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Peter Hutterer 46eab97538 touchpad: work palm detection into the tap state machine 
Unlike the already-existing thumb detection, a touch may be labelled palm at
any time, not just during the initial touch down. This requires full
integration into the tap state machine to unwind properly. For most states, a
palm detection simply ignores the finger and reverts to the most recent state.

One exception is the case of two fingers down, one finger up followed by the
remaining finger detected as a palm finger. This triggers a single-finger tap
but with timestamps that may be from the wrong finger. Since we're within a
short tap timeout anyway this should not matter too much.

The special state PALM_UP is only handled in one condition (DEAD). Once a
touch is a palm we basically skip over it from then on. If we end up in the
DEAD state after a button press we still need to handle the palm up events
accordingly to be able to return to IDLE. That transition also requires us to
have an accurate count of the real fingers down (palms don't count) so we need
a separate nfingers_down counter for tapping.

https://bugs.freedesktop.org/show_bug.cgi?id=103210

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2017-11-20 11:31:56 +10:00
..
50-litest.conf test: Prefix litest created device names with litest 2014-06-25 11:11:45 +10:00
build-cxx.cc test: Add include from C++ build test 2014-03-29 00:51:44 +01:00
build-pedantic.c Fix a couple of coding style issues 2015-05-01 12:09:57 +10:00
generate-gcov-report.sh Hook up gcov for coverage reports 2017-01-20 10:35:37 +10:00
litest-device-acer-hawaii-keyboard.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-acer-hawaii-touchpad.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-alps-dualpoint.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-alps-semi-mt.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-anker-mouse-kbd.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-apple-appletouch.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-apple-internal-keyboard.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-apple-magicmouse.c test: fix the device name for the magic mouse test device 2017-11-02 10:21:46 +10:00
litest-device-asus-rog-gladius.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-atmel-hover.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-bcm5974.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-calibrated-touchscreen.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-cyborg-rat-5.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-elantech-touchpad.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-generic-singletouch.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-gpio-keys.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-hp-wmi-hotkeys.c test: add the wmi hotkeys test device 2017-11-09 10:36:03 +10:00
litest-device-huion-pentablet.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-ignored-mouse.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-keyboard-all-codes.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-keyboard-razer-blackwidow.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-keyboard-razer-blade-stealth-videoswitch.c Merge branch 'wip/litest-use-sections-for-tests-v2' 2017-09-25 14:35:46 +10:00
litest-device-keyboard-razer-blade-stealth.c Merge branch 'wip/litest-use-sections-for-tests-v2' 2017-09-25 14:35:46 +10:00
litest-device-keyboard.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-lid-switch-surface3.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-lid-switch.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-logitech-trackball.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-magic-trackpad.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-mouse-low-dpi.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-mouse-roccat.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-mouse-wheel-click-angle.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-mouse-wheel-click-count.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-mouse-wheel-tilt.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-mouse.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-ms-surface-cover.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-nexus4-touch-screen.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-protocol-a-touch-screen.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-qemu-usb-tablet.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-synaptics-hover.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-synaptics-i2c.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-synaptics-rmi4.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-synaptics-st.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-synaptics-t440.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-synaptics-x1-carbon-3rd.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-synaptics.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-thinkpad-extrabuttons.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-touch-screen.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-touchscreen-fuzz.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-trackpoint.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-uclogic-tablet.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-vmware-virtual-usb-mouse.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-wacom-bamboo-2fg-finger.c test: add a wacom bamboo test device 2017-10-20 15:44:32 +10:00
litest-device-wacom-bamboo-2fg-pad.c test: add a wacom bamboo test device 2017-10-20 15:44:32 +10:00
litest-device-wacom-bamboo-2fg-pen.c test: add a wacom bamboo test device 2017-10-20 15:44:32 +10:00
litest-device-wacom-bamboo-16fg-pen.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-wacom-cintiq-12wx-pen.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-wacom-cintiq-13hdt-finger.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-wacom-cintiq-13hdt-pad.c test: fix pid for the 13HDT pad 2017-10-20 15:44:32 +10:00
litest-device-wacom-cintiq-13hdt-pen.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-wacom-cintiq-24hd-pen.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-wacom-cintiq-24hdt-pad.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-wacom-ekr.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-wacom-hid4800-pen.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-wacom-intuos3-pad.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-wacom-intuos5-finger.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-wacom-intuos5-pad.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-wacom-intuos5-pen.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-wacom-isdv4-e6-finger.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-wacom-isdv4-e6-pen.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-wacom-mobilestudio-pro-pad.c test: fix missing BTN_9 for the MobileStudio device 2017-10-20 15:44:32 +10:00
litest-device-waltop-tablet.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-wheel-only.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-xen-virtual-pointer.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-device-yubikey.c test: switch to a TEST_DEVICE macro for all the litest test devices 2017-09-21 15:06:17 +10:00
litest-int.h Drop HAVE_CONFIG_H ifdef 2016-12-01 11:06:54 +10:00
litest-selftest.c test: fix compiler warning 2016-01-20 12:56:35 +10:00
litest.c test: restore the non-debounced litest_button_click() 2017-11-20 11:31:56 +10:00
litest.h test: restore the non-debounced litest_button_click() 2017-11-20 11:31:56 +10:00
symbols-leak-test.in test: allow running the symbols-leak-test.in script directly 2017-05-04 13:49:37 +10:00
test-device.c test: replace a litest button with a litest key call 2017-11-20 11:31:56 +10:00
test-gestures.c test: fix typo in test case name 2017-08-17 02:03:15 +02:00
test-keyboard.c Fix a few things scan-build complains about 2017-07-10 10:37:58 +10:00
test-log.c test: fix a comment in the log_priority test 2017-10-10 19:09:29 +10:00
test-misc.c test: restore the non-debounced litest_button_click() 2017-11-20 11:31:56 +10:00
test-pad.c test: restore the non-debounced litest_button_click() 2017-11-20 11:31:56 +10:00
test-path.c Add support for LIBINPUT_IGNORE_DEVICE 2017-08-23 14:56:51 +10:00
test-pointer.c evdev: add new debouncing code 2017-11-20 09:55:05 +10:00
test-switch.c test: use litest_wait_for_event() for the lid switch events 2017-11-17 10:01:05 +10:00
test-tablet.c tablet: always enable the no-proximity-out quirk on HUION tablets 2017-09-21 12:27:46 +10:00
test-touch.c test: add a test for removing a touch device with a finger still down 2017-08-28 14:25:17 +10:00
test-touchpad-buttons.c test: restore the non-debounced litest_button_click() 2017-11-20 11:31:56 +10:00
test-touchpad-tap.c touchpad: work palm detection into the tap state machine 2017-11-20 11:31:56 +10:00
test-touchpad.c test: restore the non-debounced litest_button_click() 2017-11-20 11:31:56 +10:00
test-trackball.c test: prefix all test source files with "test-" 2017-01-16 08:59:00 +10:00
test-trackpoint.c test: replace litest_button_click with a debounced version 2017-11-20 09:55:05 +10:00
test-udev.c Add support for LIBINPUT_IGNORE_DEVICE 2017-08-23 14:56:51 +10:00
valgrind.suppressions evdev: recover from a lost button count 2017-07-25 09:30:24 +10:00