touchpad on Panasonic Toughbook CF-MX4

[cederom]

Hello world :-)

As we started working on CF-MX4 touchpad in a similar related issue #51 but this does not look like a trivial task I have created a dedicated Issue :-)

Getting back to @wulf7 suggestion:

It is quite possible that this touchpad can enable multitouch only over SMBus.

One thing you can try is to probe touchpad with active multiplexing mode enabled, like Linux does.
Replace 2 with 1 in following snippet. It is around line 6282 of sys/dev/atkbdc/psm.c and rebuild kernel.
Don't forget to remove hw.psm.mux_disabled=1 from /boot/loader.conf

        /* psm has a special support for GenMouse + SynTouchpad combination */
        if (active_ports_count >= 2) {
                for (port = 0; port < KBDC_AUX_MUX_NUM_PORTS; port++) {

So I have changed that psm.c driver recompiled a system (12-STABLE as 12.2-RELEAE currently does not build), created a memstick image to boot from. Log files are attached.

psm-panasonic-cfmx4-dmesg.txt
psm-panasonic-cfmx4-dmesg-full.txt
psm-panasonic-cfmx4-sysctl.txt

[cederom]

I have two CF-MX4 laptops (they are really cool and cheap second hand), so I can now test both of them :-)

12.2-RELEASE (my main workstation):

psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model Generic PS/2 mouse, device ID 0-00, 2 buttons
psm0: config:00000000, flags:00000008, packet size:3
psm0: syncmask:c0, syncbits:00
psm: status 30 02 64
psm: status 30 02 64

Modified 12-STABLE (with if (active_ports_count >= 1) patch):

psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model Synaptics Touchpad, device ID 0-00, 3 buttons
psm0: config:00004000, flags:00000008, packet size:3
psm0: syncmask:00, syncbits:00
psm: SET_RESOLUTION (0) 00fa
psm: SET_RESOLUTION (0) 00fa
psm: SET_RESOLUTION (0) 00fa
psm: SET_RESOLUTION (1) 00fa
psm: SEND_AUX_DEV_STATUS return code:00fa
psm: status 24 4b c5
psm: ENABLE_DEV return code:00fa
psm: SEND_AUX_DEV_STATUS return code:00fa
psm: status 80 20 02
psm: SET_SAMPLING_RATE (100) 00fa
psm: SET_RESOLUTION (0) 00fa
psm: SET_SCALING11 return code:00fa
psm: SEND_AUX_DEV_STATUS return code:00fa
psm: status 20 02 64

Wow it seems that this patch made device recognized as Synaptics! I will have to recompile 12.2-RELEASE kernel with this patch and let you know :-)

[cederom]

WHOAH! ITS ALIVE! ALIVE!!! =)

dev.psm.0.%parent: atkbdc0
dev.psm.0.%pnpinfo:
dev.psm.0.%location:
dev.psm.0.%driver: psm
dev.psm.0.%desc: PS/2 Mouse
dev.psm.%parent:
dev.psmcpnp.0.%parent: acpi0
dev.psmcpnp.0.%pnpinfo: _HID=SYN0503 _UID=0
dev.psmcpnp.0.%location: handle=\_SB_.PCI0.LPCB.PS2M
dev.psmcpnp.0.%driver: psmcpnp
dev.psmcpnp.0.%desc: PS/2 mouse port
dev.psmcpnp.%parent:

Needs some configuration but it works! You are the greatest of the master wizards of the known universe @wulf7 ! Thank You!! Can you make it to the upstream kernel? =)

[cederom]

It even works (and works better) on Xorg without xf86-input-synaptics driver :-)

We need to put that patch into upstream! I got back my joy of working with a laptop! :-)

The natural scroll sysctl does not seem to work so I found that trick on forums:

echo 'pointer = 1 2 3 4 5 6 7 8 9 10' > ~/.xmodmap
xmodmap ~/.xmodmap

Update 1: This xmodmap swaps scroll direction for all devices, even my external mouse, what is no good. sysctl seems to have no impact here as libinput is used for input..? How can I change scroll direction only for trackpad? :-)

Update 2: Scroll only for Trackpad can be done with:

xinput set-button-map "SynPS/2 Synaptics TouchPad" 1 2 3 5 4 6 7 8 9 10

[cederom]

The correct way to handle Touchpad configuration is LIBINPUT, not really moused, xinput, or xmodmap. Use /usr/local/share/X11/xorg.conf.d/40-libinput.conf like:

Section "InputClass"
        Identifier "libinput touchpad catchall"
        MatchIsTouchpad "on"
        MatchDevicePath "/dev/input/event5"
        Option "NaturalScrolling" "on"
        Option "Tapping" "on"
        Option "ClickMethod" "clickfinger"
        Driver "libinput"
EndSection

You can update the main readme :-)

[cederom]

Hello @wulf7 any chance to fix the psm driver in FreeBSD? I have upgraded to 13.0 and still trackpad gestures does not work on my Panasonic Toughbook CF-MX4 :-(

[wulf7]

Hi @cederom,

Could you follow instructions from https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253279 ?

[cederom]

The issue was fixed and landed into 13-STABLE. It should get into a RELEASE soon I hope :-)

TANK YOU @wulf7 !!! :-)