Re: [SeaBIOS] USB keyboard and mouse not detected

[Nils]

Hi Kevin,

You wrote:
> > > Out of curiousity, if you disable ohci_free_pipe() (by adding a
> > > "return" as the first statement of the function) does the keyboard
> > > work long enough to get to the boot menu?
> >
> > I tested this and i couldn't get to the boot menu.
>
> Okay - that's weird.  I wonder if this isn't just a matter of the
> "free" code being incorrect.  Can you send the log of the session with
> ohci_free_pipe disabled?

As i do not have a normal USB keyboard at the moment (last december i
borrowed one) i have tested latest git again with my wireless Logitech
keyboard/mouse combo.
See attached log.

If you prefer a log with a normal USB keyboard i will try to borrow it
again.

I have tried to debug this a little but had no succes yet.

I tried to understand the OHCI spec.
Am i right that you use the "LEGACY SUPPORT INTERFACE SPECIFICATION" via
emulation interrupts and Legacy Support Registers 100h, 104h,(i/o
address 60h) 108h(i/o address 60h) and 10Ch(i/o address 64h) ?

I have "# CONFIG_PS2PORT is not set" because my target doesn't have a
ps2 keyboard controller.

I could not find the Legacy Support Register: HceControl (100h) being
setup in SeaBIOS .(for emulating 60h + 64h)

I think i found some code for that in Geode VSA that i suspect to be
wrong, but i'm not sure yet.

I also attached a lspci with coreboot/SeaBIOS + linux for reference.

USB keyboard and mouse not detected

[Kevin O'Connor]

On Tue, Feb 14, 2012 at 10:00:48PM +0100, Nils wrote:
> Hi Kevin,
>
> You wrote:
> > > > Out of curiousity, if you disable ohci_free_pipe() (by adding a
> > > > "return" as the first statement of the function) does the keyboard
> > > > work long enough to get to the boot menu?
> > >
> > > I tested this and i couldn't get to the boot menu.
> >
> > Okay - that's weird.  I wonder if this isn't just a matter of the
> > "free" code being incorrect.  Can you send the log of the session with
> > ohci_free_pipe disabled?

Hrmm - your log indicates it did get to the menu:
> USB keyboard initialized
> Press F12 for boot menu.

Was the output not on the screen, or is it just that you couldn't
actually get the menu to come up when hitting F12?
> As i do not have a normal USB keyboard at the moment (last december i
> borrowed one) i have tested latest git again with my wireless Logitech
> keyboard/mouse combo.
> See attached log.
>
> If you prefer a log with a normal USB keyboard i will try to borrow it
> again.

I don't think it matters - the log shows your keyboard is being
detected.
> I have tried to debug this a little but had no succes yet.
>
> I tried to understand the OHCI spec.
> Am i right that you use the "LEGACY SUPPORT INTERFACE SPECIFICATION" via
> emulation interrupts and Legacy Support Registers 100h, 104h,(i/o
> address 60h) 108h(i/o address 60h) and 10Ch(i/o address 64h) ?

No - SeaBIOS uses the normal USB interface.  The "legacy" stuff
involves SMIs and is platform dependent.  Using the standard interface
is more portable.

-Kevin