[Bug 205690] [psm] [patch]: support for Elantech trackpads

Tue Jul 26 15:06:49 UTC 2016

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=205690

--- Comment #32 from Ben Woods <woodsb02 at freebsd.org> ---
Hi Vladimir,

Please see below the same details for my touchpad.

# dmesg
...
skipped
...
psm0: current command byte:0065
psm: ENABLE_DEV return code:00fa
psm: DISABLE_DEV return code:00fa
psm: SEND_AUX_DEV_STATUS return code:00fa
psm: status 00 02 64
psm: SEND_DEV_ID return code:00fa
psm: device ID: 0000
psm: SET_RESOLUTION (0) 00fa
psm: SET_SCALING11 return code:00fa
psm: SET_SCALING11 return code:00fa
psm: SET_SCALING11 return code:00fa
psm: SEND_AUX_DEV_STATUS return code:00fa
psm: status 3c 03 00
psm: SET_RESOLUTION (3) 00fa
psm: SET_SCALING11 return code:00fa
psm: SET_SCALING11 return code:00fa
psm: SET_SCALING11 return code:00fa
psm: SEND_AUX_DEV_STATUS return code:00fa
psm: status 3c 03 00
psm: SET_RESOLUTION (3) 00fa
psm: SET_SCALING11 return code:00fa
psm: SET_SCALING11 return code:00fa
psm: SET_SCALING11 return code:00fa
psm: SEND_AUX_DEV_STATUS return code:00fa
psm: status 3c 03 00
psm: SET_SCALING11 return code:00fa
psm: SET_RESOLUTION (0) 00fa
psm: SET_RESOLUTION (3) 00fa
psm: SET_RESOLUTION (2) 00fa
psm: SET_RESOLUTION (1) 00fa
psm: SET_RESOLUTION (3) 00fa
psm: SET_RESOLUTION (1) 00fa
psm: SET_RESOLUTION (2) 00fa
psm: SET_RESOLUTION (3) 00fa
psm: SEND_AUX_DEV_DATA return code:00fa
psm: data 00 00 ffffffff
psm: SET_SAMPLING_RATE (200) 00fa
psm: SET_SAMPLING_RATE (100) 00fa
psm: SET_SAMPLING_RATE (80) 00fa
psm: SEND_DEV_ID return code:00fa
psm: device ID: 0000
psm: SET_SAMPLING_RATE (200) 00fa
psm: SET_SAMPLING_RATE (200) 00fa
psm: SET_SAMPLING_RATE (80) 00fa
psm: SEND_DEV_ID return code:00fa
psm: device ID: 0000
psm: SET_SAMPLING_RATE (200) 00fa
psm: SET_SAMPLING_RATE (100) 00fa
psm: SET_SAMPLING_RATE (80) 00fa
psm: SET_SAMPLING_RATE (60) 00fa
psm: SET_SAMPLING_RATE (40) 00fa
psm: SET_SAMPLING_RATE (20) 00fa
psm: SEND_DEV_ID return code:00fa
psm: device ID: 0000
psm: SEND_DEV_ID return code:00fa
psm: device ID: 0000
psm: SET_SCALING11 return code:00fa
psm: SET_RESOLUTION (0) 00fa
psm: SET_RESOLUTION (0) 00fa
psm: SET_RESOLUTION (0) 00fa
psm: SET_RESOLUTION (0) 00fa
psm: SEND_AUX_DEV_STATUS return code:00fa
psm: status 7a f0 1c
psm: SET_SCALING11 return code:00fa
psm: SET_SCALING11 return code:00fa
psm: SET_SCALING11 return code:00fa
psm: SEND_AUX_DEV_STATUS return code:00fa
psm: status 3c 03 00
psm: SET_SCALING11 return code:00fa
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 46 1f 01
Elantech touchpad hardware v.4 firmware v.0x461f01
psm: SEND_AUX_DEV_STATUS return code:00fa
psm: status 10 15 0e
psm: SEND_AUX_DEV_STATUS return code:00fa
psm: status 06 66 04
psm: SET_SCALING11 return code:00fa
psm: SEND_AUX_DEV_STATUS return code:00fa
psm: status 7a f0 1c
  Model information:
   MaxX:     2800
   MaxY:     1820
   DpmmX:    33
   DpmmY:    33
   TracesX:  20
   TracesY:  13
   SemiMT:   0
   Clickpad: 1
   Trackpad: 0
   CRC:      0
   Pressure: 1
psm0: found Elantech Touchpad
psm: SET_RESOLUTION (2) 00fa
psm: SET_SAMPLING_RATE (100) 00fa
psm: SET_SCALING11 return code:00fa
psm: SEND_AUX_DEV_STATUS return code:00fa
psm: status 00 02 64
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model Elantech Touchpad, device ID 0-00, 1 buttons
psm0: config:00004000, flags:00000008, packet size:6
psm0: syncmask:04, syncbits:00
...
skipped
...
psm: ENABLE_DEV return code:00fa
psm: SEND_AUX_DEV_STATUS return code:00fa
psm: status 20 02 64
psm: SET_SAMPLING_RATE (100) 00fa
psm: SET_RESOLUTION (2) 00fa
psm: SET_SCALING11 return code:00fa
psm: SEND_AUX_DEV_STATUS return code:00fa
psm: status 20 02 64

# sysctl hw.psm.elantech
hw.psm.elantech.softbutton3_x: 1400
hw.psm.elantech.softbutton2_x: 0
hw.psm.elantech.softbuttons_y: 455
hw.psm.elantech.touchpad_off: 0
hw.psm.elantech.vscroll_div_max: 50
hw.psm.elantech.vscroll_div_min: 30
hw.psm.elantech.vscroll_min_delta: 15
hw.psm.elantech.vscroll_ver_area: 0
hw.psm.elantech.vscroll_hor_area: 0
hw.psm.elantech.taphold_timeout: 125000
hw.psm.elantech.tap_min_queue: 2
hw.psm.elantech.tap_max_delta: 25
hw.psm.elantech.div_len: 30
hw.psm.elantech.div_max_na: 10
hw.psm.elantech.div_max: 6
hw.psm.elantech.div_min: 3
hw.psm.elantech.weight_len_squared: 200
hw.psm.elantech.weight_previous_na: 20
hw.psm.elantech.weight_previous: 6
hw.psm.elantech.weight_current: 3
hw.psm.elantech.multiplicator: 10000
hw.psm.elantech.window_max: 10
hw.psm.elantech.window_min: 4
hw.psm.elantech.na_left: 0
hw.psm.elantech.na_bottom: 0
hw.psm.elantech.na_right: 0
hw.psm.elantech.na_top: 0
hw.psm.elantech.margin_left: 0
hw.psm.elantech.margin_bottom: 0
hw.psm.elantech.margin_right: 0
hw.psm.elantech.margin_top: 0
hw.psm.elantech.max_width: 10
hw.psm.elantech.max_pressure: 220
hw.psm.elantech.min_pressure: 1
hw.psm.elantech.two_finger_scroll: 1
hw.psm.elantech.directional_scrolls: 0

# grep -i psm /boot/loader.conf
hw.psm.elantech_support="1"
debug.psm.loglevel="2"

# grep -i psm /etc/sysctl.conf
hw.psm.elantech.softbutton2_x=0         # Disable middle click in touchpad
button area
hw.psm.elantech.softbutton3_x=1400      # Move touchpad right click button left
axis to middle

I also performed the tests you requests (with two finger scroll and then
releasing left or right finger before the other). In either case, the cursor
movement on releasing the fingers was minimal... a few pixels either way, but
that may be caused by the lifting of the finger off the touchpad.

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