC or other device GPE/SCI?
> > >
> >
> > Seth mentioned me something about this, but w/o proper docs from
> > Toshiba, we are blindly shooting.
> >
> > Seth?
>
> In the DSDTs I've inspected there is an EC query method that looks like
> it handles events for the hotkeys, but I've never been able to find
> anything that will cause the GPE to trigger when the hotkeys are
> pressed.
Be careful, those EC event notifications do not show up in:
/sys/firmware/acpi/interrupts/gpe*
If no acpi irqs are happening (you said you've tried already):
watch -n1 "cat /proc/interrupts |grep acpi"
filtering the key events sounds appropriate.
I see you dig quite a bit already:
> Interestingly, I also saw that the Windows hotkey driver for the NB505
> logs some messages that indicate it's also filtering Fn key presses, and
> I also found that the binary contains the NTFY string. That's not proof
> of anything, but it does suggest that the Windows driver might be doing
> something similar to support hotkeys. Which makes me wonder if the GPE
> works at all.
Nice work.
Thomas
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