Swapping Ctrl and Fn on X200

[Danny Milosavljevic]

Hi,

I'm trying to swap Ctrl and Fn keys on the X200 (with libreboot).

For this I made sure that nvram is not wiped on reboot, then set

fn_ctrl_swap = Enable

using nvramtool.

This doesn't swap Fn and Ctrl for some reason. For comparison, as soon
as I change "trackpoint = Enable" to "trackpoint = Disable", the
trackpoint stops working - so I know that the nvram is not completely
ignored.

So next I found
http://forum.notebookreview.com/threads/fn-ctrl-swap-on-all-lenovo-laptops-s...
, unpacked it and compared it to Lenovo's original. The changes are in:

"6DET64WW/$01B9000.FL2" (47 Byte differ, starting at decimal offset
2713050 but not a continuous range - the last change is right before
decimal offset 2818048),
"7XET64WW/$01B9100.FL2" (47 Byte differ, starting at decimal offset
2713050 but not a continuous range - the last change is right before
decimal offset 2818048).

If I want to both use libreboot and swap Fn and Ctrl (so Ctrl is to
the left), how do I get these changes into it?

With kind regards,
   Danny

[Peter Stuge]

Danny Milosavljevic wrote:
> "6DET64WW/$01B9000.FL2" (47 Byte differ

Is that a blob?
> want to .. use libreboot

//Peter

[Danny Milosavljevic]

Hello,

On Sun, 23 Aug 2015 19:03:47 +0200
Peter Stuge  wrote:
> Is that a blob?

Yes. I think it's part of the embedded controller and someone patched
the binary in order to allow fn_ctrl_swap - it doesn't seem to be able
to swap them without it - although the option exists in libreboot
nvramtool and does nothing.

As far as I know, embedded controller (Renesas Hitachi H8, Family 740)
is ignored (not flashed) so far and there is indeed a blob. There's a
Summer of Code under way to change that but it doesn't even boot the
laptop yet.

By now I found binutils-h8300-hms in order to be able to assemble and
disassemble the EC and I'm currently trying to find out whether the
Renesas has its own flash onboard or what. I have a SOIC 16 test chip
but maybe it needs another one / is SMD with insane pin count, let's
see.

There was an old project called ec-18s but I don't think it's for X200.
I can see https://github.com/lynxis/h8s-ec but that doesn't seem to be
for X200 either.

With kind regards,
    Danny