pad: fix missing newline for mode group error messages

Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1380>

.clang-format

@@ -74,6 +74,7 @@ ForEachMacros:
   - tp_for_each_touch
   - range_for_each
   - litest_log_group
+  - litest_with_logcapture
   - litest_with_parameters
   - litest_with_event_frame
   - udev_list_entry_foreach

.clang-tidy

@@ -4,4 +4,4 @@
 Checks: >
   -clang-analyzer-unix.Malloc,
   -clang-analyzer-optin.core.EnumCastOutOfRange
-WarningsAsErrors: true
+WarningsAsErrors: '*'

.gitlab-ci.yml

@@ -98,11 +98,11 @@ variables:
   # See the documentation here:                                                 #
   # https://wayland.freedesktop.org/libinput/doc/latest/building.html           #
   ###############################################################################
-  FEDORA_PACKAGES:  'git-core gcc gcc-c++ pkgconf-pkg-config meson check-devel libudev-devel libevdev-devel doxygen graphviz python3-sphinx python3-recommonmark python3-sphinx_rtd_theme python3-pytest-xdist libwacom-devel cairo-devel gtk4-devel glib2-devel mtdev-devel diffutils wayland-protocols-devel black clang clang-tools-extra jq rpmdevtools valgrind systemd-udev qemu-img qemu-system-x86-core qemu-system-aarch64-core jq python3-click python3-rich virtme-ng'
-  DEBIAN_PACKAGES:  'git gcc g++ pkg-config meson check libudev-dev libevdev-dev doxygen graphviz python3-sphinx python3-recommonmark python3-sphinx-rtd-theme python3-pytest-xdist libwacom-dev libcairo2-dev libgtk-3-dev libglib2.0-dev libmtdev-dev curl'
-  UBUNTU_PACKAGES:  'git gcc g++ pkg-config meson check libudev-dev libevdev-dev doxygen graphviz python3-sphinx python3-recommonmark python3-sphinx-rtd-theme python3-pytest-xdist libwacom-dev libcairo2-dev libgtk-3-dev libglib2.0-dev libmtdev-dev'
-  ARCH_PACKAGES:    'git gcc pkgconfig meson check libsystemd libevdev python-pytest-xdist libwacom gtk4 mtdev diffutils'
-  ALPINE_PACKAGES:  'git gcc build-base pkgconfig meson check-dev eudev-dev libevdev-dev libwacom-dev cairo-dev gtk4.0-dev mtdev-dev bash'
+  FEDORA_PACKAGES:  'git-core gcc gcc-c++ pkgconf-pkg-config meson check-devel libudev-devel libevdev-devel doxygen graphviz python3-sphinx python3-recommonmark python3-sphinx_rtd_theme python3-pytest-xdist libwacom-devel cairo-devel gtk4-devel glib2-devel mtdev-devel diffutils wayland-protocols-devel black clang clang-tools-extra jq rpmdevtools valgrind systemd-udev qemu-img qemu-system-x86-core qemu-system-aarch64-core jq python3-click python3-rich virtme-ng lua-devel'
+  DEBIAN_PACKAGES:  'git gcc g++ pkg-config meson check libudev-dev libevdev-dev doxygen graphviz python3-sphinx python3-recommonmark python3-sphinx-rtd-theme python3-pytest-xdist libwacom-dev libcairo2-dev libgtk-3-dev libglib2.0-dev libmtdev-dev curl lua5.4-dev'
+  UBUNTU_PACKAGES:  'git gcc g++ pkg-config meson check libudev-dev libevdev-dev doxygen graphviz python3-sphinx python3-recommonmark python3-sphinx-rtd-theme python3-pytest-xdist libwacom-dev libcairo2-dev libgtk-3-dev libglib2.0-dev libmtdev-dev lua5.4-dev'
+  ARCH_PACKAGES:    'git gcc pkgconfig meson check libsystemd libevdev python-pytest-xdist libwacom gtk4 mtdev diffutils lua'
+  ALPINE_PACKAGES:  'git gcc build-base pkgconfig meson check-dev eudev-dev libevdev-dev libwacom-dev cairo-dev gtk4.0-dev mtdev-dev bash lua5.4-dev'
   FREEBSD_PACKAGES: 'git pkgconf meson libepoll-shim libudev-devd libevdev libwacom gtk3 libmtdev bash wayland'
   ############################ end of package lists #############################
 
@@ -110,12 +110,12 @@ variables:
   # changing these will force rebuilding the associated image
   # Note: these tags have no meaning and are not tied to a particular
   # libinput version
-  FEDORA_TAG:  '2025-05-19.0'
-  DEBIAN_TAG:  '2025-05-19.0'
-  UBUNTU_TAG:  '2025-05-19.0'
-  ARCH_TAG:    '2025-05-19.0'
-  ALPINE_TAG:  '2025-05-19.0'
-  FREEBSD_TAG: '2025-05-19.0'
+  FEDORA_TAG:  '2025-11-17.0'
+  DEBIAN_TAG:  '2025-11-17.0'
+  UBUNTU_TAG:  '2025-11-17.0'
+  ARCH_TAG:    '2025-11-17.0'
+  ALPINE_TAG:  '2025-11-17.0'
+  FREEBSD_TAG: '2025-11-17.0'
 
   FDO_UPSTREAM_REPO: libinput/libinput
 
@@ -258,7 +258,7 @@ pre-commit-hooks:
     - python3 -m venv venv
     - source venv/bin/activate
     - pip3 install pre-commit
-    - pre-commit run --all-files || true
+    - pre-commit run --all-files
     - git diff --exit-code || (echo "ERROR - Code style errors found, please fix" && false)
 
 #################################################################
@@ -267,18 +267,6 @@ pre-commit-hooks:
 #                                                               #
 #################################################################
 
-fedora:41@container-prep:
-  extends:
-    - .fdo.container-build@fedora
-    - .policy
-    - .fdo-runner-tags
-  stage: prep
-  variables:
-    GIT_STRATEGY: none
-    FDO_DISTRIBUTION_VERSION: '41'
-    FDO_DISTRIBUTION_PACKAGES: $FEDORA_PACKAGES
-    FDO_DISTRIBUTION_TAG: $FEDORA_TAG
-
 fedora:42@container-prep:
   extends:
     - .fdo.container-build@fedora
@@ -291,6 +279,18 @@ fedora:42@container-prep:
     FDO_DISTRIBUTION_PACKAGES: $FEDORA_PACKAGES
     FDO_DISTRIBUTION_TAG: $FEDORA_TAG
 
+fedora:43@container-prep:
+  extends:
+    - .fdo.container-build@fedora
+    - .policy
+    - .fdo-runner-tags
+  stage: prep
+  variables:
+    GIT_STRATEGY: none
+    FDO_DISTRIBUTION_VERSION: '43'
+    FDO_DISTRIBUTION_PACKAGES: $FEDORA_PACKAGES
+    FDO_DISTRIBUTION_TAG: $FEDORA_TAG
+
 debian:stable@container-prep:
   extends:
     - .fdo.container-build@debian
@@ -303,7 +303,7 @@ debian:stable@container-prep:
     FDO_DISTRIBUTION_PACKAGES: $DEBIAN_PACKAGES
     FDO_DISTRIBUTION_TAG: $DEBIAN_TAG
 
-ubuntu:25.04@container-prep:
+ubuntu:25.10@container-prep:
   extends:
     - .fdo.container-build@ubuntu
     - .policy
@@ -311,7 +311,7 @@ ubuntu:25.04@container-prep:
   stage: prep
   variables:
     GIT_STRATEGY: none
-    FDO_DISTRIBUTION_VERSION: '25.04'
+    FDO_DISTRIBUTION_VERSION: '25.10'
     FDO_DISTRIBUTION_PACKAGES: $UBUNTU_PACKAGES
     FDO_DISTRIBUTION_TAG: $UBUNTU_TAG
 
@@ -386,16 +386,6 @@ freebsd:14.2@container-prep:
   only:
     - schedules
 
-fedora:41@container-clean:
-  extends:
-    - .policy
-    - .container-clean
-  variables:
-    GIT_STRATEGY: none
-    CURRENT_CONTAINER_IMAGE: $CI_REGISTRY_IMAGE/fedora/$FDO_DISTRIBUTION_VERSION:$FDO_DISTRIBUTION_TAG
-    FDO_DISTRIBUTION_VERSION: '41'
-    FDO_DISTRIBUTION_TAG: $FEDORA_TAG
-
 fedora:42@container-clean:
   extends:
     - .policy
@@ -406,6 +396,16 @@ fedora:42@container-clean:
     FDO_DISTRIBUTION_VERSION: '42'
     FDO_DISTRIBUTION_TAG: $FEDORA_TAG
 
+fedora:43@container-clean:
+  extends:
+    - .policy
+    - .container-clean
+  variables:
+    GIT_STRATEGY: none
+    CURRENT_CONTAINER_IMAGE: $CI_REGISTRY_IMAGE/fedora/$FDO_DISTRIBUTION_VERSION:$FDO_DISTRIBUTION_TAG
+    FDO_DISTRIBUTION_VERSION: '43'
+    FDO_DISTRIBUTION_TAG: $FEDORA_TAG
+
 debian:stable@container-clean:
   extends:
     - .policy
@@ -416,14 +416,14 @@ debian:stable@container-clean:
     FDO_DISTRIBUTION_VERSION: 'stable'
     FDO_DISTRIBUTION_TAG: $DEBIAN_TAG
 
-ubuntu:25.04@container-clean:
+ubuntu:25.10@container-clean:
   extends:
     - .policy
     - .container-clean
   variables:
     GIT_STRATEGY: none
     CURRENT_CONTAINER_IMAGE: $CI_REGISTRY_IMAGE/ubuntu/$FDO_DISTRIBUTION_VERSION:$FDO_DISTRIBUTION_TAG
-    FDO_DISTRIBUTION_VERSION: '25.04'
+    FDO_DISTRIBUTION_VERSION: '25.10'
     FDO_DISTRIBUTION_TAG: $UBUNTU_TAG
 
 arch:rolling@container-clean:
@@ -577,20 +577,20 @@ freebsd:14.2@container-clean:
     - export MESON_TEST_ARGS="$MESON_TEST_ARGS $SUITES"
 
 
-.fedora:42@test-suite-vm:
+.fedora:43@test-suite-vm:
   extends:
     - .fdo.distribution-image@fedora
     - .test-suite-vm
   variables:
-    FDO_DISTRIBUTION_VERSION: 42
+    FDO_DISTRIBUTION_VERSION: 43
     FDO_DISTRIBUTION_TAG: $FEDORA_TAG
   needs:
-    - "fedora:42@container-prep"
+    - "fedora:43@container-prep"
 
 
 vm-touchpad:
   extends:
-    - .fedora:42@test-suite-vm
+    - .fedora:43@test-suite-vm
   variables:
     SUITE_NAMES: 'touchpad'
 
@@ -603,7 +603,7 @@ vm-touchpad-no-libwacom:
 
 vm-touchpad_palm:
   extends:
-    - .fedora:42@test-suite-vm
+    - .fedora:43@test-suite-vm
   variables:
     SUITE_NAMES: 'touchpad_palm'
 
@@ -616,7 +616,7 @@ vm-touchpad_palm-no-libwacom:
 
 vm-touchpad_dwt:
   extends:
-    - .fedora:42@test-suite-vm
+    - .fedora:43@test-suite-vm
   variables:
     SUITE_NAMES: 'touchpad_dwt'
 
@@ -629,7 +629,7 @@ vm-touchpad_dwt-no-libwacom:
 
 vm-tap:
   extends:
-    - .fedora:42@test-suite-vm
+    - .fedora:43@test-suite-vm
   variables:
     SUITE_NAMES: 'touchpad_tap'
 
@@ -642,7 +642,7 @@ vm-tap-no-libwacom:
 
 vm-tap-drag:
   extends:
-    - .fedora:42@test-suite-vm
+    - .fedora:43@test-suite-vm
   variables:
     SUITE_NAMES: 'touchpad_tap_drag'
 
@@ -655,7 +655,7 @@ vm-tap-drag-no-libwacom:
 
 vm-tap-palm:
   extends:
-    - .fedora:42@test-suite-vm
+    - .fedora:43@test-suite-vm
   variables:
     SUITE_NAMES: 'touchpad_tap_palm'
 
@@ -668,7 +668,7 @@ vm-tap-palm-no-libwacom:
 
 vm-touchpad-buttons:
   extends:
-    - .fedora:42@test-suite-vm
+    - .fedora:43@test-suite-vm
   variables:
     SUITE_NAMES: 'touchpad_buttons'
 
@@ -681,7 +681,7 @@ vm-touchpad-buttons-no-libwacom:
 
 vm-tablet:
   extends:
-    - .fedora:42@test-suite-vm
+    - .fedora:43@test-suite-vm
   variables:
     SUITE_NAMES: 'tablet'
 
@@ -694,7 +694,7 @@ vm-tablet-no-libwacom:
 
 vm-tablet_left_handed:
   extends:
-    - .fedora:42@test-suite-vm
+    - .fedora:43@test-suite-vm
   variables:
     SUITE_NAMES: 'tablet_left_handed'
 
@@ -705,9 +705,35 @@ vm-tablet_left_handed-no-libwacom:
   variables:
     MESON_ARGS: '-Dlibwacom=false'
 
+vm-tablet_proximity_tip:
+  extends:
+    - .fedora:43@test-suite-vm
+  variables:
+    SUITE_NAMES: 'tablet_proximity tablet_tip'
+
+vm-tablet_proximity_tip-no-libwacom:
+  extends:
+    - vm-tablet_proximity_tip
+  stage: test-suite-no-libwacom
+  variables:
+    MESON_ARGS: '-Dlibwacom=false'
+
+vm-tablet_eraser:
+  extends:
+    - .fedora:43@test-suite-vm
+  variables:
+    SUITE_NAMES: 'tablet_eraser'
+
+vm-tablet_eraser-no-libwacom:
+  extends:
+    - vm-tablet_eraser
+  stage: test-suite-no-libwacom
+  variables:
+    MESON_ARGS: '-Dlibwacom=false'
+
 vm-gestures:
   extends:
-    - .fedora:42@test-suite-vm
+    - .fedora:43@test-suite-vm
   variables:
     SUITE_NAMES: 'gestures'
 
@@ -720,7 +746,7 @@ vm-gestures-no-libwacom:
 
 vm-backends:
   extends:
-    - .fedora:42@test-suite-vm
+    - .fedora:43@test-suite-vm
   variables:
     SUITE_NAMES: 'path udev'
 
@@ -733,7 +759,7 @@ vm-backends-no-libwacom:
 
 vm-misc:
   extends:
-    - .fedora:42@test-suite-vm
+    - .fedora:43@test-suite-vm
   variables:
     SUITE_NAMES: 'log misc quirks device'
 
@@ -746,7 +772,7 @@ vm-misc-no-libwacom:
 
 vm-other devices:
   extends:
-    - .fedora:42@test-suite-vm
+    - .fedora:43@test-suite-vm
   variables:
     SUITE_NAMES: 'keyboard pad switch trackball trackpoint totem touch'
 
@@ -759,7 +785,7 @@ vm-other devices-no-libwacom:
 
 vm-pointer:
   extends:
-    - .fedora:42@test-suite-vm
+    - .fedora:43@test-suite-vm
   variables:
     SUITE_NAMES: 'pointer'
 
@@ -770,6 +796,19 @@ vm-pointer-no-libwacom:
   variables:
     MESON_ARGS: '-Dlibwacom=false'
 
+vm-lua:
+  extends:
+    - .fedora:43@test-suite-vm
+  variables:
+    SUITE_NAMES: 'lua'
+
+vm-lua-no-libwacom:
+  extends:
+    - vm-lua
+  stage: test-suite-no-libwacom
+  variables:
+    MESON_ARGS: '-Dlibwacom=false'
+
 
 vm-valgrind-touchpad:
   stage: valgrind
@@ -888,6 +927,32 @@ vm-valgrind-tablet_left_handed:
   rules:
     - if: $GITLAB_USER_LOGIN != "marge-bot"
 
+vm-valgrind-tablet_proximity_tip:
+  stage: valgrind
+  extends:
+    - vm-tablet_proximity_tip
+    - .policy-retry-on-failure
+  variables:
+    MESON_TEST_ARGS: '--setup=valgrind'
+    LITEST_JOBS: 0
+  retry:
+    max: 2
+  rules:
+    - if: $GITLAB_USER_LOGIN != "marge-bot"
+
+vm-valgrind-tablet_eraser:
+  stage: valgrind
+  extends:
+    - vm-tablet_eraser
+    - .policy-retry-on-failure
+  variables:
+    MESON_TEST_ARGS: '--setup=valgrind'
+    LITEST_JOBS: 0
+  retry:
+    max: 2
+  rules:
+    - if: $GITLAB_USER_LOGIN != "marge-bot"
+
 vm-valgrind-gestures:
   stage: valgrind
   extends:
@@ -953,18 +1018,32 @@ vm-valgrind-pointer:
   rules:
     - if: $GITLAB_USER_LOGIN != "marge-bot"
 
+vm-valgrind-lua:
+  stage: valgrind
+  extends:
+    - vm-lua
+    - .policy-retry-on-failure
+  variables:
+    MESON_TEST_ARGS: '--setup=valgrind'
+    LITEST_JOBS: 0
+  retry:
+    max: 2
+  rules:
+    - if: $GITLAB_USER_LOGIN != "marge-bot"
+
+
 
 .fedora-build@template:
   extends:
     - .fdo.distribution-image@fedora
     - .build@template
   variables:
-    FDO_DISTRIBUTION_VERSION: '42'
+    FDO_DISTRIBUTION_VERSION: '43'
     FDO_DISTRIBUTION_TAG: $FEDORA_TAG
   needs:
-    - "fedora:42@container-prep"
+    - "fedora:43@container-prep"
 
-default-build-release@fedora:42:
+default-build-release@fedora:43:
   stage: distro
   extends:
     - .fedora-build@template
@@ -972,7 +1051,7 @@ default-build-release@fedora:42:
     MESON_ARGS: "-Dbuildtype=release"
     CFLAGS: "-Werror"
 
-clang-tidy@fedora:42:
+clang-tidy@fedora:43:
   extends:
     - .fedora-build@template
   variables:
@@ -987,13 +1066,13 @@ clang-tidy@fedora:42:
 # run them on one image, they shouldn't fail on one distro
 # when they succeed on another.
 
-build-no-libwacom@fedora:42:
+build-no-libwacom@fedora:43:
   extends:
     - .fedora-build@template
   variables:
     MESON_ARGS: "-Dlibwacom=false"
 
-build-no-libwacom-nodeps@fedora:42:
+build-no-libwacom-nodeps@fedora:43:
   extends:
     - .fedora-build@template
   variables:
@@ -1001,13 +1080,13 @@ build-no-libwacom-nodeps@fedora:42:
   before_script:
     - dnf remove -y libwacom libwacom-devel
 
-build-no-mtdev@fedora:42:
+build-no-mtdev@fedora:43:
   extends:
     - .fedora-build@template
   variables:
     MESON_ARGS: "-Dmtdev=false"
 
-build-no-mtdev-nodeps@fedora:42:
+build-no-mtdev-nodeps@fedora:43:
   extends:
     - .fedora-build@template
   variables:
@@ -1015,13 +1094,27 @@ build-no-mtdev-nodeps@fedora:42:
   before_script:
     - dnf remove -y mtdev mtdev-devel
 
-build-docs@fedora:42:
+build-no-lua@fedora:43:
+  extends:
+    - .fedora-build@template
+  variables:
+    MESON_ARGS: "-Dlua-plugins=disabled"
+
+build-no-lua-nodeps@fedora:43:
+  extends:
+    - .fedora-build@template
+  variables:
+    MESON_ARGS: "-Dlua-plugins=disabled"
+  before_script:
+    - dnf remove -y lua lua-devel
+
+build-docs@fedora:43:
   extends:
     - .fedora-build@template
   variables:
     MESON_ARGS: "-Ddocumentation=true"
 
-build-no-docs-nodeps@fedora:42:
+build-no-docs-nodeps@fedora:43:
   extends:
     - .fedora-build@template
   variables:
@@ -1029,13 +1122,13 @@ build-no-docs-nodeps@fedora:42:
   before_script:
     - dnf remove -y doxygen graphviz
 
-build-no-debuggui@fedora:42:
+build-no-debuggui@fedora:43:
   extends:
     - .fedora-build@template
   variables:
     MESON_ARGS: "-Ddebug-gui=false"
 
-build-no-debuggui-nodeps@fedora:42:
+build-no-debuggui-nodeps@fedora:43:
   extends:
     - .fedora-build@template
   variables:
@@ -1043,13 +1136,13 @@ build-no-debuggui-nodeps@fedora:42:
   before_script:
     - dnf remove -y gtk3-devel gtk4-devel
 
-build-no-tests@fedora:42:
+build-no-tests@fedora:43:
   extends:
     - .fedora-build@template
   variables:
     MESON_ARGS: "-Dtests=false"
 
-build-no-tests-nodeps@fedora:42:
+build-no-tests-nodeps@fedora:43:
   extends:
     - .fedora-build@template
   variables:
@@ -1057,7 +1150,7 @@ build-no-tests-nodeps@fedora:42:
   before_script:
     - dnf remove -y check-devel
 
-valgrind@fedora:42:
+valgrind@fedora:43:
   extends:
     - .fedora-build@template
   variables:
@@ -1065,7 +1158,7 @@ valgrind@fedora:42:
 
 # Python checks, only run on Fedora
 
-usr-bin-env-python@fedora:42:
+usr-bin-env-python@fedora:43:
   extends:
     - .fedora-build@template
   script:
@@ -1093,6 +1186,9 @@ check-test-suites:
         libinput-test-suite-touchpad_buttons
         libinput-test-suite-tablet
         libinput-test-suite-tablet_left_handed
+        libinput-test-suite-tablet_proximity
+        libinput-test-suite-tablet_tip
+        libinput-test-suite-tablet_eraser
         libinput-test-suite-gestures
         libinput-test-suite-path
         libinput-test-suite-udev
@@ -1108,6 +1204,7 @@ check-test-suites:
         libinput-test-suite-totem
         libinput-test-suite-touch
         libinput-test-suite-pointer
+        libinput-test-suite-lua
       EOF
     - sort -o ci-testsuites ci-testsuites
     - diff -u8 -w ci-testsuites meson-testsuites || (echo "Some test suites are not run in the CI" && false)
@@ -1172,18 +1269,6 @@ coverity:
 #                                                               #
 #################################################################
 
-fedora:41@default-build:
-  stage: distro
-  extends:
-    - .build@template
-    - .fdo.distribution-image@fedora
-  variables:
-    FDO_DISTRIBUTION_VERSION: '41'
-    FDO_DISTRIBUTION_TAG: $FEDORA_TAG
-  needs:
-    - "fedora:41@container-prep"
-
-
 fedora:42@default-build:
   stage: distro
   extends:
@@ -1196,6 +1281,18 @@ fedora:42@default-build:
     - "fedora:42@container-prep"
 
 
+fedora:43@default-build:
+  stage: distro
+  extends:
+    - .build@template
+    - .fdo.distribution-image@fedora
+  variables:
+    FDO_DISTRIBUTION_VERSION: '43'
+    FDO_DISTRIBUTION_TAG: $FEDORA_TAG
+  needs:
+    - "fedora:43@container-prep"
+
+
 debian:stable@default-build:
   stage: distro
   extends:
@@ -1208,16 +1305,16 @@ debian:stable@default-build:
     - "debian:stable@container-prep"
 
 
-ubuntu:25.04@default-build:
+ubuntu:25.10@default-build:
   stage: distro
   extends:
     - .build@template
     - .fdo.distribution-image@ubuntu
   variables:
-    FDO_DISTRIBUTION_VERSION: '25.04'
+    FDO_DISTRIBUTION_VERSION: '25.10'
     FDO_DISTRIBUTION_TAG: $UBUNTU_TAG
   needs:
-    - "ubuntu:25.04@container-prep"
+    - "ubuntu:25.10@container-prep"
 
 
 arch:rolling@default-build:
@@ -1267,27 +1364,6 @@ freebsd:14.2@default-build:
 #                                                               #
 #################################################################
 
-#
-# Verify that the merge request has the allow-collaboration checkbox ticked
-#
-
-check-merge-request:
-  extends:
-    - .fdo.ci-fairy
-    - .policy
-    - .fdo-runner-tags
-  stage: deploy
-  script:
-    - ci-fairy check-merge-request --require-allow-collaboration --junit-xml=results.xml
-  artifacts:
-    when: on_failure
-    reports:
-      junit: results.xml
-  allow_failure: true
-  rules:
-    - if: $CI_PIPELINE_SOURCE == 'merge_request_event'
-
-
 build rpm:
   extends:
     - .fdo.distribution-image@fedora
@@ -1295,10 +1371,10 @@ build rpm:
     - .fdo-runner-tags
   stage: deploy
   variables:
-    FDO_DISTRIBUTION_VERSION: '42'
+    FDO_DISTRIBUTION_VERSION: '43'
     FDO_DISTRIBUTION_TAG: $FEDORA_TAG
   needs:
-    - "fedora:42@container-prep"
+    - "fedora:43@container-prep"
   script:
     - meson "$MESON_BUILDDIR"
     - VERSION=$(meson introspect "$MESON_BUILDDIR" --projectinfo | jq -r .version)
@@ -1316,14 +1392,12 @@ build rpm:
 wayland-web:
   stage: deploy
   trigger: wayland/wayland.freedesktop.org
-  except:
-    refs:
-      - schedules
   variables:
     MESON_ARGS: '-Ddocumentation=true -Ddebug-gui=false -Dlibwacom=false -Dtests=false'
     MESON_BUILDDIR: 'builddir'
-  only:
-    refs:
-      - main
-    variables:
-      - $CI_PROJECT_PATH == "libinput/libinput"
+  rules:
+    - if: '$CI_PIPELINE_SOURCE == "schedule"'
+      when: never
+    - if: '$CI_COMMIT_BRANCH == "main" && $GITLAB_USER_LOGIN != "marge-bot" && $CI_PROJECT_PATH == $FDO_UPSTREAM_REPO'
+      when: on_success
+    - when: never

.gitlab-ci/ci.template

@@ -246,7 +246,7 @@ pre-commit-hooks:
     - python3 -m venv venv
     - source venv/bin/activate
     - pip3 install pre-commit
-    - pre-commit run --all-files || true
+    - pre-commit run --all-files
     - git diff --exit-code || (echo "ERROR - Code style errors found, please fix" && false)
 
 #################################################################
@@ -492,6 +492,7 @@ vm-valgrind-{{suite.name}}:
     - if: $GITLAB_USER_LOGIN != "marge-bot"
 
 {% endfor %}
+
 {% endfor %}{# for if distro.use_for_qemu_tests #}
 
 {% for distro in distributions if distro.use_for_custom_build_tests %}
@@ -557,6 +558,20 @@ build-no-mtdev-nodeps@{{distro.name}}:{{version}}:
   before_script:
     - dnf remove -y mtdev mtdev-devel
 
+build-no-lua@{{distro.name}}:{{version}}:
+  extends:
+    - .{{distro.name}}-build@template
+  variables:
+    MESON_ARGS: "-Dlua-plugins=disabled"
+
+build-no-lua-nodeps@{{distro.name}}:{{version}}:
+  extends:
+    - .{{distro.name}}-build@template
+  variables:
+    MESON_ARGS: "-Dlua-plugins=disabled"
+  before_script:
+    - dnf remove -y lua lua-devel
+
 build-docs@{{distro.name}}:{{version}}:
   extends:
     - .{{distro.name}}-build@template
@@ -746,27 +761,6 @@ coverity:
 #                                                               #
 #################################################################
 
-#
-# Verify that the merge request has the allow-collaboration checkbox ticked
-#
-
-check-merge-request:
-  extends:
-    - .fdo.ci-fairy
-    - .policy
-    - .fdo-runner-tags
-  stage: deploy
-  script:
-    - ci-fairy check-merge-request --require-allow-collaboration --junit-xml=results.xml
-  artifacts:
-    when: on_failure
-    reports:
-      junit: results.xml
-  allow_failure: true
-  rules:
-    - if: $CI_PIPELINE_SOURCE == 'merge_request_event'
-
-
 {% for distro in distributions if distro.name == "fedora" %}
 {% set version = "{}".format(distro.versions|last()) %}
 build rpm:
@@ -798,14 +792,12 @@ build rpm:
 wayland-web:
   stage: deploy
   trigger: wayland/wayland.freedesktop.org
-  except:
-    refs:
-      - schedules
   variables:
     MESON_ARGS: '-Ddocumentation=true -Ddebug-gui=false -Dlibwacom=false -Dtests=false'
     MESON_BUILDDIR: 'builddir'
-  only:
-    refs:
-      - main
-    variables:
-      - $CI_PROJECT_PATH == "libinput/libinput"
+  rules:
+    - if: '$CI_PIPELINE_SOURCE == "schedule"'
+      when: never
+    - if: '$CI_COMMIT_BRANCH == "main" && $GITLAB_USER_LOGIN != "marge-bot" && $CI_PROJECT_PATH == $FDO_UPSTREAM_REPO'
+      when: on_success
+    - when: never

.gitlab-ci/config.yml

@@ -3,14 +3,14 @@
 #
 
 # We're happy to rebuild all containers when one changes.
-.default_tag: &default_tag '2025-05-19.0'
+.default_tag: &default_tag '2025-11-17.0'
 
 distributions:
   - name: fedora
     tag: *default_tag
     versions:
-      - '41'
       - '42'
+      - '43'
     use_for_custom_build_tests: true
     use_for_qemu_tests: true
     packages:
@@ -50,6 +50,7 @@ distributions:
       - python3-click
       - python3-rich
       - virtme-ng
+      - lua-devel
   - name: debian
     tag: *default_tag
     versions:
@@ -75,10 +76,11 @@ distributions:
       - libglib2.0-dev
       - libmtdev-dev
       - curl            # for the coverity job
+      - lua5.4-dev
   - name: ubuntu
     tag: *default_tag
     versions:
-      - '25.04'
+      - '25.10'
     packages:
       - git
       - gcc
@@ -99,6 +101,7 @@ distributions:
       - libgtk-3-dev
       - libglib2.0-dev
       - libmtdev-dev
+      - lua5.4-dev
   - name: arch
     tag: *default_tag
     versions:
@@ -116,6 +119,7 @@ distributions:
       - gtk4
       - mtdev
       - diffutils
+      - lua
     build:
       extra_variables:
         - "MESON_ARGS: '-Ddocumentation=false'" # python-recommonmark is no longer in the repos
@@ -136,6 +140,7 @@ distributions:
       - gtk4.0-dev
       - mtdev-dev
       - bash
+      - lua5.4-dev
     build:
       extra_variables:
         - "MESON_ARGS: '-Ddocumentation=false' # alpine does not have python-recommonmark"
@@ -195,6 +200,13 @@ test_suites:
   - name: tablet_left_handed
     suites:
       - tablet_left_handed
+  - name: tablet_proximity_tip
+    suites:
+      - tablet_proximity
+      - tablet_tip
+  - name: tablet_eraser
+    suites:
+      - tablet_eraser
   - name: gestures
     suites:
       - gestures
@@ -220,6 +232,9 @@ test_suites:
   - name: pointer
     suites:
       - pointer
+  - name: lua
+    suites:
+      - lua
 
 vng:
   kernel: https://gitlab.freedesktop.org/api/v4/projects/libevdev%2Fhid-tools/packages/generic/kernel-x86_64/v6.14/bzImage

.gitlab-ci/libinput.spec.in

@@ -100,6 +100,7 @@ intended to be run by users.
 %files utils
 %{_libexecdir}/libinput/libinput-debug-gui
 %{_libexecdir}/libinput/libinput-debug-tablet
+%{_libexecdir}/libinput/libinput-debug-tablet-pad
 %{_libexecdir}/libinput/libinput-list-kernel-devices
 %{_libexecdir}/libinput/libinput-measure
 %{_libexecdir}/libinput/libinput-measure-fuzz
@@ -117,6 +118,7 @@ intended to be run by users.
 %{_libexecdir}/libinput/libinput-analyze-touch-down-state
 %{_mandir}/man1/libinput-debug-gui.1*
 %{_mandir}/man1/libinput-debug-tablet.1*
+%{_mandir}/man1/libinput-debug-tablet-pad.1*
 %{_mandir}/man1/libinput-list-kernel-devices.1*
 %{_mandir}/man1/libinput-measure.1*
 %{_mandir}/man1/libinput-measure-fuzz.1*

.pre-commit-config.yaml

@@ -9,7 +9,7 @@ repos:
 - repo: https://github.com/astral-sh/ruff-pre-commit
   rev: v0.12.2
   hooks:
-  - id: ruff
+  - id: ruff-check
     args: ['--ignore=E741,E501', '--extend-exclude=subprojects', '.']
   - id: ruff-format
     args: ['--check', '--diff']

.triage-policies.yml

@@ -183,6 +183,16 @@ resource_rules:
             For a detailed explanation on the how and why of this process please see
             the [Closed Issues wiki page](https://gitlab.freedesktop.org/libinput/libinput/-/wikis/Closed-Issues).
           status: "close"
+      - name: "Re-close bug for reopening"
+        conditions:
+          labels:
+            - "bugbot::re-close"
+        actions:
+          remove_labels:
+            - "bugbot::re-close"
+          comment: |
+            I'm temporarily closing this bug again. This is not a final close, see my comments above for the open/close process.
+          status: "close"
       - *udev_hid_bpf
       - *libinput_record
       - *hid_recorder

completion/zsh/_libinput

@@ -93,6 +93,9 @@ __all_seats()
 		+ '(natural-scrolling)' \
 		'--enable-natural-scrolling[Enable natural scrolling]' \
 		'--disable-natural-scrolling[Disable natural scrolling]' \
+		+ '(plugins)' \
+		'--enable-plugins[Enable plugins]' \
+		'--disable-plugins[Disable plugins]' \
 		+ '(tap-to-click)' \
 		'--enable-tap[Enable tap-to-click]' \
 		'--disable-tap[Disable tap-to-click]'

doc/user/absolute-coordinate-ranges.rst

@@ -40,11 +40,6 @@ To fix the touchpad you need to:
 
 Detailed explanations are below.
 
-.. note:: ``libinput measure touchpad-size`` was introduced in libinput
-	  1.16. For earlier versions, use `libevdev <http://freedesktop.org/wiki/Software/libevdev/>`_'s
-	  ``touchpad-edge-detector`` tool.
-
-
 The ``libinput measure touchpad-size`` tool is an interactive tool. It must
 be called with the physical dimensions of the touchpad in mm. In the example
 below, we use 100mm wide and 55mm high. The tool will find the touchpad device

doc/user/configuration.rst

@@ -6,15 +6,21 @@ Configuration options
 
 Below is a list of configurable options exposed to the users.
 
+.. contents::
+   :depth: 1
+   :local:
+
+
 .. hint:: Not all configuration options are available on all devices. Use
 	  :ref:`libinput list-devices <libinput-list-devices>` to show the
 	  configuration options for local devices.
 
 libinput's configuration interface is available to the caller only, not
-directly to the user. Thus is is the responsibility of the caller to expose
+directly to the user. Thus it is the responsibility of the caller to expose
 the various options and how these options are exposed. For example, the
-xf86-input-libinput driver exposes the options through X Input device
-properties and xorg.conf.d options. See the `libinput(4)
+`xf86-input-libinput driver <https://gitlab.freedesktop.org/xorg/driver/xf86-input-libinput/>`_
+exposes the options through X Input device properties and `xorg.conf.d
+<https://linux.die.net/man/5/xorg.conf.d>`_ options.  See the `libinput(4)
 <https://www.mankier.com/4/libinput>`_ man page for more details.
 
 
@@ -205,6 +211,18 @@ before the maximum hardware-supported pressure is reached.
 
 See :ref:`tablet-pressure-range` for more info.
 
+.. _config-tablet-eraser-buttons:
+
+------------------------------------------------------------------------------
+Tablet tool eraser buttons
+------------------------------------------------------------------------------
+
+On many contemporary :ref:`Tablet tools <tablet-tools>` one button is hardcoded
+in firmware to emulate an eraser. This button can be remapped to provide
+a normal stylus button instead.
+
+See :ref:`tablet-eraser-button` for more info.
+
 ------------------------------------------------------------------------------
 Area configuration
 ------------------------------------------------------------------------------

doc/user/contributing.rst

@@ -181,7 +181,7 @@ sufficient to make some of the more confusing steps obvious.
   with your username). git will call this repository ``gitlab``. ::
 
     cd /path/to/libinput.git
-    git remote add gitlab git@gitlab.freedesktop.org:USERNAME/libinput.git
+    git remote add gitlab git@ssh.gitlab.freedesktop.org:USERNAME/libinput.git
     git fetch gitlab
 
 - Create a new branch and commit your changes to that branch. ::

doc/user/device-quirks.rst

@@ -148,6 +148,9 @@ ModelBouncingKeys
 ModelSynapticsSerialTouchpad
     Reserved for touchpads made by Synaptics on the serial bus
 ModelPressurePad
+    .. warning:: This quirk is no longer in use. Use
+                 ``AttrInputProp=+INPUT_PROP_PRESSUREPAD`` instead.
+
     Unlike in traditional touchpads, whose pressure value equals contact size,
     on pressure pads pressure is a real physical axis.
     Indicates that the device is a pressure pad.
@@ -155,6 +158,10 @@ ModelTouchpadPhantomClicks
     Some laptops are prone to registering touchpad clicks when the case is
     bent. Indicates that clicks should be ignored if no fingers are on the
     touchpad.
+ModelScrollOnMiddleClick
+    Some mice can generate unwanted high-resolution scroll events when the wheel
+    is pressed. Increases the scroll threshold required to start scrolling to
+    avoid accidentally scrolling when middle clicking.
 AttrSizeHint=NxM, AttrResolutionHint=N
     Hints at the width x height of the device in mm, or the resolution
     of the x/y axis in units/mm. These may only be used where they apply to
@@ -195,6 +202,9 @@ AttrInputProp=+INPUT_PROP_BUTTONPAD;-INPUT_PROP_POINTER;
     Enables or disables the evdev input property on the device. The prefix
     for each entry is either '+' (enable) or '-' (disable). Entries may be
     a named input property or the hexadecimal value of that property.
+
+    The most common use of this is ``AttrInputProp=+INPUT_PROP_PRESSUREPAD``
+    which marks a touchpad as a :ref:`forcepad or pressurepad <touchpads_buttons_forcepads>`.
 AttrPointingStickIntegration=internal|external
     Indicates the integration of the pointing stick. This is a string enum.
     Only needed for external pointing sticks. These are rare.

doc/user/dot/libinput-contexts.gv

@@ -0,0 +1,36 @@
+digraph stack
+{
+  compound=true;
+  splines=line;
+  rankdir="LR";
+  node [
+    shape="box";
+  ]
+
+  subgraph cluster_2 {
+	  label="Kernel";
+	  event0 [label="/dev/input/event0"];
+	  event1 [label="/dev/input/event1"];
+  }
+
+  subgraph cluster_0 {
+	  label="Compositor process";
+	  libinput [label="libinput context 1"];
+  }
+
+  subgraph cluster_1 {
+	  label="libinput debug-events";
+	  libinput2 [label="libinput context 2"];
+  }
+
+  stdout;
+
+  client [label="Wayland client"];
+
+  event0:e -> libinput:w;
+  event1:e -> libinput:w;
+  event0:e -> libinput2:w;
+  event1:e -> libinput2:w;
+  libinput -> client [ltail=cluster_0 label="Wayland protocol"];
+  libinput2 -> stdout [ltail=cluster_1];
+}

doc/user/dot/plugin-stack.gv

@@ -0,0 +1,31 @@
+digraph stack
+{
+  compound=true;
+  rankdir="LR";
+  node [
+    shape="box";
+  ]
+
+  subgraph cluster_2 {
+	  label="Kernel";
+	  event0 [label="/dev/input/event0"]
+  }
+
+  subgraph cluster_1 {
+	  label="libinput";
+    subgraph cluster_0 {
+	    label="Plugin pipeline";
+	    p1 [label="00-foo.lua"];
+	    p2 [label="10-bar.lua"];
+    }
+	  libinput [label="libinput core"];
+  }
+
+
+  compositor [label="Compositor"];
+
+  event0 -> p1;
+  p1 -> p2;
+  p2 -> libinput;
+  libinput -> compositor [ltail=cluster_1 label="libinput API"];
+}

doc/user/faqs.rst

@@ -348,10 +348,14 @@ compositor. This indicates a misunderstanding of how libinput works:
 libinput is a library that converts kernel events into libinput events, much
 like ``sed`` reads data in, modifies it, and provides it to stdout.
 
-If ``sed`` is used by a shell-script, that script has full control over how
-``sed`` processes data. In this analogy, ``sed`` is libinput and the
-shell script is the compositor. It is not possible to write a program
-to modify the behavior of the ``sed`` instance used inside that shell script
+.. graphviz:: libinput-contexts.gv
+
+A libinput context is private to the process and cannot be modified from the
+outside. To use the ``sed`` analogy again: if ``sed`` is used by a
+shell-script, that script has full control over how ``sed`` processes data. In
+this analogy, ``sed`` is libinput and the shell script is the compositor. It is
+not possible to write a program to modify the behavior of the ``sed`` instance
+used inside that shell script.
 
 Writing a program that uses libinput is akin to writing a new script that
 invoke ``sed``. It will not have any effect on the original ``sed`` instance.
@@ -360,6 +364,14 @@ The only way to modify libinput's behavior is to use the configuration options
 exposed by the respective compositor. Those affect the libinput context inside
 the compositor and thus have an effect on the input device behavior.
 
+.. _faq_debug_events_not_showing_configuration:
+
+------------------------------------------------------------------------------
+Why doesn't libinput debug-events show my configuration
+------------------------------------------------------------------------------
+
+See :ref:`faq_separate_contexts`.
+
 ------------------------------------------------------------------------------
 Can I configure scroll speed?
 ------------------------------------------------------------------------------

doc/user/index.rst

@@ -12,6 +12,7 @@
   troubleshooting
   contributing
   development
+  lua-plugins
   API documentation <@HTTP_DOC_LINK@/api/>
 
 

doc/user/lua-plugins.rst

@@ -0,0 +1,661 @@
+.. _lua_plugins:
+
+==============================================================================
+Lua Plugins
+==============================================================================
+
+libinput provides a plugin system that allows users to modify the behavior
+of devices. For example, a plugin may add or remove axes and/or buttons on a
+device and/or modify the event stream seen by this device before it is passed
+to libinput.
+
+Plugins are implemented in `Lua <https://www.lua.org/>`_ (version 5.4)
+and are typically loaded from the following paths:
+
+- ``/etc/libinput/plugins/*.lua``, and
+- ``/usr/lib{64}/libinput/plugins/*.lua``
+
+Plugins are loaded in alphabetical order and where
+multiple plugins share the same file name, the one in the highest precedence
+directory is used. Plugins in ``/etc`` take precedence over
+plugins in ``/usr``.
+
+.. note:: Plugins lookup paths and their order are decided by the compositor.
+          Some compositors may support more/fewer/other lookup paths than the
+          above defaults.
+
+Plugins are run sequentially in ascending sort-order (i.e. ``00-foo.lua`` runs
+before ``10-bar.lua``) and each plugin sees the state left by any previous
+plugins. For example if ``00-foo.lua`` changes all left button events to right
+button events, ``10-bar.lua`` only ever sees right button events.
+
+See the `Lua Reference manual <https://www.lua.org/manual/5.4/manual.html>`_ for
+details on the Lua language.
+
+.. note:: Plugins are **not** loaded by default, it is up to the compositor
+          whether to allow plugins. An explicit call to
+          ``libinput_plugin_system_load_plugins()`` is required.
+
+------------------------------------------------------------------------------
+Limitations
+------------------------------------------------------------------------------
+
+Each script runs in its own sandbox and cannot communicate or share state with
+other scripts.
+
+Tables that hold API methods are not writable, i.e. it is not possible
+to overwrite the default functionality of those APIs.
+
+The Lua API available to plugins is limited to the following calls::
+
+    assert  error   ipairs  next     pairs  tonumber
+    pcall   select  print   tostring type   xpcall
+    table   string  math    _VERSION
+
+It is not possible to e.g. use the ``io`` module from a script.
+
+To use methods on instantiated objects, the ``object:method`` method call
+syntax must be used. For example:
+
+.. code-block:: lua
+
+    libinput:register()
+    libinput.register() -- this will fail
+
+------------------------------------------------------------------------------
+When to use plugins
+------------------------------------------------------------------------------
+
+libinput plugins are a relatively niche use-case that typically need to
+address either once-off issues (e.g. those caused by worn-out hardware) or
+user preferences that libinput does not and will not cater for.
+
+Plugins should not be used for issues that can be fixed generically, for
+example via :ref:`device-quirks`.
+
+As a rule of thumb: a plugin should be a once-off that only works for one
+user's hardware. If a plugin can be shared with many users then the plugin
+implements functionality that should be integrated into libinput proper.
+
+------------------------------------------------------------------------------
+Testing plugins
+------------------------------------------------------------------------------
+
+Our :ref:`tools` support plugins if passed the ``--enable-plugins`` commandline
+option. For implementing and testing plugins the easiest commands to test are
+
+- ``libinput debug-events --enable-plugins`` (see :ref:`libinput-debug-events` docs)
+- ``libinput debug-gui --enable-plugins`` (see :ref:`libinput-debug-gui` docs)
+
+Where libinput is built and run from git, the tools will also look for plugins
+in the meson build directory. See the ``plugins/meson.build`` file for details.
+
+.. _plugins_api_lua:
+
+--------------------------------------------------------------------------------
+Lua Plugin API
+--------------------------------------------------------------------------------
+
+Lua plugins sit effectively below libinput and the API is not a
+representation of the libinput API. Plugins modify the evdev event stream
+received from the kernel.
+
+.. graphviz:: plugin-stack.gv
+
+The API revolves around two types: ``libinput`` and ``EvdevDevice``. The
+``libinput`` type is used to register a plugin from a script, the
+``EvdevDevice`` represents one device that is present in the system (but may
+not have yet been added by libinput).
+
+Typically a script does the following steps:
+
+- register with libinput via ``libinput:register({versions})``
+- connect to the ``"new-evdev-device"`` event
+- receive an ``EvdevDevice`` object in the ``"new-evdev-device"`` callback
+
+  - check and/or modify the evdev event codes on the device
+  - connect to the device's ``"evdev-frame"`` event
+
+- receive an :ref:`evdev frame <plugins_api_evdev_frame>` in the device's
+  ``"evdev-frame"`` callback
+
+  - check and/or modify the events in that frame
+
+Where multiple plugins are active, the evdev frame passed to the callback is
+the combined frame as processed by all previous plugins in ascending sort order.
+For example, if one plugin discards all button events subsequent plugins will
+never see those button events in the frame.
+
+.. _plugins_api_version_stability:
+
+..............................................................................
+Plugin version stability
+..............................................................................
+
+Plugin API version stability is provided on a best effort basis. We aim to provide
+stable plugin versions for as long as feasible but may need to retire some older
+versions over time. For this reason a plugin can select multiple versions it
+implements, libinput will pick one supported version and adjust the plugin
+behavior to match that version. See the ``libinput:register()`` call for details.
+
+--------------------------------------------------------------------------------
+Lua Plugin API Reference
+--------------------------------------------------------------------------------
+
+
+libinput provides the following globals and types:
+
+.. _plugins_api_evdev_usage:
+
+................................................................................
+Evdev Usages
+................................................................................
+
+Evdev usages are a libinput-specific wrapper around the ``linux/input-event-codes.h``
+evdev types and codes. They are used by libinput internally and are a 32-bit
+combination of ``type << 16 | code``. Each usage carries the type and code and
+is thus simpler to pass around and less prone to type confusion.
+
+The :ref:`evdev global <plugins_api_evdev_global>` attempts to provide all
+available usages but for the niche cases where it does not provide a named constant
+the value can be crafted manually:
+
+.. code-block:: lua
+
+   evdev_type = 0x3  -- EV_REL
+   evdev_code = 0x1  -- REL_Y
+   evdev_usage = (evdev_type << 16) | evdev_code
+
+   assert(usage == evdev.REL_Y)
+
+.. _plugins_api_evdev_global:
+
+................................................................................
+The ``evdev`` global
+................................................................................
+
+The ``evdev`` global represents all known :ref:`plugins_api_evdev_usage`,
+effectively in the form:
+
+.. code-block:: lua
+
+   evdev = {
+      ABS_X = (3 << 16) | 0,
+      ABS_Y = (3 << 16) | 1,
+      ...
+      REL_X = (2 << 16) | 0,
+      REL_Y = (2 << 16) | 1,
+      ...
+   }
+
+
+This global is provided for convenience to improve readability in the code.
+Note that the name uses the event code name only (e.g. ``evdev.ABS_Y``) but the
+value is an :ref:`Evdev Usage <plugins_api_evdev_usage>` (type and code).
+
+See the ``linux/input-event-codes.h`` header file provided by your kernel
+for a list of all evdev types and codes.
+
+The evdev global also provides the bus type constants, e.g. ``evdev.BUS_USB``.
+See the ``linux/input.h`` header file provided by your kernel
+for a list of bus types.
+
+
+.. _plugins_api_evdev_frame:
+
+................................................................................
+Evdev frames
+................................................................................
+
+Evdev frames represent a single frame of evdev events for a device. A frame
+is a group of events that occurred at the same time. The frame usually only
+contains state that has changed compared to the previous frame.
+
+In our API a frame is exposed as a nested table with the following structure:
+
+.. code-block:: lua
+
+    frame1 = {
+         { usage = evdev.ABS_X, value = 123 },
+         { usage = evdev.ABS_Y, value = 456 },
+         { usage = evdev.BTN_LEFT, value = 1 },
+    }
+    frame2 = {
+         { usage = evdev.ABS_Y, value = 457 },
+    }
+    frame3 = {
+         { usage = evdev.ABS_X, value = 124 },
+         { usage = evdev.BTN_LEFT, value = 0 },
+    }
+
+.. note:: This API does not use ``SYN_REPORT`` events, it is implied at the
+          end of the table. Where a plugin writes a ``SYN_REPORT`` into the
+          list of events, that ``SYN_REPORT`` terminates the event frame
+          (similar to writing a ``\0`` into the middle of a C string).
+          A frame containing only a ``SYN_REPORT`` is functionally equivalent
+          to an empty frame.
+
+Events or frames do not have a timestamp. Where a timestamp is required, that
+timestamp is passed as additional argument to the function or return value.
+
+See :ref:`plugins_api_evdev_global` for a list of known usages.
+
+.. warning:: Evdev frames have an implementation-defined size limit of how many
+             events can be added to a single frame. This limit should never be
+             hit by valid plugins.
+
+.. _plugins_api_libinputglobal:
+
+................................................................................
+The ``libinput`` global object
+................................................................................
+
+The core of our plugin API is the ``libinput`` global object. A script must
+immediately ``register()`` to be active, otherwise it is unloaded immediately.
+
+All libinput-specific APIs can be accessed through the ``libinput`` object.
+
+.. function:: libinput:register({1, 2, ...})
+
+   Register this plugin with the given table of supported version numbers and
+   returns the version number selected by libinput for this plugin. See
+   :ref:`plugins_api_version_stability` for details.
+
+   .. code-block:: lua
+
+       -- this plugin can support versions 1, 4 and 5
+       version = libinput:register({1, 4, 5})
+       if version == 1 then
+           ...
+
+   This function must be the first function called.
+   If the plugin calls any other functions before ``register()``, those functions
+   return the default zero value for the return type (``nil``, ``0``, an empty
+   table, etc.).
+
+   If the plugin does not call ``register()`` it will be removed immediately.
+   Once registered, any connected callbacks will be invoked whenever libinput
+   detects new devices, removes devices, etc.
+
+   This function must only be called once.
+
+.. function:: libinput:unregister()
+
+   Unregister this plugin. This removes the plugin from libinput and releases
+   any resources associated with this plugin. This call must be the last call
+   in your plugin, it is effectively equivalent to Lua's
+   `os.exit() <https://www.lua.org/manual/5.4/manual.html#pdf-os.exit>`_.
+
+.. function:: libinput:log_debug(message)
+
+   Log a message at the libinput debug log priority. See
+   ``libinput:log_error()`` for details.
+
+.. function:: libinput:log_info(message)
+
+   Log a message at the libinput info log priority. See
+   ``libinput:log_error()`` for details.
+
+.. function:: libinput:log_error(message)
+
+   Log a message at the libinput error log priority. Whether a message is
+   displayed in the log depends on libinput's log priority, set by the caller.
+
+   A compositor may disable stdout and stderr. Log messages should be preferred
+   over Lua's ``print()`` function to ensure the messages end up in the same
+   location as other libinput log messages and are not discarded.
+
+.. function:: libinput:now()
+
+   Returns the current time in microseconds in ``CLOCK_MONOTONIC``. This is
+   the timestamp libinput uses internally. This timestamp cannot be mapped
+   to any particular time of day, see the
+   `clock_gettime() man page <https://man7.org/linux/man-pages/man3/clock_gettime.3.html>`_
+   for details.
+
+.. function:: libinput:version()
+
+   Returns the agreed-on version of the plugin, see ``libinput:register()``.
+   If called before ``libinput:register()`` this function returns ``0``.
+
+.. function:: libinput:connect(name, function)
+
+   Set the callback to the given event name. Only one callback
+   may be set for an event name at any time, subsequent callbacks
+   will replace any earlier callbacks for the same name.
+
+   Version 1 of the plugin API supports the following events and callback arguments:
+
+   - ``"new-evdev-device"``: A new :ref:`EvdevDevice <plugins_api_evdevdevice>`
+     has been seen by libinput but not yet added.
+
+     .. code-block:: lua
+
+      libinput:connect("new-evdev-device", function (device) ... end)
+
+   - ``"timer-expired"``: The timer for this plugin has expired. This event is
+     only sent if the plugin has set a timer with ``timer_set()``.
+
+     .. code-block:: lua
+
+      libinput:connect("timer-expired", function (now) ... end)
+
+     The ``now`` argument is the current time in microseconds in
+     ``CLOCK_MONOTONIC`` (see ``libinput:now()``).
+
+.. function:: libinput:timer_cancel()
+
+   Cancel the timer for this plugin. This is a no-op if the timer
+   has not been set or has already expired.
+
+.. function:: libinput:timer_set_absolute(time)
+
+   Set a timer for this plugin, with the given time in microseconds.
+   The timeout specifies an absolute time in microseconds (see
+   ``libinput:now()``) The timer will expire once and then call the
+   ``"timer-expired"`` event handler (if any).
+
+   See ``libinput:timer_set_relative()`` for a relative timer.
+
+   The following two lines of code are equivalent:
+
+   .. code-block:: lua
+
+      libinput:timer_set_relative(1000000) -- 1 second from now
+      libinput:timer_set_absolute(libinput:now() + 1000000) -- 1 second from now
+
+   Calling this function will cancel any existing (relative or absolute) timer.
+
+.. function:: libinput:timer_set_relative(timeout)
+
+   Set a timer for this plugin, with the given timeout in microseconds from
+   the current time. The timer will expire once and then call the
+   ``"timer-expired"`` event handler (if any).
+
+   See ``libinput:timer_set_absolute()`` for an absolute timer.
+
+   The following two lines of code are equivalent:
+
+   .. code-block:: lua
+
+      libinput:timer_set_relative(1000000) -- 1 second from now
+      libinput:timer_set_absolute(libinput:now() + 1000000) -- 1 second from now
+
+   Calling this function will cancel any existing (relative or absolute) timer.
+
+.. _plugins_api_evdevdevice:
+
+................................................................................
+The ``EvdevDevice`` type
+................................................................................
+
+The ``EvdevDevice`` type represents a device available in the system
+but not (yet) added by libinput. This device may be used to modify
+a device's capabilities before the device is processed by libinput.
+
+A plugin should always ``connect()`` to the ``"device-removed"`` callback
+to be notified when a device is removed. If the plugin keeps a reference
+to this device but the device is discarded by libinput, the device's query
+methods will return zero values (e.g. ``nil``, ``0``, an empty table) and
+methods will be noops.
+
+.. function:: EvdevDevice:info()
+
+   A table containing static information about the device, e.g.
+
+   .. code-block:: lua
+
+      {
+         bustype = evdev.BUS_USB,
+         vid = 0x1234,
+         pid = 0x5678,
+      }
+
+   A plugin must ignore keys it does not know about.
+
+   Version 1 of the plugin API supports the following keys and values:
+
+   - ``bustype``: The numeric bustype of the device. See the
+     ``BUS_*`` defines in ``linux/input.h`` for the list of possible values.
+   - ``vid``: The 16-bit vendor ID of the device
+   - ``pid``: The 16-bit product ID of the device
+
+   If the device has since been discarded by libinput, this function returns an
+   empty table.
+
+.. function:: EvdevDevice:name()
+
+   The device name as set by the kernel
+
+.. function:: EvdevDevice:usages()
+
+   Returns a table of all usages that are currently enabled for this
+   device. Any type that exists on the device has a table assigned and in this
+   table any code that exists on the device is a boolean true.
+   For example:
+
+   .. code-block:: lua
+
+      {
+         evdev.REL_X = true,
+         evdev.REL_Y = true,
+         evdev.BTN_LEFT = true,
+      }
+
+   All other usages are ``nil``, so that the following code is possible:
+
+   .. code-block:: lua
+
+      local usages = device:usages()
+      if usages[evdev.REL_X] then
+         -- do something
+      end
+
+
+   If the device has since been discarded by libinput, this function returns an
+   empty table.
+
+.. function:: EvdevDevice:absinfos()
+
+   Returns a table of all ``EV_ABS`` codes that are currently enabled for this device.
+   The event code is the key, each value is a table containing the following keys:
+   ``minimum``, ``maximum``, ``fuzz``, ``flat``, ``resolution``.
+
+   .. code-block:: lua
+
+      {
+         evdev.ABS_X = {
+            minimum = 0,
+            maximum = 1234,
+            fuzz = 0,
+            flat = 0,
+            resolution = 45,
+         },
+      }
+
+   If the device has since been discarded by libinput, this function returns an
+   empty table.
+
+.. function:: EvdevDevice:udev_properties()
+
+   Returns a table containing a filtered list of udev properties available on this device
+   in the form ``{ property_name = property_value, ... }``.
+   udev properties used as a boolean (e.g. ``ID_INPUT``) are only present if their
+   value is a logical true.
+
+   Version 1 of the plugin API supports the following udev properties:
+
+   - ``ID_INPUT`` and all of ``ID_INPUT_*`` that denote the device type as assigned
+     by udev. This information is usually used by libinput to determine a
+     device type. Note that for historical reasons these properties have
+     varying rules - some properties may be mutually exclusive, others are
+     independent, others may only be set if another property is set. Refer to
+     the udev documentation (if any) for details. ``ID_INPUT_WIDTH_MM`` and
+     ``ID_INPUT_HEIGHT_MM`` are excluded from this set.
+
+   If the device has since been discarded by libinput, this function returns an
+   empty table.
+
+.. function:: EvdevDevice:enable_evdev_usage(usage)
+
+   Enable the given :ref:`evdev usage <plugins_api_evdev_usage>` for this device.
+   Use :ref:`plugins_api_evdev_global` for better readability,
+   e.g. ``device:enable_evdev_usage(evdev.REL_X)``.
+   This function must not be used for ``ABS_*`` events, use ``set_absinfo()``
+   instead.
+
+   Once a usage is enabled, events for that usage may be added to a device's
+   frame.
+
+   If the device has since been discarded by libinput, this function does nothing.
+
+.. function:: EvdevDevice:disable_evdev_usage(usage)
+
+   Disable the given :ref:`evdev usage <plugins_api_evdev_usage>` for this device.
+   Use :ref:`plugins_api_evdev_global` for better readability,
+   e.g. ``device:disable_evdev_usage(evdev.REL_X)``.
+
+   Once a usage is disabled, events for that usage are discarded from any
+   device frame.
+
+   If the device has since been discarded by libinput, this function does nothing.
+
+.. function:: EvdevDevice:set_absinfo(usage, absinfo)
+
+   Set the absolute axis information for the given :ref:`evdev usage <plugins_api_evdev_usage>`
+   and enable it if it does not yet exist on the device. The ``absinfo`` argument is a table
+   containing zero or more of the following keys: ``minimum``, ``maximum``, ``fuzz``,
+   ``flat``, ``resolution``. Any missing key defaults the corresponding
+   value from the device if the device already has this event usage or zero otherwise.
+   For example, the following code changes the resolution but leaves everything
+   else as-is:
+
+   .. code-block:: lua
+
+      local absinfo = {
+         resolution = 40,
+      }
+      device:set_absinfo(evdev.ABS_X, absinfo)
+      device:set_absinfo(evdev.ABS_Y, absinfo)
+
+   Use :ref:`plugins_api_evdev_global` for better readability as shown in the
+   example above.
+
+   If the device has since been discarded by libinput, this function does nothing.
+
+   .. note:: Overriding the absinfo values often indicates buggy firmware. This should
+             typically be fixed with an entry in the
+             `60-evdev.hwdb <https://github.com/systemd/systemd/blob/main/hwdb.d/60-evdev.hwdb>`_
+             or :ref:`device-quirks` instead of a plugin so all users of that
+             device can benefit from the fix.
+
+.. function:: EvdevDevice:connect(name, function)
+
+   Set the callback to the given event name. Only one callback
+   may be set for an event name at any time, subsequent callbacks
+   will overwrite any earlier callbacks for the same name.
+
+   If the device has since been discarded by libinput, this function does nothing.
+
+   Version 1 of the plugin API supports the following events and callback arguments:
+
+   - ``"evdev-frame"``: A new :ref:`evdev frame <plugins_api_evdev_frame>` has
+     started for this device. If the callback returns a value other than
+     ``nil``, that value is the frame with any modified events.
+     An empty frame (``{}``) causes libinput to drop the current event frame.
+
+     .. code-block:: lua
+
+        device:connect("evdev-frame", function (device, frame, timestamp)
+            -- change any event into a movement left by 1 pixel
+            move_left = {
+                  { usage = evdev.REL_X, value = -1, },
+            }
+            return move_left
+        end
+
+     The timestamp of an event frame is in microseconds in ``CLOCK_MONOTONIC``, see
+     ``libinput:now()`` for details.
+
+     For performance reasons plugins that do not modify the event frame should
+     return ``nil`` (or nothing) instead of the event frame that was passed
+     as argument.
+
+   - ``"device-removed"``: This device was removed by libinput. This may happen
+     without the device ever becoming a libinput device as seen by libinput's
+     public API (e.g. if the device does not meet the requirements to be
+     added). Once this callback is invoked, the plugin should remove any
+     references to this device and stop using it.
+
+     .. code-block:: lua
+
+      device:connect("device-removed", function (device) ... end)
+
+     Functions to query the device's capabilities (e.g. ``usages()``) will
+     return an empty table.
+
+.. function:: EvdevDevice:disconnect(name)
+
+   Disconnect the existing callback (if any) for the given event name. See
+   ``EvdevDevice:connect()`` for a list of supported names.
+
+.. function:: EvdevDevice:prepend_frame(frame)
+
+   Prepend an :ref:`evdev frame <plugins_api_evdev_frame>` for this device
+   **before** the current frame (if any). The **next** plugin will see the
+   prepended frame first followed by the current frame.
+
+   This function can only be called from within a device's ``"evdev-frame"``
+   handler or from within the plugin's timer callback function.
+
+   For example, to change a single event into a drag, prepend a button
+   down and append a button up before each event:
+
+   .. code:: lua
+
+      function frame_handler(device, frame, timestamp)
+          device:prepend_frame({
+              { usage = evdev.BTN_LEFT, value = 1}
+          })
+          device:append_frame({
+              { usage = evdev.BTN_LEFT, value = 0}
+          })
+          return nil  -- return the current frame unmodified
+
+          -- The next plugin sees the event sequence:
+          --    button down, frame, button up
+      end
+
+   If called from within the plugin's timer there is no current frame and this
+   function is identical to ``append_frame()``.
+
+.. function:: EvdevDevice:append_frame(frame)
+
+   Appends an :ref:`evdev frame <plugins_api_evdev_frame>` for this device
+   **after** the current frame (if any). This function can only be called from
+   within a device's ``"evdev-frame"`` handler or from within the plugin's timer
+   callback function.
+
+   If called from within the plugin's timer there is no current frame and this
+   function is identical to ``prepend_frame()``.
+
+   See ``prepend_frame()`` for more details.
+
+.. function:: EvdevDevice:disable_feature(feature_name)
+
+   Disable the given libinput-internal feature for this device. This should be used
+   by plugins that replace that feature with a custom implementation for this device.
+
+   libinput may have multiple internal implementations for any given feature, disabling
+   it via this API disables any and all of those implementations, causing the feature to
+   no longer work at all. It is up to the plugin implementation to re-implement that
+   feature to match the user's expectation.
+
+   Version 1 of the plugin API supports the following features:
+
+   - ``"button-debouncing"``: see :ref:`button_debouncing`
+   - ``"touchpad-hysteresis"``: see :ref:`touchpad_jitter`
+   - ``"touchpad-jump-detection"``: see :ref:`touchpad_jumping_cursor`
+   - ``"touchpad-palm-detection"``: see :ref:`palm_detection`
+   - ``"wheel-debouncing"``: some high-resolution mouse wheel movements inside libinput
+     are delayed and/or modified

doc/user/meson.build

@@ -95,11 +95,13 @@ src_rst = files(
 	# dot drawings
 	'dot/seats-sketch.gv',
 	'dot/seats-sketch-libinput.gv',
+	'dot/libinput-contexts.gv',
 	'dot/libinput-stack-wayland.gv',
 	'dot/libinput-stack-xorg.gv',
 	'dot/libinput-stack-gnome.gv',
 	'dot/evemu.gv',
 	'dot/libinput-record.gv',
+	'dot/plugin-stack.gv',
 	# svgs
 	'svg/button-debouncing-wave-diagram.svg',
 	'svg/button-scrolling.svg',
@@ -155,6 +157,7 @@ src_rst = files(
 	'middle-button-emulation.rst',
 	'normalization-of-relative-motion.rst',
 	'palm-detection.rst',
+	'lua-plugins.rst',
 	'pointer-acceleration.rst',
 	'reporting-bugs.rst',
 	'scrolling.rst',

doc/user/reporting-bugs.rst

@@ -113,8 +113,8 @@ When you file a bug, please attach the following information:
 - the output from udevadm info, see :ref:`udev_info`.
 - the vendor model number of your laptop (e.g. "Lenovo Thinkpad T440s")
 - and the content of ``/sys/class/dmi/id/modalias``.
-- run the ``touchpad-edge-detector`` tool (provided by libevdev) and verify
-  that the ranges and sizes it prints match the touchpad (up to 5mm
+- run ``libinput measure touchpad-size`` tool (see :ref:`absolute_coordinate_ranges_fix`)
+  and verify that the ranges and sizes it prints match the touchpad (up to 5mm
   difference is ok)
 
 If you are reporting a bug related to button event generation:

doc/user/touchpads.rst

@@ -17,7 +17,7 @@ other properties.
 Number of buttons
 ------------------------------------------------------------------------------
 
-.. _touchapds_buttons_phys:
+.. _touchpads_buttons_phys:
 
 ..............................................................................
 Physically separate buttons
@@ -57,7 +57,7 @@ property.
 .. _touchpads_buttons_forcepads:
 
 ..............................................................................
-Forcepads
+Forcepads/Pressurepads
 ..............................................................................
 
 Forcepads are Clickpads without a physical button underneath the hardware.
@@ -65,6 +65,7 @@ They provide pressure and may have a vibration element that is
 software-controlled. This element can simulate the feel of a physical
 click or be co-opted for other tasks.
 
+Forcepads are also called pressurepads or haptic touchpads.
 
 .. _touchpads_touch:
 
@@ -79,7 +80,7 @@ device can **track**, i.e. provide reliable positional information for.
 In the kernel each finger is tracked in a so-called "slot", the number of
 slots thus equals the number of simultaneous touches a device can track.
 
-.. _touchapds_touch_st:
+.. _touchpads_touch_st:
 
 ..............................................................................
 Single-touch touchpads

include/linux/freebsd/input-event-codes.h

@@ -27,6 +27,7 @@
 #define INPUT_PROP_TOPBUTTONPAD		0x04	/* softbuttons at top of pad */
 #define INPUT_PROP_POINTING_STICK	0x05	/* is a pointing stick */
 #define INPUT_PROP_ACCELEROMETER	0x06	/* has accelerometer */
+#define INPUT_PROP_PRESSUREPAD		0x07	/* pressure triggers clicks */
 
 #define INPUT_PROP_MAX			0x1f
 #define INPUT_PROP_CNT			(INPUT_PROP_MAX + 1)
@@ -278,7 +279,8 @@
 #define KEY_PAUSECD		201
 #define KEY_PROG3		202
 #define KEY_PROG4		203
-#define KEY_DASHBOARD		204	/* AL Dashboard */
+#define KEY_ALL_APPLICATIONS	204	/* AC Desktop Show All Applications */
+#define KEY_DASHBOARD		KEY_ALL_APPLICATIONS
 #define KEY_SUSPEND		205
 #define KEY_CLOSE		206	/* AC Close */
 #define KEY_PLAY		207
@@ -515,6 +517,10 @@
 #define KEY_10CHANNELSUP	0x1b8	/* 10 channels up (10+) */
 #define KEY_10CHANNELSDOWN	0x1b9	/* 10 channels down (10-) */
 #define KEY_IMAGES		0x1ba	/* AL Image Browser */
+#define KEY_NOTIFICATION_CENTER	0x1bc	/* Show/hide the notification center */
+#define KEY_PICKUP_PHONE	0x1bd	/* Answer incoming call */
+#define KEY_HANGUP_PHONE	0x1be	/* Decline incoming call */
+#define KEY_LINK_PHONE		0x1bf   /* AL Phone Syncing */
 
 #define KEY_DEL_EOL		0x1c0
 #define KEY_DEL_EOS		0x1c1
@@ -542,6 +548,7 @@
 #define KEY_FN_F		0x1e2
 #define KEY_FN_S		0x1e3
 #define KEY_FN_B		0x1e4
+#define KEY_FN_RIGHT_SHIFT	0x1e5
 
 #define KEY_BRL_DOT1		0x1f1
 #define KEY_BRL_DOT2		0x1f2
@@ -595,8 +602,14 @@
 #define BTN_DPAD_LEFT		0x222
 #define BTN_DPAD_RIGHT		0x223
 
+#define BTN_GRIPL		0x224
+#define BTN_GRIPR		0x225
+#define BTN_GRIPL2		0x226
+#define BTN_GRIPR2		0x227
+
 #define KEY_ALS_TOGGLE		0x230	/* Ambient light sensor */
 #define KEY_ROTATE_LOCK_TOGGLE	0x231	/* Display rotation lock */
+#define KEY_REFRESH_RATE_TOGGLE	0x232	/* Display refresh rate toggle */
 
 #define KEY_BUTTONCONFIG		0x240	/* AL Button Configuration */
 #define KEY_TASKMANAGER		0x241	/* AL Task/Project Manager */
@@ -607,10 +620,29 @@
 #define KEY_VOICECOMMAND		0x246	/* Listening Voice Command */
 #define KEY_ASSISTANT		0x247	/* AL Context-aware desktop assistant */
 #define KEY_KBD_LAYOUT_NEXT	0x248	/* AC Next Keyboard Layout Select */
+#define KEY_EMOJI_PICKER	0x249	/* Show/hide emoji picker (HUTRR101) */
+#define KEY_DICTATE		0x24a	/* Start or Stop Voice Dictation Session (HUTRR99) */
+#define KEY_CAMERA_ACCESS_ENABLE	0x24b	/* Enables programmatic access to camera devices. (HUTRR72) */
+#define KEY_CAMERA_ACCESS_DISABLE	0x24c	/* Disables programmatic access to camera devices. (HUTRR72) */
+#define KEY_CAMERA_ACCESS_TOGGLE	0x24d	/* Toggles the current state of the camera access control. (HUTRR72) */
+#define KEY_ACCESSIBILITY		0x24e	/* Toggles the system bound accessibility UI/command (HUTRR116) */
+#define KEY_DO_NOT_DISTURB		0x24f	/* Toggles the system-wide "Do Not Disturb" control (HUTRR94)*/
 
 #define KEY_BRIGHTNESS_MIN		0x250	/* Set Brightness to Minimum */
 #define KEY_BRIGHTNESS_MAX		0x251	/* Set Brightness to Maximum */
 
+/*
+ * Keycodes for hotkeys toggling the electronic privacy screen found on some
+ * laptops on/off. Note when the embedded-controller turns on/off the eprivacy
+ * screen itself then the state should be reported through drm connecter props:
+ * https://www.kernel.org/doc/html/latest/gpu/drm-kms.html#standard-connector-properties
+ * Except when implementing the drm connecter properties API is not possible
+ * because e.g. the firmware does not allow querying the presence and/or status
+ * of the eprivacy screen at boot.
+ */
+#define KEY_EPRIVACY_SCREEN_ON		0x252
+#define KEY_EPRIVACY_SCREEN_OFF		0x253
+
 #define KEY_KBDINPUTASSIST_PREV		0x260
 #define KEY_KBDINPUTASSIST_NEXT		0x261
 #define KEY_KBDINPUTASSIST_PREVGROUP		0x262
@@ -655,6 +687,27 @@
 /* Select an area of screen to be copied */
 #define KEY_SELECTIVE_SCREENSHOT	0x27a
 
+/* Move the focus to the next or previous user controllable element within a UI container */
+#define KEY_NEXT_ELEMENT               0x27b
+#define KEY_PREVIOUS_ELEMENT           0x27c
+
+/* Toggle Autopilot engagement */
+#define KEY_AUTOPILOT_ENGAGE_TOGGLE    0x27d
+
+/* Shortcut Keys */
+#define KEY_MARK_WAYPOINT              0x27e
+#define KEY_SOS                                0x27f
+#define KEY_NAV_CHART                  0x280
+#define KEY_FISHING_CHART              0x281
+#define KEY_SINGLE_RANGE_RADAR         0x282
+#define KEY_DUAL_RANGE_RADAR           0x283
+#define KEY_RADAR_OVERLAY              0x284
+#define KEY_TRADITIONAL_SONAR          0x285
+#define KEY_CLEARVU_SONAR              0x286
+#define KEY_SIDEVU_SONAR               0x287
+#define KEY_NAV_INFO                   0x288
+#define KEY_BRIGHTNESS_MENU            0x289
+
 /*
  * Some keyboards have keys which do not have a defined meaning, these keys
  * are intended to be programmed / bound to macros by the user. For most
@@ -730,6 +783,9 @@
 #define KEY_KBD_LCD_MENU4		0x2bb
 #define KEY_KBD_LCD_MENU5		0x2bc
 
+/* Performance Boost key (Alienware)/G-Mode key (Dell) */
+#define KEY_PERFORMANCE			0x2bd
+
 #define BTN_TRIGGER_HAPPY		0x2c0
 #define BTN_TRIGGER_HAPPY1		0x2c0
 #define BTN_TRIGGER_HAPPY2		0x2c1
@@ -834,6 +890,7 @@
 #define ABS_TOOL_WIDTH		0x1c
 
 #define ABS_VOLUME		0x20
+#define ABS_PROFILE		0x21
 
 #define ABS_MISC		0x28
 
@@ -889,7 +946,8 @@
 #define SW_MUTE_DEVICE		0x0e  /* set = device disabled */
 #define SW_PEN_INSERTED		0x0f  /* set = pen inserted */
 #define SW_MACHINE_COVER	0x10  /* set = cover closed */
-#define SW_MAX			0x10
+#define SW_USB_INSERT		0x11  /* set = USB audio device connected */
+#define SW_MAX			0x11
 #define SW_CNT			(SW_MAX+1)
 
 /*

include/linux/linux/input-event-codes.h

@@ -27,6 +27,7 @@
 #define INPUT_PROP_TOPBUTTONPAD		0x04	/* softbuttons at top of pad */
 #define INPUT_PROP_POINTING_STICK	0x05	/* is a pointing stick */
 #define INPUT_PROP_ACCELEROMETER	0x06	/* has accelerometer */
+#define INPUT_PROP_PRESSUREPAD		0x07	/* pressure triggers clicks */
 
 #define INPUT_PROP_MAX			0x1f
 #define INPUT_PROP_CNT			(INPUT_PROP_MAX + 1)
@@ -278,7 +279,8 @@
 #define KEY_PAUSECD		201
 #define KEY_PROG3		202
 #define KEY_PROG4		203
-#define KEY_DASHBOARD		204	/* AL Dashboard */
+#define KEY_ALL_APPLICATIONS	204	/* AC Desktop Show All Applications */
+#define KEY_DASHBOARD		KEY_ALL_APPLICATIONS
 #define KEY_SUSPEND		205
 #define KEY_CLOSE		206	/* AC Close */
 #define KEY_PLAY		207
@@ -515,6 +517,10 @@
 #define KEY_10CHANNELSUP	0x1b8	/* 10 channels up (10+) */
 #define KEY_10CHANNELSDOWN	0x1b9	/* 10 channels down (10-) */
 #define KEY_IMAGES		0x1ba	/* AL Image Browser */
+#define KEY_NOTIFICATION_CENTER	0x1bc	/* Show/hide the notification center */
+#define KEY_PICKUP_PHONE	0x1bd	/* Answer incoming call */
+#define KEY_HANGUP_PHONE	0x1be	/* Decline incoming call */
+#define KEY_LINK_PHONE		0x1bf   /* AL Phone Syncing */
 
 #define KEY_DEL_EOL		0x1c0
 #define KEY_DEL_EOS		0x1c1
@@ -542,6 +548,7 @@
 #define KEY_FN_F		0x1e2
 #define KEY_FN_S		0x1e3
 #define KEY_FN_B		0x1e4
+#define KEY_FN_RIGHT_SHIFT	0x1e5
 
 #define KEY_BRL_DOT1		0x1f1
 #define KEY_BRL_DOT2		0x1f2
@@ -595,8 +602,14 @@
 #define BTN_DPAD_LEFT		0x222
 #define BTN_DPAD_RIGHT		0x223
 
+#define BTN_GRIPL		0x224
+#define BTN_GRIPR		0x225
+#define BTN_GRIPL2		0x226
+#define BTN_GRIPR2		0x227
+
 #define KEY_ALS_TOGGLE		0x230	/* Ambient light sensor */
 #define KEY_ROTATE_LOCK_TOGGLE	0x231	/* Display rotation lock */
+#define KEY_REFRESH_RATE_TOGGLE	0x232	/* Display refresh rate toggle */
 
 #define KEY_BUTTONCONFIG		0x240	/* AL Button Configuration */
 #define KEY_TASKMANAGER		0x241	/* AL Task/Project Manager */
@@ -607,10 +620,29 @@
 #define KEY_VOICECOMMAND		0x246	/* Listening Voice Command */
 #define KEY_ASSISTANT		0x247	/* AL Context-aware desktop assistant */
 #define KEY_KBD_LAYOUT_NEXT	0x248	/* AC Next Keyboard Layout Select */
+#define KEY_EMOJI_PICKER	0x249	/* Show/hide emoji picker (HUTRR101) */
+#define KEY_DICTATE		0x24a	/* Start or Stop Voice Dictation Session (HUTRR99) */
+#define KEY_CAMERA_ACCESS_ENABLE	0x24b	/* Enables programmatic access to camera devices. (HUTRR72) */
+#define KEY_CAMERA_ACCESS_DISABLE	0x24c	/* Disables programmatic access to camera devices. (HUTRR72) */
+#define KEY_CAMERA_ACCESS_TOGGLE	0x24d	/* Toggles the current state of the camera access control. (HUTRR72) */
+#define KEY_ACCESSIBILITY		0x24e	/* Toggles the system bound accessibility UI/command (HUTRR116) */
+#define KEY_DO_NOT_DISTURB		0x24f	/* Toggles the system-wide "Do Not Disturb" control (HUTRR94)*/
 
 #define KEY_BRIGHTNESS_MIN		0x250	/* Set Brightness to Minimum */
 #define KEY_BRIGHTNESS_MAX		0x251	/* Set Brightness to Maximum */
 
+/*
+ * Keycodes for hotkeys toggling the electronic privacy screen found on some
+ * laptops on/off. Note when the embedded-controller turns on/off the eprivacy
+ * screen itself then the state should be reported through drm connecter props:
+ * https://www.kernel.org/doc/html/latest/gpu/drm-kms.html#standard-connector-properties
+ * Except when implementing the drm connecter properties API is not possible
+ * because e.g. the firmware does not allow querying the presence and/or status
+ * of the eprivacy screen at boot.
+ */
+#define KEY_EPRIVACY_SCREEN_ON		0x252
+#define KEY_EPRIVACY_SCREEN_OFF		0x253
+
 #define KEY_KBDINPUTASSIST_PREV		0x260
 #define KEY_KBDINPUTASSIST_NEXT		0x261
 #define KEY_KBDINPUTASSIST_PREVGROUP		0x262
@@ -655,6 +687,27 @@
 /* Select an area of screen to be copied */
 #define KEY_SELECTIVE_SCREENSHOT	0x27a
 
+/* Move the focus to the next or previous user controllable element within a UI container */
+#define KEY_NEXT_ELEMENT               0x27b
+#define KEY_PREVIOUS_ELEMENT           0x27c
+
+/* Toggle Autopilot engagement */
+#define KEY_AUTOPILOT_ENGAGE_TOGGLE    0x27d
+
+/* Shortcut Keys */
+#define KEY_MARK_WAYPOINT              0x27e
+#define KEY_SOS                                0x27f
+#define KEY_NAV_CHART                  0x280
+#define KEY_FISHING_CHART              0x281
+#define KEY_SINGLE_RANGE_RADAR         0x282
+#define KEY_DUAL_RANGE_RADAR           0x283
+#define KEY_RADAR_OVERLAY              0x284
+#define KEY_TRADITIONAL_SONAR          0x285
+#define KEY_CLEARVU_SONAR              0x286
+#define KEY_SIDEVU_SONAR               0x287
+#define KEY_NAV_INFO                   0x288
+#define KEY_BRIGHTNESS_MENU            0x289
+
 /*
  * Some keyboards have keys which do not have a defined meaning, these keys
  * are intended to be programmed / bound to macros by the user. For most
@@ -730,6 +783,9 @@
 #define KEY_KBD_LCD_MENU4		0x2bb
 #define KEY_KBD_LCD_MENU5		0x2bc
 
+/* Performance Boost key (Alienware)/G-Mode key (Dell) */
+#define KEY_PERFORMANCE			0x2bd
+
 #define BTN_TRIGGER_HAPPY		0x2c0
 #define BTN_TRIGGER_HAPPY1		0x2c0
 #define BTN_TRIGGER_HAPPY2		0x2c1
@@ -834,6 +890,7 @@
 #define ABS_TOOL_WIDTH		0x1c
 
 #define ABS_VOLUME		0x20
+#define ABS_PROFILE		0x21
 
 #define ABS_MISC		0x28
 
@@ -889,7 +946,8 @@
 #define SW_MUTE_DEVICE		0x0e  /* set = device disabled */
 #define SW_PEN_INSERTED		0x0f  /* set = pen inserted */
 #define SW_MACHINE_COVER	0x10  /* set = cover closed */
-#define SW_MAX			0x10
+#define SW_USB_INSERT		0x11  /* set = USB audio device connected */
+#define SW_MAX			0x11
 #define SW_CNT			(SW_MAX+1)
 
 /*

meson.build

@@ -1,8 +1,8 @@
 project('libinput', 'c',
-	version : '1.28.901',
+	version : '1.30.0',
 	license : 'MIT/Expat',
 	default_options : [ 'c_std=gnu99', 'warning_level=2' ],
-	meson_version : '>= 0.56.0')
+	meson_version : '>= 0.64.0')
 
 libinput_version = meson.project_version().split('.')
 
@@ -156,8 +156,9 @@ if not cc.has_header_symbol('sys/ptrace.h', 'PTRACE_ATTACH', prefix : prefix)
 	config_h.set('PTRACE_CONT', 'PT_CONTINUE')
 	config_h.set('PTRACE_DETACH', 'PT_DETACH')
 endif
-
-config_h.set10('HAVE_INSTALLED_TESTS', get_option('install-tests'))
+if get_option('install-tests')
+	config_h.set('HAVE_INSTALLED_TESTS', 1)
+endif
 
 # Dependencies
 pkgconfig = import('pkgconfig')
@@ -167,6 +168,32 @@ dep_libevdev = dependency('libevdev', version: '>= 1.10.0')
 dep_lm = cc.find_library('m', required : false)
 dep_rt = cc.find_library('rt', required : false)
 
+dep_lua = dependency('lua-5.4', 'lua5.4', 'lua',
+		     version : '>= 5.4',
+		     required : get_option('lua-plugins'))
+have_lua = dep_lua.found()
+if have_lua
+	config_h.set('HAVE_LUA', 1)
+endif
+
+have_plugins =  dep_lua.found()
+if have_plugins
+	config_h.set('HAVE_PLUGINS', 1)
+endif
+
+autoload_plugins = get_option('autoload-plugins')
+if autoload_plugins
+	config_h.set('AUTOLOAD_PLUGINS', 1)
+endif
+
+summary({
+	'Plugins enabled' : have_plugins,
+	'Autoload plugins' : autoload_plugins,
+	'Lua Plugin support' : have_lua,
+	},
+	section : 'Plugins',
+	bool_yn : true)
+
 # Include directories
 includes_include = include_directories('include')
 includes_src = include_directories('src')
@@ -174,8 +201,8 @@ includes_src = include_directories('src')
 ############ mtdev configuration ############
 
 have_mtdev = get_option('mtdev')
-config_h.set10('HAVE_MTDEV', have_mtdev)
 if have_mtdev
+	config_h.set('HAVE_MTDEV', 1)
 	dep_mtdev = dependency('mtdev', version : '>= 1.1.0')
 else
 	dep_mtdev = declare_dependency()
@@ -184,8 +211,8 @@ endif
 ############ libwacom configuration ############
 
 have_libwacom = get_option('libwacom')
-config_h.set10('HAVE_LIBWACOM', have_libwacom)
 if have_libwacom
+	config_h.set('HAVE_LIBWACOM', 1)
 	dep_libwacom = dependency('libwacom', version : '>= 0.27')
 	if cc.has_header_symbol('libwacom/libwacom.h', 'WACOM_BUTTON_DIAL_MODESWITCH',
 				dependencies : dep_libwacom)
@@ -206,6 +233,7 @@ executable('libinput-device-group',
 	   dependencies : [dep_udev, dep_libwacom],
 	   include_directories : [includes_src, includes_include],
 	   install : true,
+	   install_tag : 'runtime',
 	   install_dir : dir_udev_callouts)
 executable('libinput-fuzz-extract',
 	   'udev/libinput-fuzz-extract.c',
@@ -214,16 +242,18 @@ executable('libinput-fuzz-extract',
 	   dependencies : [dep_udev, dep_libevdev, dep_lm],
 	   include_directories : [includes_src, includes_include],
 	   install : true,
+	   install_tag : 'runtime',
 	   install_dir : dir_udev_callouts)
 executable('libinput-fuzz-to-zero',
 	   'udev/libinput-fuzz-to-zero.c',
 	   dependencies : [dep_udev, dep_libevdev],
 	   include_directories : [includes_src, includes_include],
 	   install : true,
+	   install_tag : 'runtime',
 	   install_dir : dir_udev_callouts)
 
 udev_rules_config = configuration_data()
-udev_rules_config.set('UDEV_TEST_PATH', '')
+udev_rules_config.set('UDEV_TEST_PATH', dir_udev_callouts + '/')
 configure_file(input : 'udev/80-libinput-device-groups.rules.in',
 	       output : '80-libinput-device-groups.rules',
 	       install_dir : dir_udev_rules,
@@ -369,14 +399,15 @@ libquirks = static_library('quirks', src_libquirks,
 dep_libquirks = declare_dependency(link_with : libquirks)
 
 # Create /etc/libinput
-if meson.version().version_compare('>= 0.60')
-	install_emptydir(dir_etc / 'libinput')
-else
-	install_subdir('libinput', install_dir : dir_etc)
-endif
+install_emptydir(dir_etc / 'libinput')
 
 ############ libinput.so ############
-config_h.set10('EVENT_DEBUGGING', get_option('internal-event-debugging'))
+if get_option('internal-event-debugging')
+	config_h.set('EVENT_DEBUGGING', 1)
+endif
+
+config_h.set_quoted('LIBINPUT_PLUGIN_LIBDIR', dir_lib / 'libinput' / 'plugins')
+config_h.set_quoted('LIBINPUT_PLUGIN_ETCDIR', dir_etc / 'libinput' / 'plugins')
 
 install_headers('src/libinput.h')
 src_libinput = src_libfilter + [
@@ -384,6 +415,7 @@ src_libinput = src_libfilter + [
 	'src/libinput-plugin.c',
 	'src/libinput-plugin-button-debounce.c',
 	'src/libinput-plugin-mouse-wheel.c',
+	'src/libinput-plugin-mouse-wheel-lowres.c',
 	'src/libinput-plugin-tablet-double-tool.c',
 	'src/libinput-plugin-tablet-eraser-button.c',
 	'src/libinput-plugin-tablet-forced-tool.c',
@@ -408,10 +440,17 @@ src_libinput = src_libfilter + [
 	'src/timer.c',
 	'src/util-libinput.c',
 ]
+
 if have_mtdev
 	src_libinput += ['src/libinput-plugin-mtdev.c']
 endif
 
+if dep_lua.found()
+	src_libinput += [
+		'src/libinput-plugin-lua.c',
+	]
+endif
+
 deps_libinput = [
 	dep_mtdev,
 	dep_udev,
@@ -421,7 +460,8 @@ deps_libinput = [
 	dep_rt,
 	dep_libwacom,
 	dep_libinput_util,
-	dep_libquirks
+	dep_libquirks,
+	dep_lua,
 ]
 
 libinput_version_h_config = configuration_data()
@@ -452,9 +492,7 @@ dep_libinput = declare_dependency(
 		link_with : lib_libinput,
 		dependencies : deps_libinput)
 
-if meson.version().version_compare('>= 0.54.0')
-	meson.override_dependency('libinput', dep_libinput)
-endif
+meson.override_dependency('libinput', dep_libinput)
 
 pkgconfig.generate(
 	filebase : 'libinput',
@@ -463,6 +501,9 @@ pkgconfig.generate(
 	version : meson.project_version(),
 	libraries : lib_libinput,
 	requires_private : dep_udev,
+	variables : [
+		'plugindir=${libdir}/libinput/plugins'
+	]
 )
 
 git_version_h = vcs_tag(command : ['git', 'describe'],
@@ -470,6 +511,8 @@ git_version_h = vcs_tag(command : ['git', 'describe'],
 			input : 'src/libinput-git-version.h.in',
 			output :'libinput-git-version.h')
 
+subdir('plugins')
+
 ############ documentation ############
 
 if get_option('documentation')
@@ -515,6 +558,7 @@ executable('libinput-debug-events',
 	   dependencies : deps_tools,
 	   include_directories : [includes_src, includes_include],
 	   install_dir : libinput_tool_path,
+	   install_tag : 'bin',
 	   install : true
 	   )
 
@@ -524,8 +568,17 @@ executable('libinput-debug-tablet',
 	   dependencies : deps_tools,
 	   include_directories : [includes_src, includes_include],
 	   install_dir : libinput_tool_path,
+	   install_tag : 'bin',
 	   install : true)
 
+libinput_debug_tablet_pad_sources = [ 'tools/libinput-debug-tablet-pad.c' ]
+executable('libinput-debug-tablet-pad',
+	   libinput_debug_tablet_pad_sources,
+	   dependencies : deps_tools,
+	   include_directories : [includes_src, includes_include],
+	   install_dir : libinput_tool_path,
+	   install_tag : 'bin',
+	   install : true)
 
 libinput_quirks_sources = [ 'tools/libinput-quirks.c' ]
 libinput_quirks = executable('libinput-quirks',
@@ -533,6 +586,7 @@ libinput_quirks = executable('libinput-quirks',
 			     dependencies : [dep_libquirks, dep_tools_shared, dep_libinput],
 			     include_directories : [includes_src, includes_include],
 			     install_dir : libinput_tool_path,
+			     install_tag : 'bin',
 			     install : true
 			    )
 test('validate-quirks',
@@ -554,6 +608,7 @@ libinput_list_devices = executable('libinput-list-devices',
 				   dependencies : deps_tools,
 				   include_directories : [includes_src, includes_include],
 				   install_dir : libinput_tool_path,
+				   install_tag : 'bin',
 				   install : true,
 				  )
 test('list-devices',
@@ -566,6 +621,7 @@ executable('libinput-measure',
 	   dependencies : deps_tools,
 	   include_directories : [includes_src, includes_include],
 	   install_dir : libinput_tool_path,
+	   install_tag : 'bin',
 	   install : true,
 	   )
 
@@ -575,21 +631,22 @@ executable('libinput-analyze',
 	   dependencies : deps_tools,
 	   include_directories : [includes_src, includes_include],
 	   install_dir : libinput_tool_path,
+	   install_tag : 'bin',
 	   install : true,
 	   )
 
 src_python_tools = files(
-	      'tools/libinput-analyze-buttons.py',
-	      'tools/libinput-analyze-per-slot-delta.py',
-	      'tools/libinput-analyze-recording.py',
-	      'tools/libinput-analyze-touch-down-state.py',
-	      'tools/libinput-list-kernel-devices.py',
-	      'tools/libinput-measure-fuzz.py',
-	      'tools/libinput-measure-touchpad-size.py',
-	      'tools/libinput-measure-touchpad-tap.py',
-	      'tools/libinput-measure-touchpad-pressure.py',
-	      'tools/libinput-measure-touch-size.py',
-	      'tools/libinput-replay.py'
+	'tools/libinput-analyze-buttons.py',
+	'tools/libinput-analyze-per-slot-delta.py',
+	'tools/libinput-analyze-recording.py',
+	'tools/libinput-analyze-touch-down-state.py',
+	'tools/libinput-list-kernel-devices.py',
+	'tools/libinput-measure-fuzz.py',
+	'tools/libinput-measure-touchpad-size.py',
+	'tools/libinput-measure-touchpad-tap.py',
+	'tools/libinput-measure-touchpad-pressure.py',
+	'tools/libinput-measure-touch-size.py',
+	'tools/libinput-replay.py'
 )
 
 foreach t : src_python_tools
@@ -606,23 +663,23 @@ executable('libinput-record',
 	   dependencies : deps_tools + [dep_udev],
 	   include_directories : [includes_src, includes_include],
 	   install_dir : libinput_tool_path,
+	   install_tag : 'bin',
 	   install : true,
 	   )
 
-config_h.set10('HAVE_DEBUG_GUI', get_option('debug-gui'))
 if get_option('debug-gui')
+	config_h.set('HAVE_DEBUG_GUI', 1)
 	dep_gtk = dependency('gtk4', version : '>= 4.0', required : false)
-	config_h.set10('HAVE_GTK4', dep_gtk.found())
-	if not dep_gtk.found()
+	if dep_gtk.found()
+		config_h.set('HAVE_GTK4', 1)
+	else
 		dep_gtk = dependency('gtk+-3.0', version : '>= 3.20')
-		config_h.set10('HAVE_GTK3', dep_gtk.found())
+		if dep_gtk.found()
+			config_h.set('HAVE_GTK3', 1)
+		endif
 	endif
 
-	if meson.version().version_compare('>= 0.58')
-		gtk_targets = dep_gtk.get_variable('targets')
-	else
-		gtk_targets = dep_gtk.get_pkgconfig_variable('targets')
-	endif
+	gtk_targets = dep_gtk.get_variable('targets')
 
 	have_gtk_wayland = gtk_targets.contains('wayland')
 	have_gtk_x11 = gtk_targets.contains('x11')
@@ -633,18 +690,15 @@ if get_option('debug-gui')
 	dep_wayland_client = dependency('wayland-client', required : false)
 	dep_wayland_protocols = dependency('wayland-protocols', required : false)
 
-	config_h.set10('HAVE_GTK_X11', have_gtk_x11 and dep_x11.found())
-	config_h.set10('HAVE_GTK_WAYLAND', false)
+	if have_gtk_x11 and dep_x11.found()
+		config_h.set('HAVE_GTK_X11', 1)
+	endif
 
 	debug_gui_sources = [ 'tools/libinput-debug-gui.c' ]
 
 	if have_gtk_wayland and dep_wayland_client.found() and dep_wayland_protocols.found()
 		wayland_scanner = find_program('wayland-scanner')
-		if meson.version().version_compare('>= 0.58')
-			wlproto_dir = dep_wayland_protocols.get_variable('pkgdatadir')
-		else
-			wlproto_dir = dep_wayland_protocols.get_pkgconfig_variable('pkgdatadir')
-		endif
+		wlproto_dir = dep_wayland_protocols.get_variable('pkgdatadir')
 
 		proto_name = 'pointer-constraints-unstable-v1'
 		input = files(wlproto_dir / 'unstable' / 'pointer-constraints' / '@0@.xml'.format(proto_name))
@@ -662,7 +716,7 @@ if get_option('debug-gui')
 		)
 
 		debug_gui_sources += [ wayland_headers, wayland_sources ]
-		config_h.set10('HAVE_GTK_WAYLAND', true)
+		config_h.set('HAVE_GTK_WAYLAND', 1)
 	endif
 
 	deps_debug_gui = [
@@ -678,6 +732,7 @@ if get_option('debug-gui')
 		   dependencies : deps_debug_gui,
 		   include_directories : [includes_src, includes_include],
 		   install_dir : libinput_tool_path,
+		   install_tag : 'bin',
 		   install : true
 		   )
 	src_man += files('tools/libinput-debug-gui.man')
@@ -689,6 +744,7 @@ libinput_tool = executable('libinput',
 			   libinput_sources,
 			   dependencies : deps_tools,
 			   include_directories : [includes_src, includes_include],
+			   install_tag : 'bin',
 			   install : true
 			  )
 
@@ -779,6 +835,7 @@ executable('libinput-test',
 	   dependencies : deps_tools,
 	   include_directories : [includes_src, includes_include],
 	   install_dir : libinput_tool_path,
+	   install_tag : 'tests',
 	   install : true,
 	   )
 
@@ -788,11 +845,15 @@ if get_option('tests')
 	dep_check = dependency('check', version : '>= 0.9.10', required: false)
 
 	gstack = find_program('gstack', required : false)
-	config_h.set10('HAVE_GSTACK', gstack.found())
+	if gstack.found()
+		config_h.set('HAVE_GSTACK', 1)
+	endif
 
 	# for inhibit support during test run
 	dep_libsystemd = dependency('libsystemd', version : '>= 221', required : false)
-	config_h.set10('HAVE_LIBSYSTEMD', dep_libsystemd.found())
+	if dep_libsystemd.found()
+		config_h.set('HAVE_LIBSYSTEMD', 1)
+	endif
 
 	litest_sources = [
 		'src/libinput-private-config.c',
@@ -830,6 +891,7 @@ if get_option('tests')
 		'test/litest-device-keyboard-razer-blackwidow.c',
 		'test/litest-device-keyboard-razer-blade-stealth.c',
 		'test/litest-device-keyboard-razer-blade-stealth-videoswitch.c',
+		'test/litest-device-keypad-slide-switch.c',
 		'test/litest-device-lenovo-scrollpoint.c',
 		'test/litest-device-lid-switch.c',
 		'test/litest-device-lid-switch-surface3.c',
@@ -839,6 +901,8 @@ if get_option('tests')
 		'test/litest-device-magic-trackpad.c',
 		'test/litest-device-mouse.c',
 		'test/litest-device-mouse-wheel-tilt.c',
+		'test/litest-device-mouse-wheel-hires-disabled.c',
+		'test/litest-device-mouse-ps2.c',
 		'test/litest-device-mouse-roccat.c',
 		'test/litest-device-mouse-low-dpi.c',
 		'test/litest-device-mouse-virtual.c',
@@ -998,6 +1062,10 @@ if get_option('tests')
 		'test/test-switch.c',
 		'test/test-quirks.c',
 	]
+	if have_plugins and have_lua
+		tests_sources += ['test/test-plugins-lua.c']
+	endif
+
 	libinput_test_runner_sources = litest_sources + tests_sources
 	libinput_test_runner = executable('libinput-test-suite',
 					  libinput_test_runner_sources,
@@ -1022,7 +1090,10 @@ if get_option('tests')
 		'quirks',
 		'switch',
 		'tablet',
+		'tablet_eraser',
 		'tablet_left_handed',
+		'tablet_proximity',
+		'tablet_tip',
 		'totem',
 		'touch',
 		'touchpad',
@@ -1036,6 +1107,9 @@ if get_option('tests')
 		'trackpoint',
 		'udev',
 	]
+	if have_plugins and have_lua
+		collections += ['lua']
+	endif
 
 	foreach group : collections
 		test('libinput-test-suite-@0@'.format(group),
@@ -1043,7 +1117,7 @@ if get_option('tests')
 		     suite : ['all', 'valgrind', 'root', 'hardware'],
 		     args : ['--filter-group=@0@'.format(group)],
 		     is_parallel : false,
-		     timeout : 1200)
+		     timeout : 1100)
         endforeach
 
 	test('libinput-test-deviceless',
@@ -1063,7 +1137,7 @@ if get_option('tests')
 						'--error-exitcode=3',
 						'--suppressions=' + valgrind_suppressions_file ],
 				env :  valgrind_env,
-				timeout_multiplier : 100)
+				timeout_multiplier : 3)
 	else
 		message('valgrind not found, disabling valgrind test suite')
 	endif
@@ -1096,6 +1170,7 @@ src_man += files(
 	'tools/libinput-analyze-touch-down-state.man',
 	'tools/libinput-debug-events.man',
 	'tools/libinput-debug-tablet.man',
+	'tools/libinput-debug-tablet-pad.man',
 	'tools/libinput-list-devices.man',
 	'tools/libinput-list-kernel-devices.man',
 	'tools/libinput-measure.man',

meson_options.txt

@@ -42,3 +42,11 @@ option('internal-event-debugging',
 	type: 'boolean',
 	value: false,
 	description: 'Enable additional internal event debug tracing. This will print key values to the logs and thus must never be enabled in a release build')
+option('autoload-plugins',
+	type: 'boolean',
+	value: false,
+	description: 'Always load plugins from default plugin paths (only if the caller does not do so)')
+option('lua-plugins',
+	type: 'feature',
+	value: 'auto',
+	description: 'Enable support for Lua plugins')

plugins/10-copilot-key-override.lua

@@ -0,0 +1,71 @@
+-- SPDX-License-Identifier: MIT
+--
+-- This is an example libinput plugin
+--
+-- This plugin detects the Copilot key on the keyboard with
+-- the given VID/PID and replaces it with a different key (sequence).
+
+-- UNCOMMENT THIS LINE TO ACTIVATE THE PLUGIN
+-- libinput:register({1})
+
+-- Replace this with your keyboard's VID/PID
+KEYBOARD_VID = 0x046d
+KEYBOARD_PID = 0x4088
+
+meta_is_down = false
+shift_is_down = false
+
+-- shift-A, because you can never have enough screaming
+replacement_sequence = { evdev.KEY_LEFTSHIFT, evdev.KEY_A }
+
+function frame(device, frame, _)
+    for _, v in ipairs(frame) do
+        if v.value ~= 2 then -- ignore key repeats
+            if v.usage == evdev.KEY_LEFTMETA then
+                meta_is_down = v.value == 1
+            elseif v.usage == evdev.KEY_LEFTSHIFT then
+                shift_is_down = v.value == 1
+            elseif v.usage == evdev.KEY_F23 and meta_is_down and shift_is_down then
+                -- We know from the MS requirements that F23 for copilot is
+                -- either last key (on press) or the first key (on release)
+                -- of the three-key sequence, and no other keys are
+                -- within this frame.
+                if v.value == 1 then
+                    -- Release our modifiers first
+                    device:prepend_frame({
+                        { usage = evdev.KEY_LEFTSHIFT, value = 0 },
+                        { usage = evdev.KEY_LEFTMETA, value = 0 },
+                    })
+                    -- Insert our replacement press sequence
+                    local replacement_frame = {}
+                    for _, rv in ipairs(replacement_sequence) do
+                        table.insert(replacement_frame, { usage = rv, value = 1 })
+                    end
+                    device:append_frame(replacement_frame)
+                else
+                    -- Insert our replacement release sequence
+                    local replacement_frame = {}
+                    for idx = #replacement_sequence, 1, -1 do
+                        table.insert(replacement_frame, { usage = replacement_sequence[idx], value = 0 })
+                    end
+                    device:append_frame(replacement_frame)
+
+                    -- we don't care about re-pressing shift/meta because the
+                    -- rest of the stack will filter the release for an
+                    -- unpressed key anyway.
+                end
+
+                return {} -- discard this frame
+            end
+        end
+    end
+end
+
+function device_new(device)
+    local info = device:info()
+    if  info.vid == KEYBOARD_VID and info.pid == KEYBOARD_PID then
+        device:connect("evdev-frame", frame)
+    end
+end
+
+libinput:connect("new-evdev-device", device_new)

plugins/10-delay-motion.lua

@@ -0,0 +1,64 @@
+-- SPDX-License-Identifier: MIT
+--
+-- This is an example libinput plugin
+--
+-- This plugin delays any event with relative motion by the given DELAY
+-- by storing it in a table and replaying it via a timer callback later.
+
+-- UNCOMMENT THIS LINE TO ACTIVATE THE PLUGIN
+-- libinput:register({1})
+
+DELAY = 1500 * 1000 -- 1.5s
+next_timer_expiry = 0
+devices = {}
+
+function timer_expired(time_in_microseconds)
+    next_timer_expiry = 0
+    for device, frames in pairs(devices) do
+        while #frames > 0 and frames[1].time <= time_in_microseconds do
+            --- we don't have a current frame so it doesn't matter
+            --- whether we prepend or append
+            device:prepend_frame(frames[1].frame)
+            table.remove(frames, 1)
+        end
+        local next_frame = frames[1]
+        if next_frame and (next_timer_expiry == 0 or next_frame.time < next_timer_expiry) then
+            next_timer_expiry = next_frame.time
+        end
+    end
+    if next_timer_expiry ~= 0 then
+        libinput:timer_set_absolute(next_timer_expiry)
+    end
+end
+
+function frame(device, frame, timestamp)
+    for _, v in ipairs(frame) do
+        if v.usage == evdev.REL_X or v.usage == evdev.REL_Y then
+            local next_time = timestamp + DELAY
+            table.insert(devices[device], {
+                time = next_time,
+                frame = frame
+            })
+            if next_timer_expiry == 0 then
+                next_timer_expiry = next_time
+                libinput:timer_set_absolute(next_timer_expiry)
+            end
+            return {} -- discard frame
+        end
+    end
+    return nil
+end
+
+function device_new(device)
+    local usages = device:usages()
+    if usages[evdev.REL_X] then
+        devices[device] = {}
+        device:connect("evdev-frame", frame)
+        device:connect("device-removed", function(dev)
+            devices[dev] = nil
+        end)
+    end
+end
+
+libinput:connect("new-evdev-device", device_new)
+libinput:connect("timer-expired", timer_expired)

plugins/10-disable-feature.lua

@@ -0,0 +1,16 @@
+-- SPDX-License-Identifier: MIT
+--
+-- An example plugin to show how to disable an internal feature.
+--
+-- Typically one would expect the plugin to re-implement the feature
+-- in a more device-specific manner but that's not done here.
+
+-- UNCOMMENT THIS LINE TO ACTIVATE THE PLUGIN
+-- libinput:register({1})
+libinput:connect("new-evdev-device", function(device)
+    local udev_info = device:udev_properties()
+    if udev_info["ID_INPUT_TOUCHPAD"] then
+        libinput:log_info("Disabling palm detection on " .. device:name())
+        device:disable_feature("touchpad-palm-detection")
+    end
+end)

plugins/10-dwt.lua

@@ -0,0 +1,40 @@
+-- SPDX-License-Identifier: MIT
+--
+-- This plugin implements a very simple version of disable-while-typing.
+-- It monitors all keyboard devices and if any of them send an event,
+-- any touchpad device is disabled for 2 seconds.
+-- And "disabled" means any event from that touchpad is simply
+-- discarded.
+--
+-- Install this file in /etc/libinput/plugins and
+--
+-- UNCOMMENT THIS LINE TO ACTIVATE THE PLUGIN
+-- libinput:register({1})
+
+tp_enabled = true
+
+libinput:connect("timer-expired", function(now)
+    libinput:log_debug("touchpad enabled")
+    tp_enabled = true
+end)
+
+libinput:connect("new-evdev-device", function (device)
+    local props = device:udev_properties()
+    if props.ID_INPUT_KEYBOARD then
+        device:connect("evdev-frame", function (device, frame, timestamp)
+            libinput:timer_set_relative(2000000)
+            if tp_enabled then
+                libinput:log_debug("touchpad disabled")
+                tp_enabled = false
+            end
+        end)
+    elseif props.ID_INPUT_TOUCHPAD then
+        libinput:log_debug("Touchpad detected: " .. device:name())
+        device:connect("evdev-frame", function (device, frame, timestamp)
+            if not tp_enabled then
+                -- Returning an empty table discards the event.
+                return {}
+            end
+        end)
+    end
+end)

plugins/10-example.lua

@@ -0,0 +1,87 @@
+-- SPDX-License-Identifier: MIT
+--
+-- This is an example libinput plugin
+--
+-- This plugin swaps left and right buttons on any device that has both buttons.
+
+-- Let's create a plugin. A single Lua script may create more than one
+-- plugin instance but that's a bit of a nice use-case. Most scripts
+-- should be a single plugin.
+
+-- A plugin needs to be registered to activate. If it isn't, it is
+-- cleaned up immediately. In the register call we supply
+-- the list of plugin versions we support. Currently we only
+-- have version 1.
+--
+-- UNCOMMENT THIS LINE TO ACTIVATE THE PLUGIN
+-- libinput:register({1})
+
+-- Note to the reader: it will be easier to understand this example
+-- if you read it bottom-up from here on.
+
+-- The callback for our "evdev-frame" signal.
+-- These frames are sent *before* libinput gets to handle them so
+-- any modifications will affect libinput.
+function frame(device, frame, time_in_microseconds)
+    -- Frame is a table in the form
+    -- { { usage: 123, value: 3 }, ... }
+    -- Let's use the evdev module to make it more readable, evdev.KEY_A
+    -- is simply the value (0x1 << 16) | 0x1 (see linux/input-event-codes.h)
+    for _, v in ipairs(frame) do
+        -- If we get a right button event, change it to left, and
+        -- vice versa. Because this happens before libinput (or the next
+        -- plugin in the precedence order) sees the
+        -- frame it doesn't know that the swap happened.
+        if v.usage == evdev.BTN_RIGHT then
+            v.usage = evdev.BTN_LEFT
+        elseif v.usage == evdev.BTN_LEFT then
+            v.usage = evdev.BTN_RIGHT
+        end
+    end
+    -- We changed the frame, let's return it. If we return nil
+    -- the original frame is being used as-is.
+    return frame
+end
+
+-- This is a timer callback. It is invoked after one second
+-- (see below) but only once - re-set the timer so
+-- it goes off every second.
+function timer_expired(time_in_microseconds)
+    libinput:timer_set_absolute(time_in_microseconds + 1000000)
+end
+
+-- Callback for the "new-evdev-device" signal, see below
+-- The argument is the EvdevDevice object, see the documentation.
+function device_new(device)
+    -- A table of evdev usages available on our device.
+    -- Using the evdev module makes it more readable but you can
+    -- use numbers (which is what evdev.EV_KEY and
+    -- friends resolve to anyway).
+    local usages = device:usages()
+    if usages[evdev.BTN_LEFT] and usages[evdev.BTN_RIGHT] then
+        -- The "evdev-frame" callback is invoked whenever the device
+        -- provided us with one evdev frame, i.e. a bunch of events up
+        -- to excluding EV_SYN SYN_REPORT.
+        device:connect("evdev-frame", frame)
+    end
+
+    -- The device has udev information, let's print it out. Right
+    -- now all we get are the ID_INPUT_ bits.
+    -- If this is empty we know libinput will ignore this device anyway
+    local udev_info = device:udev_properties()
+    for k, v in pairs(udev_info) do
+        libinput:log_debug(k .. "=" .. v)
+    end
+end
+
+-- Let's connect to the "new-evdev-device" signal. This function
+-- is invoked when libinput detects a new evdev device (but before
+-- that device is actually available to libinput as libinput device).
+-- This allows us to e.g. change properties on the device.
+libinput:connect("new-evdev-device", device_new)
+
+-- Set our timer to expire 1s from now (in microseconds).
+-- Timers are absolute, so they need to be added to the
+-- current time
+libinput:connect("timer-expired", timer_expired)
+libinput:timer_set_relative(1000000)

plugins/10-logitech-mx-master-horiz-scroll.lua

@@ -0,0 +1,32 @@
+-- SPDX-License-Identifier: MIT
+--
+-- This plugin inverts the horizontal scroll direction of
+-- the Logitech MX Master mouse. OOTB the mouse scrolls
+-- in the opposite direction to all other mice out there.
+--
+-- This plugin is only needed when the mouse is connected
+-- to the Logitech Bolt receiver - on that receiver we cannot
+-- tell which device is connected.
+--
+-- For the Logitech Unifying receiver and Bluetooth please
+-- add the ModelInvertHorizontalScrolling=1 quirk
+-- in quirks/30-vendor-logitech.quirks.
+--
+--
+-- Install this file in /etc/libinput/plugins and
+--
+-- UNCOMMENT THIS LINE TO ACTIVATE THE PLUGIN
+-- libinput:register({1})
+libinput:connect("new-evdev-device", function (device)
+    local info = device:info()
+    if info.vid == 0x046D and info.pid == 0xC548 then
+        device:connect("evdev-frame", function (device, frame, timestamp)
+            for _, event in ipairs(frame) do
+                if event.usage == evdev.REL_HWHEEL or event.usage == evdev.REL_HWHEEL_HI_RES then
+                    event.value = -event.value
+                end
+            end
+            return frame
+        end)
+    end
+end)

plugins/10-pointer-go-faster.lua

@@ -0,0 +1,22 @@
+-- SPDX-License-Identifier: MIT
+--
+-- An example plugin to make the pointer go three times as fast
+--
+-- Install this file in /etc/libinput/plugins and
+--
+-- UNCOMMENT THIS LINE TO ACTIVATE THE PLUGIN
+-- libinput:register({1})
+libinput:connect("new-evdev-device", function(device)
+    local usages = device:usages()
+    if usages[evdev.REL_X] then
+        device:connect("evdev-frame", function(device, frame, timestamp)
+            for _, v in ipairs(frame) do
+                if v.usage == evdev.REL_X or v.usage == evdev.REL_Y then
+                    -- Multiply the relative motion by 3
+                    v.value = v.value * 3
+                end
+            end
+            return frame
+        end)
+    end
+end)

plugins/10-pointer-go-slower.lua

@@ -0,0 +1,56 @@
+-- SPDX-License-Identifier: MIT
+--
+-- An example plugin to make the pointer go three times as slow
+--
+-- Install this file in /etc/libinput/plugins and
+--
+-- UNCOMMENT THIS LINE TO ACTIVATE THE PLUGIN
+-- libinput:register({1})
+remainders = {}
+
+function split(v)
+    if math.abs(v) >= 1.0 then
+        local i = math.floor(math.abs(v))
+        local r = math.abs(v) % 1.0
+        if v < 0.0 then
+            i = -i
+            r = -r
+        end
+        return i, r
+    else
+        return 0, v
+    end
+end
+
+function decelerate(device, x, y)
+    local remainder = remainders[device]
+    local rx, ry = 0, 0
+    if x ~= 0.0 then
+        rx, remainder.x = split(remainder.x + x/3.0)
+    end
+    if y ~= 0.0 then
+        ry, remainder.y = split(remainder.y + y/3.0)
+    end
+
+    return rx, ry
+end
+
+libinput:connect("new-evdev-device", function(device)
+    local usages = device:usages()
+    if usages[evdev.REL_X] then
+        remainders[device] = { x = 0.0, y = 0.0 }
+        device:connect("evdev-frame", function(device, frame, timestamp)
+            for _, v in ipairs(frame) do
+                if v.usage == evdev.REL_X then
+                    v.value, _ = decelerate(device, v.value, 0.0)
+                elseif v.usage == evdev.REL_Y then
+                    _, v.value = decelerate(device, 0.0, v.value)
+                end
+            end
+            return frame
+        end)
+        device:connect("device-removed", function(dev)
+            remainders[dev] = nil
+        end)
+    end
+end)

plugins/10-wheel-to-button.lua

@@ -0,0 +1,64 @@
+-- SPDX-License-Identifier: MIT
+--
+-- This is an example libinput plugin
+--
+-- This plugin maps a downwards mouse wheel to a button down event and
+-- an upwards wheel movement to a button up event.
+
+-- UNCOMMENT THIS LINE TO ACTIVATE THE PLUGIN
+-- libinput:register({1})
+
+-- The button we want to press on wheel events
+local wheel_button = evdev.BTN_EXTRA
+local button_states = {}
+
+local function evdev_frame(device, frame, timestamp)
+    local events = {}
+    local modified = false
+
+    for _, v in ipairs(frame) do
+        if v.usage == evdev.REL_WHEEL then
+            -- REL_WHEEL is inverted, neg value -> down, pos value -> up
+            if v.value < 0 then
+                if not button_states[device] then
+                    table.insert(events, { usage = wheel_button, value = 1 })
+                    button_states[device] = true
+                end
+            else
+                if button_states[device] then
+                    table.insert(events, { usage = wheel_button, value = 0 })
+                    button_states[device] = false
+                end
+            end
+            modified = true
+        -- Because REL_WHEEL is no longer a wheel, the high-res
+        -- events are dropped
+        elseif v.usage == evdev.REL_WHEEL_HI_RES then
+            modified = true
+        else
+            table.insert(events, v)
+        end
+    end
+
+    if modified then
+        return events
+    else
+        return nil
+    end
+end
+
+local function device_new(device)
+    local usages = device:usages()
+    if usages[evdev.REL_WHEEL] then
+        button_states[device] = false
+        if not usages[wheel_button] then
+            device:enable_evdev_usage(wheel_button)
+        end
+        device:connect("evdev-frame", evdev_frame)
+        device:connect("device-removed", function(dev)
+            button_states[dev] = nil
+        end)
+    end
+end
+
+libinput:connect("new-evdev-device", device_new)

plugins/meson.build

@@ -0,0 +1,16 @@
+plugins = [
+	'10-example.lua',
+	'10-dwt.lua',
+	'10-logitech-mx-master-horiz-scroll.lua',
+	'10-pointer-go-faster.lua',
+	'10-pointer-go-slower.lua',
+	'10-delay-motion.lua',
+	'10-disable-feature.lua',
+	'10-copilot-key-override.lua',
+	'10-wheel-to-button.lua',
+]
+
+fs = import('fs')
+foreach plugin : plugins
+	fs.copyfile(plugin)
+endforeach

quirks/30-vendor-logitech.quirks

@@ -82,37 +82,45 @@ ModelInvertHorizontalScrolling=1
 MatchVendor=0x046D
 MatchProduct=0x4069
 ModelInvertHorizontalScrolling=1
+ModelScrollOnMiddleClick=1
 
 # MX Master 2S has a different PID on bluetooth
 [Logitech MX Master 2S Bluetooth]
 MatchVendor=0x046D
 MatchProduct=0xB019
 ModelInvertHorizontalScrolling=1
+ModelScrollOnMiddleClick=1
 
 [Logitech MX Master 3 USB]
 MatchVendor=0x046D
 MatchProduct=0x4082
 ModelInvertHorizontalScrolling=1
-ModelLogitechMXMaster3=1
+ModelScrollOnMiddleClick=1
 
 # MX Master 3 has a different PID on bluetooth
 [Logitech MX Master 3 Bluetooth]
 MatchVendor=0x046D
 MatchProduct=0xB023
 ModelInvertHorizontalScrolling=1
-ModelLogitechMXMaster3=1
+ModelScrollOnMiddleClick=1
 
 [Logitech MX Master 3S]
 MatchVendor=0x046D
 MatchProduct=0xB034
 ModelInvertHorizontalScrolling=1
-ModelLogitechMXMaster3=1
+ModelScrollOnMiddleClick=1
 
 [Logitech MX Master 3B]
 MatchVendor=0x046D
 MatchProduct=0xB028
 ModelInvertHorizontalScrolling=1
-ModelLogitechMXMaster3=1
+ModelScrollOnMiddleClick=1
+
+[Logitech MX Master 4]
+MatchVendor=0x046D
+MatchProduct=0xB042
+ModelInvertHorizontalScrolling=1
+ModelScrollOnMiddleClick=1
 
 # Don't add quirks for the Logitech Bolt Receiver:
 # MatchVendor=0x046D

quirks/30-vendor-microsoft.quirks

@@ -19,6 +19,7 @@ AttrKeyboardIntegration=internal
 MatchName=*Microsoft Surface *Cover*
 MatchDMIModalias=dmi:*svnMicrosoftCorporation:*
 AttrKeyboardIntegration=internal
+AttrEventCode=-BTN_0;
 
 [Microsoft Surface Laptop Studio Touchpad]
 MatchVendor=0x045E

quirks/30-vendor-nulea.quirks

@@ -0,0 +1,9 @@
+# Nulea M501 does not name itself as a "Trackball"
+# In USB mode, it shares a generic dongle and name with other non-trackball
+# mice. As such, trackball quirks are enabled only for bluetooth modes.
+
+[Nulea M501 Bluetooth Trackball]
+MatchBus=bluetooth
+MatchVendor=0x000E
+MatchProduct=0x3412
+ModelTrackball=1

quirks/30-vendor-oracle.quirks

@@ -1,3 +1,3 @@
 [VirtualBox mouse integration]
 MatchName=*VirtualBox mouse integration*
-ModelBouncingKeys=1
+AttrIsVirtual=1

quirks/30-vendor-qemu.quirks

@@ -1,3 +1,3 @@
 [QEMU/KVM mouse integration]
 MatchName=*spice vdagent tablet*
-ModelBouncingKeys=1
+AttrIsVirtual=1

quirks/30-vendor-razer.quirks

@@ -309,3 +309,24 @@ MatchBus=usb
 MatchVendor=0x1532
 MatchProduct=0x02B8
 AttrKeyboardIntegration=internal
+
+[RazerBlade142025 Keyboard]
+MatchUdevType=keyboard
+MatchBus=usb
+MatchVendor=0x1532
+MatchProduct=0x02C5
+AttrKeyboardIntegration=internal
+
+[RazerBlade162025 Keyboard]
+MatchUdevType=keyboard
+MatchBus=usb
+MatchVendor=0x1532
+MatchProduct=0x02C6
+AttrKeyboardIntegration=internal
+
+[RazerBlade182025 Keyboard]
+MatchUdevType=keyboard
+MatchBus=usb
+MatchVendor=0x1532
+MatchProduct=0x02C7
+AttrKeyboardIntegration=internal

quirks/30-vendor-synaptics.quirks

@@ -7,6 +7,14 @@ MatchVendor=0x0002
 MatchProduct=0x0007
 ModelSynapticsSerialTouchpad=1
 
+# "SYNA3580:00 06CB:CFD2 Touchpad": pressure touchpad mostly used in HP laptops.
+[Synaptics 06CB:CFD2 Touchpad]
+MatchBus=i2c
+MatchVendor=0x06CB
+MatchProduct=0xCFD2
+MatchUdevType=touchpad
+AttrInputProp=+INPUT_PROP_PRESSUREPAD
+
 # SYNA3602:00 0911:5288 touchpad, clickpad pretending it has a right button.
 # Integrated into several systems, including
 # Purism Librem 14v1

quirks/30-vendor-vmware.quirks

@@ -2,8 +2,8 @@
 
 [VMWare Virtual PS/2 Mouse]
 MatchName=*VirtualPS/2 VMware VMMouse*
-ModelBouncingKeys=1
+AttrIsVirtual=1
 
 [VMware VMware Virtual USB Mouse]
 MatchName=*VMware VMware Virtual USB Mouse*
-ModelBouncingKeys=1
+AttrIsVirtual=1

quirks/50-system-asus.quirks

@@ -47,3 +47,11 @@ AttrKeyboardIntegration=internal
 MatchName=AT Translated Set 2 keyboard
 MatchDMIModalias=dmi:*svnASUSTeKCOMPUTERINC.:pnROGFlowZ13GZ302EA_GZ302EA:*
 ModelTabletModeNoSuspend=1
+
+# enable "disable touchpad while typing" to work with z13 keyboard
+[Asus ROG FLow Z13 2025 keyboard]
+MatchUdevType=keyboard
+MatchBus=usb
+MatchVendor=0x0B05
+MatchProduct=0x1A30
+AttrKeyboardIntegration=internal

quirks/50-system-dell.quirks

@@ -89,6 +89,16 @@ MatchName=*AT Translated Set 2 keyboard*
 MatchDMIModalias=dmi:*:svnDellInc.:pnLatitude7275:*
 ModelTabletModeNoSuspend=1
 
+[Latitude 7285]
+MatchName=*AT Translated Set 2 keyboard*
+MatchDMIModalias=dmi:*:svnDellInc.:pnLatitude7285:*
+ModelTabletModeNoSuspend=1
+
+[Dell Pro Rugged Tablet]
+MatchName=*AT Translated Set 2 keyboard*
+MatchDMIModalias=dmi:*:svnDellInc.:pnDellProRugged*TabletRA*:*
+ModelTabletModeNoSuspend=1
+
 [Latitude 7480 Touchpad]
 MatchName=DLL07A0*
 MatchDMIModalias=dmi:**bvnDellInc.:*:pnLatitude7480*
@@ -126,13 +136,13 @@ ModelTabletModeNoSuspend=1
 MatchBus=i2c
 MatchVendor=0x27C6
 MatchProduct=0x0F60
-ModelPressurePad=1
+AttrInputProp=+INPUT_PROP_PRESSUREPAD
 
 [Dell Mayabay Touchpad]
 MatchBus=i2c
 MatchVendor=0x06CB
 MatchProduct=0xCFA0
-ModelPressurePad=1
+AttrInputProp=+INPUT_PROP_PRESSUREPAD
 
 [Dell Precision 5480]
 MatchBus=i2c
@@ -146,22 +156,58 @@ ModelTouchpadVisibleMarker=0
 MatchBus=i2c
 MatchVendor=0x06CB
 MatchProduct=0xCFF8
-ModelPressurePad=1
+AttrInputProp=+INPUT_PROP_PRESSUREPAD
 
 [Dell laptop 16 Synaptics touchpad]
 MatchBus=i2c
 MatchVendor=0x06CB
 MatchProduct=0xCFF9
-ModelPressurePad=1
+AttrInputProp=+INPUT_PROP_PRESSUREPAD
 
 [Dell laptop 14 Goodix touchpad]
 MatchBus=i2c
 MatchVendor=0x27C6
 MatchProduct=0x0F61
-ModelPressurePad=1
+AttrInputProp=+INPUT_PROP_PRESSUREPAD
 
 [Dell laptop 16 Goodix touchpad]
 MatchBus=i2c
 MatchVendor=0x27C6
 MatchProduct=0x0F62
-ModelPressurePad=1
+AttrInputProp=+INPUT_PROP_PRESSUREPAD
+
+[Dell 14 Premium DA14250 touchpad]
+MatchBus=i2c
+MatchVendor=0x0488
+MatchProduct=0x108C
+AttrInputProp=+INPUT_PROP_PRESSUREPAD
+
+[Dell 16 Premium DA16250 touchpad]
+MatchBus=i2c
+MatchVendor=0x0488
+MatchProduct=0x108D
+AttrInputProp=+INPUT_PROP_PRESSUREPAD
+
+[Dell laptop 14_1 Synaptics touchpad]
+MatchBus=i2c
+MatchVendor=0x06CB
+MatchProduct=0xD01D
+AttrInputProp=+INPUT_PROP_PRESSUREPAD
+
+[Dell laptop 16_1 Synaptics touchpad]
+MatchBus=i2c
+MatchVendor=0x06CB
+MatchProduct=0xD01A
+AttrInputProp=+INPUT_PROP_PRESSUREPAD
+
+[Dell laptop 14 Sensel touchpad]
+MatchBus=i2c
+MatchVendor=0x2C2F
+MatchProduct=0x0034
+AttrInputProp=+INPUT_PROP_PRESSUREPAD
+
+[Dell laptop 16 Sensel touchpad]
+MatchBus=i2c
+MatchVendor=0x2C2F
+MatchProduct=0x0033
+AttrInputProp=+INPUT_PROP_PRESSUREPAD

quirks/50-system-google.quirks

@@ -178,3 +178,17 @@ ModelChromebook=1
 AttrPressureRange=0:-2
 AttrThumbPressureThreshold=45
 AttrPalmPressureThreshold=0
+
+[Google Chromebook Roric]
+MatchUdevType=touchpad
+MatchName=PNP0C50:00 093A:3307 Touchpad
+MatchDMIModalias=dmi:*svnGoogle:pnRoric*
+ModelChromebook=1
+AttrPressureRange=20:10
+
+[Google Chromebook Rull]
+MatchUdevType=touchpad
+MatchName=PNP0C50:00 093A:3307 Touchpad
+MatchDMIModalias=dmi:*svnGoogle:pnRull*
+ModelChromebook=1
+AttrPressureRange=20:10

quirks/50-system-gpd.quirks

@@ -3,3 +3,9 @@ MatchName=HTIX5288:00 093A:0255 Touchpad
 MatchUdevType=touchpad
 MatchDMIModalias=dmi:*svnGPD:*pnG1619-*
 AttrEventCode=-BTN_RIGHT
+
+[GPD MicroPC 2 Touchpad]
+MatchName=ALPS0001:00 36B6:C001 Touchpad
+MatchUdevType=touchpad
+MatchDMIModalias=dmi:*svnGPD:pnG1688-08:*
+AttrInputProp=-INPUT_PROP_BUTTONPAD

quirks/50-system-honor.quirks

@@ -1,8 +1,8 @@
 # Clickpad that announces BTN_RIGHT
-# requires ModelPressurePad=1
+# requires AttrInputProp=+INPUT_PROP_PRESSUREPAD
 [HONOR MagicBook Art 14]
 MatchName=*TOPS0102*
 MatchDMIModalias=dmi:*svnHONOR:*pnMRA-XXX*
 MatchUdevType=touchpad
 AttrEventCode=-BTN_RIGHT
-ModelPressurePad=1
+AttrInputProp=+INPUT_PROP_PRESSUREPAD

quirks/50-system-hp.quirks

@@ -1,5 +1,10 @@
 # Do not edit this file, it will be overwritten on update
-#
+
+[HP Chromebook 14]
+MatchName=*Cypress APA Trackpad *cyapa*
+MatchDMIModalias=dmi:*svnHewlett-Packard*:pnFalco*
+AttrPressureRange=12:8
+
 # Claims to have double/tripletap but doesn't actually send it
 # https://bugs.freedesktop.org/show_bug.cgi?id=98538
 [HP Compaq 6910p]
@@ -14,43 +19,59 @@ MatchName=*SynPS/2 Synaptics TouchPad
 MatchDMIModalias=dmi:*svnHewlett-Packard:*pnHPCompaq8510w*
 AttrEventCode=-BTN_TOOL_DOUBLETAP;-BTN_TOOL_TRIPLETAP;
 
+[HP Elite x2 1013 G3 Keyboard]
+MatchUdevType=keyboard
+MatchBus=ps2
+MatchDMIModalias=dmi:*svnHP:pnHPElitex21013G3:*
+AttrKeyboardIntegration=external
+
+[HP Elite x2 1013 G3 Tablet Mode Switch]
+MatchName=*Intel Virtual Button*
+MatchDMIModalias=dmi:*svnHP:pnHPElitex21013G3:*
+ModelTabletModeSwitchUnreliable=1
+
+[HP Elite x2 1013 G3 Touchpad]
+MatchUdevType=touchpad
+MatchBus=usb
+MatchVendor=0x044E
+MatchProduct=0x1221
+AttrTPKComboLayout=below
+
+# The HP OmniBook Ultra Flip Laptop 14-fh0xxx's custom Intel ISH firmware
+# filters out events from its builtin keyboard and touchpad when the hinge is
+# opened little more than 180 degrees but toggles tablet-mode when it's opened
+# little less than 180 degrees.
+# Do not suspend the keyboard and touchpad to let use the device in flat
+# position and also give consistency with some keyboard keys controlled by the
+# Video Bus device (brightness down/up), the HP WMI hotkeys device (mic mute and
+# hp hubs launcher key) and the backlight getting on and off by the firmware at
+# the same time it enables disables the input.
+# This one is for the keyboard and...
+[HP OmniBook Ultra Flip Laptop 14-fh0xxx Keyboard]
+MatchBus=ps2
+MatchUdevType=keyboard
+MatchDMIModalias=dmi:*:svnHP:pnHPOmniBookUltraFlipLaptop14-fh0xxx:*
+ModelTabletModeNoSuspend=1
+
+# ...this one is for the touchpad.
+[HP OmniBook Ultra Flip Laptop 14-fh0xxx Touchpad]
+MatchBus=i2c
+MatchVendor=0x06CB
+MatchProduct=0xCFD2
+MatchUdevType=touchpad
+MatchDMIModalias=dmi:*:svnHP:pnHPOmniBookUltraFlipLaptop14-fh0xxx:*
+ModelTabletModeNoSuspend=1
+
 [HP Pavilion dmi4]
 MatchName=*SynPS/2 Synaptics TouchPad
 MatchDMIModalias=dmi:*svnHewlett-Packard:*pnHPPaviliondm4NotebookPC*
 ModelHPPavilionDM4Touchpad=1
 
-# Touchpad is a clickpad but INPUT_PROP_BUTTONPAD is not set, see
-# https://bugs.freedesktop.org/show_bug.cgi?id=97147
-[HP Stream 11]
-MatchName=SYN1EDE:00 06CB:7442*
-MatchDMIModalias=dmi:*svnHewlett-Packard:pnHPStreamNotebookPC11*
-AttrInputProp=+INPUT_PROP_BUTTONPAD
-
-# The HP stream x360's embedded-controller filters out events form its builtin
-# keyboard when in tablet-mode itself; and it has a capacitive home-button
-# (windows logo) underneath its display which also sends PS/2 key-events.
-# Do not suspend the keyboard when in tablet-mode so that the home button
-# keeps working when in tablet-mode.
-[HP Stream x360 11]
-MatchName=AT Translated Set 2 keyboard
-MatchDMIModalias=dmi:*:svnHewlett-Packard:pnHPStreamx360ConvertiblePC11:*
-ModelTabletModeNoSuspend=1
-
 [HP Spectre x360 Convertible 15-bl000]
 MatchName=AT Translated Set 2 keyboard
 MatchDMIModalias=dmi:*:svnHP:pnHPSpectrex360Convertible15-bl0XX:*
 ModelTabletModeNoSuspend=1
 
-[HP ZBook Studio G3]
-MatchName=AlpsPS/2 ALPS GlidePoint
-MatchDMIModalias=dmi:*svnHP:pnHPZBookStudioG3:*
-ModelHPZBookStudioG3=1
-
-[HP Chromebook 14]
-MatchName=*Cypress APA Trackpad *cyapa*
-MatchDMIModalias=dmi:*svnHewlett-Packard*:pnFalco*
-AttrPressureRange=12:8
-
 [HP Spectre x360 Convertible 15-bl1xx]
 MatchUdevType=touchpad
 MatchName=*SynPS/2 Synaptics TouchPad
@@ -75,26 +96,24 @@ MatchName=AT Translated Set 2 keyboard
 MatchDMIModalias=dmi:*svnHP:pnHPSpectrex360Convertible15-ch0xx:*
 ModelTabletModeNoSuspend=1
 
-[HP Elite x2 1013 G3 Tablet Mode Switch]
-MatchName=*Intel Virtual Button*
-MatchDMIModalias=dmi:*svnHP:pnHPElitex21013G3:*
-ModelTabletModeSwitchUnreliable=1
+# Touchpad is a clickpad but INPUT_PROP_BUTTONPAD is not set, see
+# https://bugs.freedesktop.org/show_bug.cgi?id=97147
+[HP Stream 11]
+MatchName=SYN1EDE:00 06CB:7442*
+MatchDMIModalias=dmi:*svnHewlett-Packard:pnHPStreamNotebookPC11*
+AttrInputProp=+INPUT_PROP_BUTTONPAD
 
-[HP Elite x2 1013 G3 Touchpad]
-MatchUdevType=touchpad
-MatchBus=usb
-MatchVendor=0x044E
-MatchProduct=0x1221
-AttrTPKComboLayout=below
+# The HP stream x360's embedded-controller filters out events form its builtin
+# keyboard when in tablet-mode itself; and it has a capacitive home-button
+# (windows logo) underneath its display which also sends PS/2 key-events.
+# Do not suspend the keyboard when in tablet-mode so that the home button
+# keeps working when in tablet-mode.
+[HP Stream x360 11]
+MatchName=AT Translated Set 2 keyboard
+MatchDMIModalias=dmi:*:svnHewlett-Packard:pnHPStreamx360ConvertiblePC11:*
+ModelTabletModeNoSuspend=1
 
-[HP Elite x2 1013 G3 Keyboard]
-MatchUdevType=keyboard
-MatchBus=ps2
-MatchDMIModalias=dmi:*svnHP:pnHPElitex21013G3:*
-AttrKeyboardIntegration=external
-
-[HP Haptics Touchpad CFD2]
-MatchBus=i2c
-MatchVendor=0x06CB
-MatchProduct=0xCFD2
-ModelPressurePad=1
+[HP ZBook Studio G3]
+MatchName=AlpsPS/2 ALPS GlidePoint
+MatchDMIModalias=dmi:*svnHP:pnHPZBookStudioG3:*
+ModelHPZBookStudioG3=1

quirks/50-system-huawei.quirks

@@ -12,10 +12,10 @@ MatchUdevType=touchpad
 MatchDMIModalias=dmi:*svnHUAWEI:*pnMRGF-XX*
 AttrEventCode=-BTN_RIGHT
 
-# 2024 model requires ModelPressurePad=1
+# 2024 model requires AttrInputProp=+INPUT_PROP_PRESSUREPAD
 [Huawei MateBook X Pro 2024 Touchpad]
 MatchName=GXTP7863:00 27C6:01E0 Touchpad
 MatchUdevType=touchpad
 MatchDMIModalias=dmi:*svnHUAWEI:*pnVGHH-XX*
 AttrEventCode=-BTN_RIGHT
-ModelPressurePad=1
+AttrInputProp=+INPUT_PROP_PRESSUREPAD

quirks/50-system-lenovo.quirks

@@ -162,7 +162,7 @@ AttrTrackpointMultiplier=1.25
 MatchBus=i2c
 MatchVendor=0x06CB
 MatchProduct=0xCE37
-ModelPressurePad=1
+AttrInputProp=+INPUT_PROP_PRESSUREPAD
 
 [Lenovo Yoga C930 Tablet]
 MatchBus=i2c
@@ -317,7 +317,7 @@ AttrKeyboardIntegration=internal
 MatchBus=i2c
 MatchVendor=0x27C6
 MatchProduct=0x01E8
-ModelPressurePad=1
+AttrInputProp=+INPUT_PROP_PRESSUREPAD
 
 # Duet 7i tablet switch activated by folding keyboard cover, or removing it.
 # We must not disable volume rocker 'keyboard'.
@@ -360,6 +360,12 @@ MatchDMIModalias=dmi:*svnLENOVO:*:pvrThinkPadE14Gen2*
 AttrPalmPressureThreshold=300
 AttrPressureRange=10:8
 
+[Lenovo ThinkPad E16 Gen 3]
+MatchUdevType=pointingstick
+MatchName=*TPPS/2 Elan TrackPoint*
+MatchDMIModalias=dmi:*svnLENOVO:*:pvrThinkPadE16Gen3*
+AttrTrackpointMultiplier=0.5
+
 # White Backlit Keyboard
 [Lenovo Ideapad Gaming 3]
 MatchUdevType=keyboard
@@ -388,14 +394,14 @@ AttrKeyboardIntegration=internal
 MatchName=*GXTP5100*
 MatchDMIModalias=dmi:*svnLENOVO:*pvrThinkBook*G7+ASP*:*
 MatchUdevType=touchpad
-ModelPressurePad=1
+AttrInputProp=+INPUT_PROP_PRESSUREPAD
 
 # The ThinkBook 14/16 G6+ IMH also has a similar issue as the G7+ mentioned above.
 [Lenovo ThinkBook G6+ IMH]
 MatchName=*GXTP5100*
 MatchDMIModalias=dmi:*svnLENOVO:*pvrThinkBook*G6+IMH*:*
 MatchUdevType=touchpad
-ModelPressurePad=1
+AttrInputProp=+INPUT_PROP_PRESSUREPAD
 
 # Lenovo Yoga Slim 7i Carbon sends bogus ABS_MT_TOOL_TYPE MT_TOOL_PALM events
 [Lenovo Yoga Slim 7i Carbon]
@@ -409,11 +415,11 @@ AttrEventCode=-ABS_MT_TOOL_TYPE
 MatchName=*GXTP5100*
 MatchDMIModalias=dmi:*svnLENOVO:*pvrThinkPadX9-15Gen1*:*
 MatchUdevType=touchpad
-ModelPressurePad=1
+AttrInputProp=+INPUT_PROP_PRESSUREPAD
 
 # The ThinkBook 14/16 G7+ IAH also has a similar issue as the ASP mentioned above.
 [Lenovo ThinkBook G7+ IAH touchpad]
 MatchName=*GXTP5100*
 MatchDMIModalias=dmi:*svnLENOVO:*pvrThinkBook*G7+IAH*:*
 MatchUdevType=touchpad
-ModelPressurePad=1
+AttrInputProp=+INPUT_PROP_PRESSUREPAD

quirks/50-system-tongfang.quirks

@@ -0,0 +1,5 @@
+[TongFang GX4 (X4SP4NAL) Touchpad]
+MatchName=UNIW0001:00 093A:0255 Touchpad
+MatchUdevType=touchpad
+MatchDMIModalias=dmi:*svnAiStone:pnX4SP4NAL:*
+AttrEventCode=-BTN_RIGHT

src/evdev-fallback.c

@@ -33,7 +33,7 @@
 static void
 fallback_keyboard_notify_key(struct fallback_dispatch *dispatch,
 			     struct evdev_device *device,
-			     uint64_t time,
+			     usec_t time,
 			     evdev_usage_t usage,
 			     enum libinput_key_state state)
 {
@@ -53,7 +53,7 @@ fallback_keyboard_notify_key(struct fallback_dispatch *dispatch,
 static void
 fallback_lid_notify_toggle(struct fallback_dispatch *dispatch,
 			   struct evdev_device *device,
-			   uint64_t time)
+			   usec_t time)
 {
 	if (dispatch->lid.is_closed ^ dispatch->lid.is_closed_client_state) {
 		switch_notify_toggle(&device->base,
@@ -67,7 +67,7 @@ fallback_lid_notify_toggle(struct fallback_dispatch *dispatch,
 void
 fallback_notify_physical_button(struct fallback_dispatch *dispatch,
 				struct evdev_device *device,
-				uint64_t time,
+				usec_t time,
 				evdev_usage_t button,
 				enum libinput_button_state state)
 {
@@ -82,20 +82,23 @@ fallback_interface_get_switch_state(struct evdev_dispatch *evdev_dispatch,
 
 	switch (sw) {
 	case LIBINPUT_SWITCH_TABLET_MODE:
+		return dispatch->tablet_mode.sw.state ? LIBINPUT_SWITCH_STATE_ON
+						      : LIBINPUT_SWITCH_STATE_OFF;
+		break;
+	case LIBINPUT_SWITCH_KEYPAD_SLIDE:
+		return dispatch->keypad_slide.sw.state ? LIBINPUT_SWITCH_STATE_ON
+						       : LIBINPUT_SWITCH_STATE_OFF;
 		break;
 	default:
 		/* Internal function only, so we can abort here */
 		abort();
 	}
-
-	return dispatch->tablet_mode.sw.state ? LIBINPUT_SWITCH_STATE_ON
-					      : LIBINPUT_SWITCH_STATE_OFF;
 }
 
 static inline bool
 post_button_scroll(struct evdev_device *device,
 		   struct device_float_coords raw,
-		   uint64_t time)
+		   usec_t time)
 {
 	if (device->scroll.method != LIBINPUT_CONFIG_SCROLL_ON_BUTTON_DOWN)
 		return false;
@@ -117,7 +120,8 @@ post_button_scroll(struct evdev_device *device,
 			filter_dispatch_scroll(device->pointer.filter,
 					       &raw,
 					       device,
-					       time);
+					       time,
+					       FILTER_SCROLL_TYPE_CONTINUOUS);
 		evdev_post_scroll(device,
 				  time,
 				  LIBINPUT_POINTER_AXIS_SOURCE_CONTINUOUS,
@@ -170,7 +174,7 @@ fallback_rotate_relative(struct fallback_dispatch *dispatch,
 static void
 fallback_flush_relative_motion(struct fallback_dispatch *dispatch,
 			       struct evdev_device *device,
-			       uint64_t time)
+			       usec_t time)
 {
 	struct libinput_device *base = &device->base;
 	struct normalized_coords accel;
@@ -204,12 +208,8 @@ fallback_flush_relative_motion(struct fallback_dispatch *dispatch,
 static void
 fallback_flush_wheels(struct fallback_dispatch *dispatch,
 		      struct evdev_device *device,
-		      uint64_t time)
+		      usec_t time)
 {
-	struct normalized_coords wheel_degrees = { 0.0, 0.0 };
-	struct discrete_coords discrete = { 0.0, 0.0 };
-	struct wheel_v120 v120 = { 0.0, 0.0 };
-
 	if (!libinput_device_has_capability(&device->base, LIBINPUT_DEVICE_CAP_POINTER))
 		return;
 
@@ -225,7 +225,8 @@ fallback_flush_wheels(struct fallback_dispatch *dispatch,
 			filter_dispatch_scroll(device->pointer.filter,
 					       &raw,
 					       device,
-					       time);
+					       time,
+					       FILTER_SCROLL_TYPE_WHEEL);
 		evdev_post_scroll(device,
 				  time,
 				  LIBINPUT_POINTER_AXIS_SOURCE_CONTINUOUS,
@@ -238,66 +239,93 @@ fallback_flush_wheels(struct fallback_dispatch *dispatch,
 		return;
 	}
 
-	if (dispatch->wheel.hi_res.y != 0) {
-		int value = dispatch->wheel.hi_res.y;
-
-		v120.y = -1 * value;
-		wheel_degrees.y =
-			-1 * value / 120.0 * device->scroll.wheel_click_angle.y;
-		evdev_notify_axis_wheel(device,
-					time,
-					bit(LIBINPUT_POINTER_AXIS_SCROLL_VERTICAL),
-					&wheel_degrees,
-					&v120);
+	/* High-resolution wheel events */
+	if (dispatch->wheel.hi_res.x != 0 || dispatch->wheel.hi_res.y != 0) {
+		const struct device_float_coords v120_unaccelerated = {
+			.x = dispatch->wheel.hi_res.x,
+			.y = -1 * dispatch->wheel.hi_res.y,
+		};
+		const struct normalized_coords v120_accelerated =
+			device->pointer.filter
+				? filter_dispatch_scroll(device->pointer.filter,
+							 &v120_unaccelerated,
+							 device,
+							 time,
+							 FILTER_SCROLL_TYPE_WHEEL)
+				: (const struct normalized_coords){
+					  .x = v120_unaccelerated.x,
+					  .y = v120_unaccelerated.y
+				  };
+		/* Truncate the fractional part when converting floating-point to
+		   integer. This is acceptable because the v120 unit maps one logical
+		   click to 120 units; values are effectively measured in 1/120 of a
+		   click, so truncation does not lose meaningful resolution. */
+		const struct wheel_v120 v120 = {
+			.x = v120_accelerated.x,
+			.y = v120_accelerated.y,
+		};
+		const struct normalized_coords wheel_degrees = {
+			.x = v120.x / 120.0 * device->scroll.wheel_click_angle.x,
+			.y = v120.y / 120.0 * device->scroll.wheel_click_angle.y,
+		};
+		if (v120.x != 0) {
+			evdev_notify_axis_wheel(
+				device,
+				time,
+				bit(LIBINPUT_POINTER_AXIS_SCROLL_HORIZONTAL),
+				&wheel_degrees,
+				&v120);
+		}
+		if (v120.y != 0) {
+			evdev_notify_axis_wheel(
+				device,
+				time,
+				bit(LIBINPUT_POINTER_AXIS_SCROLL_VERTICAL),
+				&wheel_degrees,
+				&v120);
+		}
+		dispatch->wheel.hi_res.x = 0;
 		dispatch->wheel.hi_res.y = 0;
 	}
 
-	if (dispatch->wheel.lo_res.y != 0) {
-		int value = dispatch->wheel.lo_res.y;
-
-		wheel_degrees.y = -1 * value * device->scroll.wheel_click_angle.y;
-		discrete.y = -1 * value;
-		evdev_notify_axis_legacy_wheel(
-			device,
-			time,
-			bit(LIBINPUT_POINTER_AXIS_SCROLL_VERTICAL),
-			&wheel_degrees,
-			&discrete);
-		dispatch->wheel.lo_res.y = 0;
-	}
-
-	if (dispatch->wheel.hi_res.x != 0) {
-		int value = dispatch->wheel.hi_res.x;
-
-		v120.x = value;
-		wheel_degrees.x = value / 120.0 * device->scroll.wheel_click_angle.x;
-		evdev_notify_axis_wheel(device,
-					time,
-					bit(LIBINPUT_POINTER_AXIS_SCROLL_HORIZONTAL),
-					&wheel_degrees,
-					&v120);
-		dispatch->wheel.hi_res.x = 0;
-	}
-
-	if (dispatch->wheel.lo_res.x != 0) {
-		int value = dispatch->wheel.lo_res.x;
-
-		wheel_degrees.x = value * device->scroll.wheel_click_angle.x;
-		discrete.x = value;
-		evdev_notify_axis_legacy_wheel(
-			device,
-			time,
-			bit(LIBINPUT_POINTER_AXIS_SCROLL_HORIZONTAL),
-			&wheel_degrees,
-			&discrete);
+	/* Low-resolution wheel events */
+	if (dispatch->wheel.lo_res.x != 0 || dispatch->wheel.lo_res.y != 0) {
+		/* Do not accelerate low-resolution wheel events: they use different
+		   units than high-resolution events and should not be accelerated with
+		   the same function. */
+		const struct discrete_coords discrete = {
+			.x = dispatch->wheel.lo_res.x,
+			.y = -1 * dispatch->wheel.lo_res.y,
+		};
+		const struct normalized_coords wheel_degrees = {
+			.x = discrete.x * device->scroll.wheel_click_angle.x,
+			.y = discrete.y * device->scroll.wheel_click_angle.y,
+		};
+		if (discrete.x != 0) {
+			evdev_notify_axis_legacy_wheel(
+				device,
+				time,
+				bit(LIBINPUT_POINTER_AXIS_SCROLL_HORIZONTAL),
+				&wheel_degrees,
+				&discrete);
+		}
+		if (discrete.y != 0) {
+			evdev_notify_axis_legacy_wheel(
+				device,
+				time,
+				bit(LIBINPUT_POINTER_AXIS_SCROLL_VERTICAL),
+				&wheel_degrees,
+				&discrete);
+		}
 		dispatch->wheel.lo_res.x = 0;
+		dispatch->wheel.lo_res.y = 0;
 	}
 }
 
 static void
 fallback_flush_absolute_motion(struct fallback_dispatch *dispatch,
 			       struct evdev_device *device,
-			       uint64_t time)
+			       usec_t time)
 {
 	struct libinput_device *base = &device->base;
 	struct device_coords point;
@@ -315,7 +343,7 @@ static bool
 fallback_flush_mt_down(struct fallback_dispatch *dispatch,
 		       struct evdev_device *device,
 		       int slot_idx,
-		       uint64_t time)
+		       usec_t time)
 {
 	struct libinput_device *base = &device->base;
 	struct libinput_seat *seat = base->seat;
@@ -354,7 +382,7 @@ static bool
 fallback_flush_mt_motion(struct fallback_dispatch *dispatch,
 			 struct evdev_device *device,
 			 int slot_idx,
-			 uint64_t time)
+			 usec_t time)
 {
 	struct libinput_device *base = &device->base;
 	struct device_coords point;
@@ -384,7 +412,7 @@ static bool
 fallback_flush_mt_up(struct fallback_dispatch *dispatch,
 		     struct evdev_device *device,
 		     int slot_idx,
-		     uint64_t time)
+		     usec_t time)
 {
 	struct libinput_device *base = &device->base;
 	struct libinput_seat *seat = base->seat;
@@ -412,7 +440,7 @@ static bool
 fallback_flush_mt_cancel(struct fallback_dispatch *dispatch,
 			 struct evdev_device *device,
 			 int slot_idx,
-			 uint64_t time)
+			 usec_t time)
 {
 	struct libinput_device *base = &device->base;
 	struct libinput_seat *seat = base->seat;
@@ -439,7 +467,7 @@ fallback_flush_mt_cancel(struct fallback_dispatch *dispatch,
 static bool
 fallback_flush_st_down(struct fallback_dispatch *dispatch,
 		       struct evdev_device *device,
-		       uint64_t time)
+		       usec_t time)
 {
 	struct libinput_device *base = &device->base;
 	struct libinput_seat *seat = base->seat;
@@ -475,7 +503,7 @@ fallback_flush_st_down(struct fallback_dispatch *dispatch,
 static bool
 fallback_flush_st_motion(struct fallback_dispatch *dispatch,
 			 struct evdev_device *device,
-			 uint64_t time)
+			 usec_t time)
 {
 	struct libinput_device *base = &device->base;
 	struct device_coords point;
@@ -497,7 +525,7 @@ fallback_flush_st_motion(struct fallback_dispatch *dispatch,
 static bool
 fallback_flush_st_up(struct fallback_dispatch *dispatch,
 		     struct evdev_device *device,
-		     uint64_t time)
+		     usec_t time)
 {
 	struct libinput_device *base = &device->base;
 	struct libinput_seat *seat = base->seat;
@@ -522,7 +550,7 @@ fallback_flush_st_up(struct fallback_dispatch *dispatch,
 static bool
 fallback_flush_st_cancel(struct fallback_dispatch *dispatch,
 			 struct evdev_device *device,
-			 uint64_t time)
+			 usec_t time)
 {
 	struct libinput_device *base = &device->base;
 	struct libinput_seat *seat = base->seat;
@@ -547,7 +575,7 @@ fallback_flush_st_cancel(struct fallback_dispatch *dispatch,
 static void
 fallback_process_touch_button(struct fallback_dispatch *dispatch,
 			      struct evdev_device *device,
-			      uint64_t time,
+			      usec_t time,
 			      int value)
 {
 	dispatch->pending_event |=
@@ -558,7 +586,7 @@ static inline void
 fallback_process_key(struct fallback_dispatch *dispatch,
 		     struct evdev_device *device,
 		     struct evdev_event *e,
-		     uint64_t time)
+		     usec_t time)
 {
 	/* ignore kernel key repeat */
 	if (e->value == 2)
@@ -600,7 +628,7 @@ static void
 fallback_process_touch(struct fallback_dispatch *dispatch,
 		       struct evdev_device *device,
 		       struct evdev_event *e,
-		       uint64_t time)
+		       usec_t time)
 {
 	struct mt_slot *slot = &dispatch->mt.slots[dispatch->mt.slot];
 
@@ -701,7 +729,7 @@ fallback_process_absolute_motion(struct fallback_dispatch *dispatch,
 }
 
 static void
-fallback_lid_keyboard_event(uint64_t time, struct libinput_event *event, void *data)
+fallback_lid_keyboard_event(usec_t time, struct libinput_event *event, void *data)
 {
 	struct fallback_dispatch *dispatch = fallback_dispatch(data);
 
@@ -716,8 +744,8 @@ fallback_lid_keyboard_event(uint64_t time, struct libinput_event *event, void *d
 		int rc;
 		struct input_event ev[2];
 
-		ev[0] = input_event_init(0, EV_SW, SW_LID, 0);
-		ev[1] = input_event_init(0, EV_SYN, SYN_REPORT, 0);
+		ev[0] = input_event_init(usec_from_uint64_t(0), EV_SW, SW_LID, 0);
+		ev[1] = input_event_init(usec_from_uint64_t(0), EV_SYN, SYN_REPORT, 0);
 
 		rc = write(fd, ev, sizeof(ev));
 
@@ -775,7 +803,7 @@ static inline void
 fallback_process_switch(struct fallback_dispatch *dispatch,
 			struct evdev_device *device,
 			struct evdev_event *e,
-			uint64_t time)
+			usec_t time)
 {
 	enum libinput_switch_state state;
 	bool is_closed;
@@ -808,6 +836,20 @@ fallback_process_switch(struct fallback_dispatch *dispatch,
 				     LIBINPUT_SWITCH_TABLET_MODE,
 				     state);
 		break;
+	case EVDEV_SW_KEYPAD_SLIDE:
+		if (dispatch->keypad_slide.sw.state == e->value)
+			return;
+
+		dispatch->keypad_slide.sw.state = e->value;
+		if (e->value)
+			state = LIBINPUT_SWITCH_STATE_ON;
+		else
+			state = LIBINPUT_SWITCH_STATE_OFF;
+		switch_notify_toggle(&device->base,
+				     time,
+				     LIBINPUT_SWITCH_KEYPAD_SLIDE,
+				     state);
+		break;
 	default:
 		break;
 	}
@@ -816,7 +858,7 @@ fallback_process_switch(struct fallback_dispatch *dispatch,
 static inline bool
 fallback_reject_relative(struct evdev_device *device,
 			 const struct evdev_event *e,
-			 uint64_t time)
+			 usec_t time)
 {
 	switch (evdev_usage_enum(e->usage)) {
 	case EVDEV_REL_X:
@@ -851,7 +893,7 @@ static inline void
 fallback_process_relative(struct fallback_dispatch *dispatch,
 			  struct evdev_device *device,
 			  struct evdev_event *e,
-			  uint64_t time)
+			  usec_t time)
 {
 	if (fallback_reject_relative(device, e, time))
 		return;
@@ -890,7 +932,7 @@ static inline void
 fallback_process_absolute(struct fallback_dispatch *dispatch,
 			  struct evdev_device *device,
 			  struct evdev_event *e,
-			  uint64_t time)
+			  usec_t time)
 {
 	if (device->is_mt) {
 		fallback_process_touch(dispatch, device, e, time);
@@ -934,7 +976,7 @@ fallback_arbitrate_touch(struct fallback_dispatch *dispatch, struct mt_slot *slo
 static inline bool
 fallback_flush_mt_events(struct fallback_dispatch *dispatch,
 			 struct evdev_device *device,
-			 uint64_t time)
+			 usec_t time)
 {
 	bool sent = false;
 
@@ -1005,7 +1047,7 @@ fallback_flush_mt_events(struct fallback_dispatch *dispatch,
 static void
 fallback_handle_state(struct fallback_dispatch *dispatch,
 		      struct evdev_device *device,
-		      uint64_t time)
+		      usec_t time)
 {
 	bool need_touch_frame = false;
 
@@ -1073,7 +1115,7 @@ static void
 fallback_interface_process_event(struct evdev_dispatch *evdev_dispatch,
 				 struct evdev_device *device,
 				 struct evdev_event *event,
-				 uint64_t time)
+				 usec_t time)
 {
 	struct fallback_dispatch *dispatch = fallback_dispatch(evdev_dispatch);
 	static bool warned = false;
@@ -1113,7 +1155,7 @@ static void
 fallback_interface_process(struct evdev_dispatch *dispatch,
 			   struct evdev_device *device,
 			   struct evdev_frame *frame,
-			   uint64_t time)
+			   usec_t time)
 {
 	size_t nevents;
 	struct evdev_event *events = evdev_frame_get_events(frame, &nevents);
@@ -1127,7 +1169,7 @@ static void
 cancel_touches(struct fallback_dispatch *dispatch,
 	       struct evdev_device *device,
 	       const struct device_coord_rect *rect,
-	       uint64_t time)
+	       usec_t time)
 {
 	unsigned int idx;
 	bool need_frame = false;
@@ -1158,7 +1200,7 @@ cancel_touches(struct fallback_dispatch *dispatch,
 static void
 release_pressed_keys(struct fallback_dispatch *dispatch,
 		     struct evdev_device *device,
-		     uint64_t time)
+		     usec_t time)
 {
 	for (evdev_usage_t usage = evdev_usage_from(EVDEV_KEY_RESERVED);
 	     evdev_usage_le(usage, EVDEV_KEY_MAX);
@@ -1208,9 +1250,9 @@ fallback_return_to_neutral_state(struct fallback_dispatch *dispatch,
 				 struct evdev_device *device)
 {
 	struct libinput *libinput = evdev_libinput_context(device);
-	uint64_t time;
+	usec_t time = libinput_now(libinput);
 
-	if ((time = libinput_now(libinput)) == 0)
+	if (usec_is_zero(time))
 		return;
 
 	cancel_touches(dispatch, device, NULL, time);
@@ -1250,7 +1292,7 @@ fallback_interface_sync_initial_state(struct evdev_device *device,
 				      struct evdev_dispatch *evdev_dispatch)
 {
 	struct fallback_dispatch *dispatch = fallback_dispatch(evdev_dispatch);
-	uint64_t time = libinput_now(evdev_libinput_context(device));
+	usec_t time = libinput_now(evdev_libinput_context(device));
 
 	if (device->tags & EVDEV_TAG_LID_SWITCH) {
 		struct libevdev *evdev = device->evdev;
@@ -1278,13 +1320,20 @@ fallback_interface_sync_initial_state(struct evdev_device *device,
 				     LIBINPUT_SWITCH_TABLET_MODE,
 				     LIBINPUT_SWITCH_STATE_ON);
 	}
+
+	if (dispatch->keypad_slide.sw.state) {
+		switch_notify_toggle(&device->base,
+				     time,
+				     LIBINPUT_SWITCH_KEYPAD_SLIDE,
+				     LIBINPUT_SWITCH_STATE_ON);
+	}
 }
 
 static void
 fallback_interface_update_rect(struct evdev_dispatch *evdev_dispatch,
 			       struct evdev_device *device,
 			       const struct phys_rect *phys_rect,
-			       uint64_t time)
+			       usec_t time)
 {
 	struct fallback_dispatch *dispatch = fallback_dispatch(evdev_dispatch);
 	struct device_coord_rect rect;
@@ -1303,7 +1352,7 @@ fallback_interface_toggle_touch(struct evdev_dispatch *evdev_dispatch,
 				struct evdev_device *device,
 				enum evdev_arbitration_state which,
 				const struct phys_rect *phys_rect,
-				uint64_t time)
+				usec_t time)
 {
 	struct fallback_dispatch *dispatch = fallback_dispatch(evdev_dispatch);
 	struct device_coord_rect rect = { 0 };
@@ -1322,7 +1371,7 @@ fallback_interface_toggle_touch(struct evdev_dispatch *evdev_dispatch,
 		 * arbitration by just a little bit so that any touch in
 		 * event is caught as palm touch. */
 		libinput_timer_set(&dispatch->arbitration.arbitration_timer,
-				   time + ms2us(90));
+				   usec_add_millis(time, 90));
 		state = "not-active";
 		break;
 	case ARBITRATION_IGNORE_RECT:
@@ -1416,9 +1465,7 @@ fallback_suspend(struct fallback_dispatch *dispatch, struct evdev_device *device
 }
 
 static void
-fallback_tablet_mode_switch_event(uint64_t time,
-				  struct libinput_event *event,
-				  void *data)
+fallback_tablet_mode_switch_event(usec_t time, struct libinput_event *event, void *data)
 {
 	struct fallback_dispatch *dispatch = data;
 	struct evdev_device *device = dispatch->device;
@@ -1708,11 +1755,16 @@ fallback_dispatch_init_switch(struct fallback_dispatch *dispatch,
 		dispatch->tablet_mode.sw.state = val;
 	}
 
+	if (device->tags & EVDEV_TAG_KEYPAD_SLIDE_SWITCH) {
+		val = libevdev_get_event_value(device->evdev, EV_SW, SW_KEYPAD_SLIDE);
+		dispatch->keypad_slide.sw.state = val;
+	}
+
 	libinput_device_init_event_listener(&dispatch->tablet_mode.other.listener);
 }
 
 static void
-fallback_arbitration_timeout(uint64_t now, void *data)
+fallback_arbitration_timeout(usec_t now, void *data)
 {
 	struct fallback_dispatch *dispatch = data;
 

src/evdev-fallback.h

@@ -116,6 +116,13 @@ struct fallback_dispatch {
 		} other;
 	} tablet_mode;
 
+	struct {
+		/* Switch */
+		struct {
+			int state;
+		} sw;
+	} keypad_slide;
+
 	/* Bitmask of pressed keys used to ignore initial release events from
 	 * the kernel. */
 	unsigned long hw_key_mask[NLONGS(KEY_CNT)];
@@ -213,11 +220,11 @@ get_key_down_count(struct evdev_device *device, evdev_usage_t usage)
 }
 
 void
-fallback_debounce_handle_state(struct fallback_dispatch *dispatch, uint64_t time);
+fallback_debounce_handle_state(struct fallback_dispatch *dispatch, usec_t time);
 void
 fallback_notify_physical_button(struct fallback_dispatch *dispatch,
 				struct evdev_device *device,
-				uint64_t time,
+				usec_t time,
 				evdev_usage_t button,
 				enum libinput_button_state state);
 

src/evdev-frame.h

@@ -29,6 +29,7 @@
 #include <linux/input.h>
 #include <stdbool.h>
 
+#include "util-bits.h"
 #include "util-input-event.h"
 #include "util-mem.h"
 #include "util-newtype.h"
@@ -49,6 +50,10 @@ enum evdev_usage {
 
 	EVDEV_KEY_RESERVED = _evbit(EV_KEY, KEY_RESERVED),
 	EVDEV_KEY_ESC = _evbit(EV_KEY, KEY_ESC),
+	EVDEV_KEY_A = _evbit(EV_KEY, KEY_A),
+	EVDEV_KEY_CAPSLOCK = _evbit(EV_KEY, KEY_CAPSLOCK),
+	EVDEV_KEY_KP7 = _evbit(EV_KEY, KEY_KP7),
+	EVDEV_KEY_KPDOT = _evbit(EV_KEY, KEY_KPDOT),
 	EVDEV_KEY_MICMUTE = _evbit(EV_KEY, KEY_MICMUTE),
 	EVDEV_KEY_OK = _evbit(EV_KEY, KEY_OK),
 	EVDEV_KEY_LIGHTS_TOGGLE = _evbit(EV_KEY, KEY_LIGHTS_TOGGLE),
@@ -134,6 +139,7 @@ enum evdev_usage {
 
 	EVDEV_SW_LID = _evbit(EV_SW, SW_LID),
 	EVDEV_SW_TABLET_MODE = _evbit(EV_SW, SW_TABLET_MODE),
+	EVDEV_SW_KEYPAD_SLIDE = _evbit(EV_SW, SW_KEYPAD_SLIDE),
 	EVDEV_SW_MAX = _evbit(EV_SW, SW_MAX),
 
 	EVDEV_MSC_SCAN = _evbit(EV_MSC, MSC_SCAN),
@@ -150,6 +156,110 @@ enum evdev_usage {
  */
 DECLARE_NEWTYPE(evdev_usage, uint32_t);
 
+static inline const char *
+evdev_usage_name(evdev_usage_t usage)
+{
+	switch (evdev_usage_as_uint32_t(usage)) {
+	CASE_RETURN_STRING(EVDEV_SYN_REPORT);
+
+	CASE_RETURN_STRING(EVDEV_KEY_RESERVED);
+	CASE_RETURN_STRING(EVDEV_KEY_ESC);
+	CASE_RETURN_STRING(EVDEV_KEY_MICMUTE);
+	CASE_RETURN_STRING(EVDEV_KEY_OK);
+	CASE_RETURN_STRING(EVDEV_KEY_LIGHTS_TOGGLE);
+	CASE_RETURN_STRING(EVDEV_KEY_ALS_TOGGLE);
+	CASE_RETURN_STRING(EVDEV_KEY_MAX);
+
+	CASE_RETURN_STRING(EVDEV_BTN_LEFT);
+	CASE_RETURN_STRING(EVDEV_BTN_RIGHT);
+	CASE_RETURN_STRING(EVDEV_BTN_MIDDLE);
+	CASE_RETURN_STRING(EVDEV_BTN_SIDE);
+	CASE_RETURN_STRING(EVDEV_BTN_EXTRA);
+	CASE_RETURN_STRING(EVDEV_BTN_FORWARD);
+	CASE_RETURN_STRING(EVDEV_BTN_BACK);
+	CASE_RETURN_STRING(EVDEV_BTN_TASK);
+
+	CASE_RETURN_STRING(EVDEV_BTN_JOYSTICK);
+
+	CASE_RETURN_STRING(EVDEV_BTN_0);
+	CASE_RETURN_STRING(EVDEV_BTN_1);
+	CASE_RETURN_STRING(EVDEV_BTN_2);
+
+	CASE_RETURN_STRING(EVDEV_BTN_STYLUS);
+	CASE_RETURN_STRING(EVDEV_BTN_STYLUS2);
+	CASE_RETURN_STRING(EVDEV_BTN_STYLUS3);
+
+	CASE_RETURN_STRING(EVDEV_BTN_TOUCH);
+	CASE_RETURN_STRING(EVDEV_BTN_TOOL_PEN);
+	CASE_RETURN_STRING(EVDEV_BTN_TOOL_RUBBER);
+	CASE_RETURN_STRING(EVDEV_BTN_TOOL_BRUSH);
+	CASE_RETURN_STRING(EVDEV_BTN_TOOL_PENCIL);
+	CASE_RETURN_STRING(EVDEV_BTN_TOOL_AIRBRUSH);
+	CASE_RETURN_STRING(EVDEV_BTN_TOOL_MOUSE);
+	CASE_RETURN_STRING(EVDEV_BTN_TOOL_LENS);
+	CASE_RETURN_STRING(EVDEV_BTN_TOOL_QUINTTAP);
+	CASE_RETURN_STRING(EVDEV_BTN_TOOL_DOUBLETAP);
+	CASE_RETURN_STRING(EVDEV_BTN_TOOL_TRIPLETAP);
+	CASE_RETURN_STRING(EVDEV_BTN_TOOL_QUADTAP);
+	CASE_RETURN_STRING(EVDEV_BTN_TOOL_FINGER);
+	/* CASE_RETURN_STRING(EVDEV_BTN_MISC); - alias of BTN_0 */
+	/* CASE_RETURN_STRING(EVDEV_BTN_DIGI); - alias of BTN_TOOL_PEN */
+	CASE_RETURN_STRING(EVDEV_BTN_WHEEL);
+	CASE_RETURN_STRING(EVDEV_BTN_GEAR_UP);
+	CASE_RETURN_STRING(EVDEV_BTN_DPAD_UP);
+	CASE_RETURN_STRING(EVDEV_BTN_DPAD_RIGHT);
+	CASE_RETURN_STRING(EVDEV_BTN_TRIGGER_HAPPY);
+	CASE_RETURN_STRING(EVDEV_BTN_TRIGGER_HAPPY40);
+
+	CASE_RETURN_STRING(EVDEV_REL_X);
+	CASE_RETURN_STRING(EVDEV_REL_Y);
+	CASE_RETURN_STRING(EVDEV_REL_WHEEL);
+	CASE_RETURN_STRING(EVDEV_REL_WHEEL_HI_RES);
+	CASE_RETURN_STRING(EVDEV_REL_HWHEEL);
+	CASE_RETURN_STRING(EVDEV_REL_HWHEEL_HI_RES);
+	CASE_RETURN_STRING(EVDEV_REL_DIAL);
+	CASE_RETURN_STRING(EVDEV_REL_MAX);
+
+	CASE_RETURN_STRING(EVDEV_ABS_X);
+	CASE_RETURN_STRING(EVDEV_ABS_Y);
+	CASE_RETURN_STRING(EVDEV_ABS_Z);
+	CASE_RETURN_STRING(EVDEV_ABS_RX);
+	CASE_RETURN_STRING(EVDEV_ABS_RY);
+	CASE_RETURN_STRING(EVDEV_ABS_RZ);
+	CASE_RETURN_STRING(EVDEV_ABS_PRESSURE);
+	CASE_RETURN_STRING(EVDEV_ABS_DISTANCE);
+	CASE_RETURN_STRING(EVDEV_ABS_THROTTLE);
+	CASE_RETURN_STRING(EVDEV_ABS_RUDDER);
+	CASE_RETURN_STRING(EVDEV_ABS_WHEEL);
+	CASE_RETURN_STRING(EVDEV_ABS_MISC);
+	CASE_RETURN_STRING(EVDEV_ABS_TILT_X);
+	CASE_RETURN_STRING(EVDEV_ABS_TILT_Y);
+
+	CASE_RETURN_STRING(EVDEV_ABS_MT_SLOT);
+	CASE_RETURN_STRING(EVDEV_ABS_MT_POSITION_X);
+	CASE_RETURN_STRING(EVDEV_ABS_MT_POSITION_Y);
+	CASE_RETURN_STRING(EVDEV_ABS_MT_TOOL_TYPE);
+	CASE_RETURN_STRING(EVDEV_ABS_MT_TRACKING_ID);
+	CASE_RETURN_STRING(EVDEV_ABS_MT_TOUCH_MAJOR);
+	CASE_RETURN_STRING(EVDEV_ABS_MT_TOUCH_MINOR);
+	CASE_RETURN_STRING(EVDEV_ABS_MT_ORIENTATION);
+	CASE_RETURN_STRING(EVDEV_ABS_MT_PRESSURE);
+	CASE_RETURN_STRING(EVDEV_ABS_MT_DISTANCE);
+	CASE_RETURN_STRING(EVDEV_ABS_MAX);
+
+	CASE_RETURN_STRING(EVDEV_SW_LID);
+	CASE_RETURN_STRING(EVDEV_SW_TABLET_MODE);
+	CASE_RETURN_STRING(EVDEV_SW_KEYPAD_SLIDE);
+	CASE_RETURN_STRING(EVDEV_SW_MAX);
+
+	CASE_RETURN_STRING(EVDEV_MSC_SCAN);
+	CASE_RETURN_STRING(EVDEV_MSC_SERIAL);
+	CASE_RETURN_STRING(EVDEV_MSC_TIMESTAMP);
+	}
+
+	return NULL;
+}
+
 static inline evdev_usage_t
 evdev_usage_from(enum evdev_usage usage)
 {
@@ -284,9 +394,9 @@ evdev_event_get_code_name(const struct evdev_event *e)
 }
 
 static inline struct input_event
-evdev_event_to_input_event(const struct evdev_event *e, uint64_t time)
+evdev_event_to_input_event(const struct evdev_event *e, usec_t time)
 {
-	struct timeval tv = us2tv(time);
+	struct timeval tv = usec_to_timeval(time);
 	return (struct input_event){
 		.type = evdev_event_type(e),
 		.code = evdev_event_code(e),
@@ -297,7 +407,7 @@ evdev_event_to_input_event(const struct evdev_event *e, uint64_t time)
 }
 
 static inline struct evdev_event
-evdev_event_from_input_event(const struct input_event *e, uint64_t *time)
+evdev_event_from_input_event(const struct input_event *e, usec_t *time)
 {
 	if (time)
 		*time = input_event_time(e);
@@ -324,7 +434,7 @@ struct evdev_frame {
 	int refcount;
 	size_t max_size;
 	size_t count;
-	uint64_t time;
+	usec_t time;
 	struct evdev_event events[];
 };
 
@@ -377,12 +487,12 @@ evdev_frame_get_events(struct evdev_frame *frame, size_t *nevents)
  * Set the timestamp for all events in this event frame.
  */
 static inline void
-evdev_frame_set_time(struct evdev_frame *frame, uint64_t time)
+evdev_frame_set_time(struct evdev_frame *frame, usec_t time)
 {
 	frame->time = time;
 }
 
-static inline uint64_t
+static inline usec_t
 evdev_frame_get_time(const struct evdev_frame *frame)
 {
 	return frame->time;
@@ -401,7 +511,7 @@ static inline struct evdev_frame *
 evdev_frame_new(size_t max_size)
 {
 	struct evdev_frame *frame =
-		zalloc(max_size * sizeof(sizeof(*frame->events)) + sizeof(*frame));
+		zalloc(max_size * sizeof(*frame->events) + sizeof(*frame));
 
 	frame->refcount = 1;
 	frame->max_size = max_size;
@@ -410,21 +520,6 @@ evdev_frame_new(size_t max_size)
 	return frame;
 }
 
-static inline struct evdev_frame *
-evdev_frame_new_on_stack(size_t max_size)
-{
-	assert(max_size <= 64);
-	struct evdev_frame *frame =
-		alloca(max_size * sizeof(*frame->events) + sizeof(*frame));
-
-	frame->refcount = 1;
-	frame->max_size = max_size;
-	frame->count = 1; /* SYN_REPORT is always there */
-	memset(frame->events, 0, max_size * sizeof(*frame->events));
-
-	return frame;
-}
-
 /**
  * Append events to the event frame. nevents must be larger than 0
  * and specifies the number of elements in events. If any events in
@@ -497,7 +592,7 @@ evdev_frame_append_input_event(struct evdev_frame *frame,
 {
 	struct evdev_event e = evdev_event_from_input_event(event, NULL);
 	if (evdev_usage_as_uint32_t(e.usage) == EVDEV_SYN_REPORT) {
-		uint64_t time = input_event_time(event);
+		usec_t time = input_event_time(event);
 		evdev_frame_set_time(frame, time);
 	}
 	return evdev_frame_append(frame, &e, 1);
@@ -545,3 +640,121 @@ evdev_frame_clone(struct evdev_frame *frame)
 
 	return clone;
 }
+
+struct evdev_mask {
+	bitmask_t ev;
+	bitmask_t rel;
+	bitmask_t sw;
+	infmask_t key; /* < BTN_MISC */
+	infmask_t btn; /* >= BTN_MISC */
+	infmask_t abs;
+};
+
+static_assert(sizeof(bitmask_t) * 8 >= EV_MAX, "bitmask size too small");
+static_assert(sizeof(bitmask_t) * 8 >= EV_REL, "bitmask size too small");
+static_assert(sizeof(bitmask_t) * 8 >= EV_SW, "bitmask size too small");
+
+static inline void
+evdev_mask_reset(struct evdev_mask *mask)
+{
+	mask->ev = bitmask_new();
+	mask->rel = bitmask_new();
+	mask->sw = bitmask_new();
+	infmask_reset(&mask->key);
+	infmask_reset(&mask->btn);
+	infmask_reset(&mask->abs);
+}
+
+static inline struct evdev_mask *
+evdev_mask_new(void)
+{
+	struct evdev_mask *mask = zalloc(sizeof(*mask));
+	evdev_mask_reset(mask);
+	return mask;
+}
+
+static inline void
+evdev_mask_destroy(struct evdev_mask *mask)
+{
+	if (mask) {
+		evdev_mask_reset(mask);
+		free(mask);
+	}
+}
+
+DEFINE_DESTROY_CLEANUP_FUNC(evdev_mask);
+
+static inline void
+evdev_mask_set_usage(struct evdev_mask *mask, evdev_usage_t usage)
+{
+	unsigned int type = evdev_usage_type(usage);
+	unsigned int code = evdev_usage_code(usage);
+
+	if (type >= EV_MAX)
+		return;
+
+	bitmask_set_bit(&mask->ev, type);
+
+	switch (type) {
+	case EV_ABS:
+		if (code <= ABS_MAX)
+			infmask_set_bit(&mask->abs, code);
+		break;
+	case EV_KEY:
+		if (code < BTN_MISC)
+			infmask_set_bit(&mask->key, code);
+		else if (code <= KEY_MAX)
+			infmask_set_bit(&mask->btn, code - BTN_MISC);
+		break;
+	case EV_REL:
+		if (code <= REL_MAX)
+			bitmask_set_bit(&mask->rel, code);
+		break;
+	case EV_SW:
+		if (code <= SW_MAX)
+			bitmask_set_bit(&mask->sw, code);
+		break;
+	}
+}
+
+static inline void
+evdev_mask_set_enum(struct evdev_mask *mask, enum evdev_usage usage)
+{
+	evdev_mask_set_usage(mask, evdev_usage_from(usage));
+}
+
+static inline bool
+evdev_mask_is_set(const struct evdev_mask *mask, evdev_usage_t usage)
+{
+	unsigned int type = evdev_usage_type(usage);
+	unsigned int code = evdev_usage_code(usage);
+
+	if (type >= EV_MAX)
+		return false;
+
+	if (!bitmask_bit_is_set(mask->ev, type))
+		return false;
+
+	bool isset = false;
+	switch (type) {
+	case EV_ABS:
+		isset = infmask_bit_is_set(&mask->abs, code);
+		break;
+	case EV_KEY:
+		if (code < BTN_MISC)
+			isset = infmask_bit_is_set(&mask->key, code);
+		else
+			isset = infmask_bit_is_set(&mask->btn, code - BTN_MISC);
+		break;
+	case EV_REL:
+		isset = bitmask_bit_is_set(mask->rel, code);
+		break;
+	case EV_SW:
+		isset = bitmask_bit_is_set(mask->sw, code);
+		break;
+	default:
+		break;
+	}
+
+	return isset;
+}

src/evdev-middle-button.c

@@ -27,7 +27,7 @@
 
 #include "evdev.h"
 
-#define MIDDLEBUTTON_TIMEOUT ms2us(50)
+#define MIDDLEBUTTON_TIMEOUT usec_from_millis(50)
 
 /*****************************************
  * BEFORE YOU EDIT THIS FILE, look at the state diagram in
@@ -88,9 +88,10 @@ middlebutton_state_error(struct evdev_device *device,
 }
 
 static void
-middlebutton_timer_set(struct evdev_device *device, uint64_t now)
+middlebutton_timer_set(struct evdev_device *device, usec_t now)
 {
-	libinput_timer_set(&device->middlebutton.timer, now + MIDDLEBUTTON_TIMEOUT);
+	libinput_timer_set(&device->middlebutton.timer,
+			   usec_add(now, MIDDLEBUTTON_TIMEOUT));
 }
 
 static void
@@ -102,7 +103,7 @@ middlebutton_timer_cancel(struct evdev_device *device)
 static inline void
 middlebutton_set_state(struct evdev_device *device,
 		       enum evdev_middlebutton_state state,
-		       uint64_t now)
+		       usec_t now)
 {
 	switch (state) {
 	case MIDDLEBUTTON_LEFT_DOWN:
@@ -127,7 +128,7 @@ middlebutton_set_state(struct evdev_device *device,
 
 static void
 middlebutton_post_event(struct evdev_device *device,
-			uint64_t now,
+			usec_t now,
 			evdev_usage_t button,
 			enum libinput_button_state state)
 {
@@ -136,7 +137,7 @@ middlebutton_post_event(struct evdev_device *device,
 
 static int
 evdev_middlebutton_idle_handle_event(struct evdev_device *device,
-				     uint64_t time,
+				     usec_t time,
 				     enum evdev_middlebutton_event event)
 {
 	switch (event) {
@@ -162,7 +163,7 @@ evdev_middlebutton_idle_handle_event(struct evdev_device *device,
 
 static int
 evdev_middlebutton_ldown_handle_event(struct evdev_device *device,
-				      uint64_t time,
+				      usec_t time,
 				      enum evdev_middlebutton_event event)
 {
 	switch (event) {
@@ -214,7 +215,7 @@ evdev_middlebutton_ldown_handle_event(struct evdev_device *device,
 
 static int
 evdev_middlebutton_rdown_handle_event(struct evdev_device *device,
-				      uint64_t time,
+				      usec_t time,
 				      enum evdev_middlebutton_event event)
 {
 	switch (event) {
@@ -266,7 +267,7 @@ evdev_middlebutton_rdown_handle_event(struct evdev_device *device,
 
 static int
 evdev_middlebutton_middle_handle_event(struct evdev_device *device,
-				       uint64_t time,
+				       usec_t time,
 				       enum evdev_middlebutton_event event)
 {
 	switch (event) {
@@ -308,7 +309,7 @@ evdev_middlebutton_middle_handle_event(struct evdev_device *device,
 
 static int
 evdev_middlebutton_lup_pending_handle_event(struct evdev_device *device,
-					    uint64_t time,
+					    usec_t time,
 					    enum evdev_middlebutton_event event)
 {
 	switch (event) {
@@ -344,7 +345,7 @@ evdev_middlebutton_lup_pending_handle_event(struct evdev_device *device,
 
 static int
 evdev_middlebutton_rup_pending_handle_event(struct evdev_device *device,
-					    uint64_t time,
+					    usec_t time,
 					    enum evdev_middlebutton_event event)
 {
 	switch (event) {
@@ -380,7 +381,7 @@ evdev_middlebutton_rup_pending_handle_event(struct evdev_device *device,
 
 static int
 evdev_middlebutton_passthrough_handle_event(struct evdev_device *device,
-					    uint64_t time,
+					    usec_t time,
 					    enum evdev_middlebutton_event event)
 {
 	switch (event) {
@@ -403,7 +404,7 @@ evdev_middlebutton_passthrough_handle_event(struct evdev_device *device,
 
 static int
 evdev_middlebutton_ignore_lr_handle_event(struct evdev_device *device,
-					  uint64_t time,
+					  usec_t time,
 					  enum evdev_middlebutton_event event)
 {
 	switch (event) {
@@ -432,7 +433,7 @@ evdev_middlebutton_ignore_lr_handle_event(struct evdev_device *device,
 
 static int
 evdev_middlebutton_ignore_l_handle_event(struct evdev_device *device,
-					 uint64_t time,
+					 usec_t time,
 					 enum evdev_middlebutton_event event)
 {
 	switch (event) {
@@ -457,7 +458,7 @@ evdev_middlebutton_ignore_l_handle_event(struct evdev_device *device,
 }
 static int
 evdev_middlebutton_ignore_r_handle_event(struct evdev_device *device,
-					 uint64_t time,
+					 usec_t time,
 					 enum evdev_middlebutton_event event)
 {
 	switch (event) {
@@ -483,7 +484,7 @@ evdev_middlebutton_ignore_r_handle_event(struct evdev_device *device,
 
 static int
 evdev_middlebutton_handle_event(struct evdev_device *device,
-				uint64_t time,
+				usec_t time,
 				enum evdev_middlebutton_event event)
 {
 	int rc = 0;
@@ -553,7 +554,7 @@ evdev_middlebutton_apply_config(struct evdev_device *device)
 
 bool
 evdev_middlebutton_filter_button(struct evdev_device *device,
-				 uint64_t time,
+				 usec_t time,
 				 evdev_usage_t button,
 				 enum libinput_button_state state)
 {
@@ -616,7 +617,7 @@ evdev_middlebutton_filter_button(struct evdev_device *device,
 }
 
 static void
-evdev_middlebutton_handle_timeout(uint64_t now, void *data)
+evdev_middlebutton_handle_timeout(usec_t now, void *data)
 {
 	struct evdev_device *device = evdev_device(data);
 

src/evdev-mt-touchpad-buttons.c

@@ -32,8 +32,8 @@
 #include "evdev-mt-touchpad.h"
 #include "linux/input.h"
 
-#define DEFAULT_BUTTON_ENTER_TIMEOUT ms2us(100)
-#define DEFAULT_BUTTON_LEAVE_TIMEOUT ms2us(300)
+#define DEFAULT_BUTTON_ENTER_TIMEOUT usec_from_millis(100)
+#define DEFAULT_BUTTON_LEAVE_TIMEOUT usec_from_millis(300)
 
 /*****************************************
  * BEFORE YOU EDIT THIS FILE, look at the state diagram in
@@ -121,15 +121,17 @@ is_inside_top_middle_area(const struct tp_dispatch *tp, const struct tp_touch *t
 }
 
 static void
-tp_button_set_enter_timer(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
+tp_button_set_enter_timer(struct tp_dispatch *tp, struct tp_touch *t, usec_t time)
 {
-	libinput_timer_set(&t->button.timer, time + DEFAULT_BUTTON_ENTER_TIMEOUT);
+	libinput_timer_set(&t->button.timer,
+			   usec_add(time, DEFAULT_BUTTON_ENTER_TIMEOUT));
 }
 
 static void
-tp_button_set_leave_timer(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
+tp_button_set_leave_timer(struct tp_dispatch *tp, struct tp_touch *t, usec_t time)
 {
-	libinput_timer_set(&t->button.timer, time + DEFAULT_BUTTON_LEAVE_TIMEOUT);
+	libinput_timer_set(&t->button.timer,
+			   usec_add(time, DEFAULT_BUTTON_LEAVE_TIMEOUT));
 }
 
 /*
@@ -141,7 +143,7 @@ tp_button_set_state(struct tp_dispatch *tp,
 		    struct tp_touch *t,
 		    enum button_state new_state,
 		    enum button_event event,
-		    uint64_t time)
+		    usec_t time)
 {
 	libinput_timer_cancel(&t->button.timer);
 
@@ -176,7 +178,7 @@ static void
 tp_button_none_handle_event(struct tp_dispatch *tp,
 			    struct tp_touch *t,
 			    enum button_event event,
-			    uint64_t time)
+			    usec_t time)
 {
 	switch (event) {
 	case BUTTON_EVENT_IN_BOTTOM_R:
@@ -206,7 +208,7 @@ static void
 tp_button_area_handle_event(struct tp_dispatch *tp,
 			    struct tp_touch *t,
 			    enum button_event event,
-			    uint64_t time)
+			    usec_t time)
 {
 	switch (event) {
 	case BUTTON_EVENT_IN_BOTTOM_R:
@@ -233,23 +235,22 @@ tp_button_area_handle_event(struct tp_dispatch *tp,
  * that triggered this call).
  */
 static inline void
-tp_button_release_other_bottom_touches(struct tp_dispatch *tp,
-				       uint64_t other_start_time)
+tp_button_release_other_bottom_touches(struct tp_dispatch *tp, usec_t other_start_time)
 {
 	struct tp_touch *t;
 
 	tp_for_each_touch(tp, t) {
-		uint64_t tdelta;
+		usec_t tdelta;
 
 		if (t->button.state != BUTTON_STATE_BOTTOM || t->button.has_moved)
 			continue;
 
-		if (other_start_time > t->button.initial_time)
-			tdelta = other_start_time - t->button.initial_time;
+		if (usec_cmp(other_start_time, t->button.initial_time) > 0)
+			tdelta = usec_delta(other_start_time, t->button.initial_time);
 		else
-			tdelta = t->button.initial_time - other_start_time;
+			tdelta = usec_delta(t->button.initial_time, other_start_time);
 
-		if (tdelta > ms2us(80))
+		if (usec_cmp(tdelta, usec_from_millis(80)) > 0)
 			continue;
 
 		t->button.has_moved = true;
@@ -260,7 +261,7 @@ static void
 tp_button_bottom_handle_event(struct tp_dispatch *tp,
 			      struct tp_touch *t,
 			      enum button_event event,
-			      uint64_t time)
+			      usec_t time)
 {
 	switch (event) {
 	case BUTTON_EVENT_IN_BOTTOM_R:
@@ -296,7 +297,7 @@ static void
 tp_button_top_handle_event(struct tp_dispatch *tp,
 			   struct tp_touch *t,
 			   enum button_event event,
-			   uint64_t time)
+			   usec_t time)
 {
 	switch (event) {
 	case BUTTON_EVENT_IN_BOTTOM_R:
@@ -327,7 +328,7 @@ static void
 tp_button_top_new_handle_event(struct tp_dispatch *tp,
 			       struct tp_touch *t,
 			       enum button_event event,
-			       uint64_t time)
+			       usec_t time)
 {
 	switch (event) {
 	case BUTTON_EVENT_IN_BOTTOM_R:
@@ -362,7 +363,7 @@ static void
 tp_button_top_to_ignore_handle_event(struct tp_dispatch *tp,
 				     struct tp_touch *t,
 				     enum button_event event,
-				     uint64_t time)
+				     usec_t time)
 {
 	switch (event) {
 	case BUTTON_EVENT_IN_TOP_R:
@@ -394,7 +395,7 @@ static void
 tp_button_ignore_handle_event(struct tp_dispatch *tp,
 			      struct tp_touch *t,
 			      enum button_event event,
-			      uint64_t time)
+			      usec_t time)
 {
 	switch (event) {
 	case BUTTON_EVENT_IN_BOTTOM_R:
@@ -422,7 +423,7 @@ static void
 tp_button_handle_event(struct tp_dispatch *tp,
 		       struct tp_touch *t,
 		       enum button_event event,
-		       uint64_t time)
+		       usec_t time)
 {
 	enum button_state current = t->button.state;
 
@@ -496,7 +497,7 @@ tp_button_check_for_movement(struct tp_dispatch *tp, struct tp_touch *t)
 }
 
 void
-tp_button_handle_state(struct tp_dispatch *tp, uint64_t time)
+tp_button_handle_state(struct tp_dispatch *tp, usec_t time)
 {
 	struct tp_touch *t;
 
@@ -547,7 +548,7 @@ tp_button_handle_state(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_button_handle_timeout(uint64_t now, void *data)
+tp_button_handle_timeout(usec_t now, void *data)
 {
 	struct tp_touch *t = data;
 
@@ -555,7 +556,7 @@ tp_button_handle_timeout(uint64_t now, void *data)
 }
 
 void
-tp_process_button(struct tp_dispatch *tp, const struct evdev_event *e, uint64_t time)
+tp_process_button(struct tp_dispatch *tp, const struct evdev_event *e, usec_t time)
 {
 	uint32_t mask = bit(evdev_usage_enum(e->usage) - EVDEV_BTN_LEFT);
 
@@ -577,7 +578,7 @@ tp_process_button(struct tp_dispatch *tp, const struct evdev_event *e, uint64_t
 }
 
 void
-tp_release_all_buttons(struct tp_dispatch *tp, uint64_t time)
+tp_release_all_buttons(struct tp_dispatch *tp, usec_t time)
 {
 	if (tp->buttons.state) {
 		tp->buttons.state = 0;
@@ -1032,7 +1033,7 @@ tp_remove_buttons(struct tp_dispatch *tp)
 }
 
 static int
-tp_post_physical_buttons(struct tp_dispatch *tp, uint64_t time)
+tp_post_physical_buttons(struct tp_dispatch *tp, usec_t time)
 {
 	uint32_t current, old, button;
 
@@ -1180,7 +1181,7 @@ out:
 
 static int
 tp_notify_clickpadbutton(struct tp_dispatch *tp,
-			 uint64_t time,
+			 usec_t time,
 			 evdev_usage_t button,
 			 uint32_t is_topbutton,
 			 enum libinput_button_state state)
@@ -1227,10 +1228,10 @@ tp_notify_clickpadbutton(struct tp_dispatch *tp,
 }
 
 static int
-tp_post_clickpadbutton_buttons(struct tp_dispatch *tp, uint64_t time)
+tp_post_clickpadbutton_buttons(struct tp_dispatch *tp, usec_t time)
 {
 	uint32_t current, old, is_top;
-	evdev_usage_t button = evdev_usage_from_uint32_t(0);
+	evdev_usage_t button;
 	enum libinput_button_state state;
 	enum { AREA = 0x01, LEFT = 0x02, MIDDLE = 0x04, RIGHT = 0x08 };
 	bool want_left_handed = true;
@@ -1332,7 +1333,7 @@ tp_post_clickpadbutton_buttons(struct tp_dispatch *tp, uint64_t time)
 }
 
 int
-tp_post_button_events(struct tp_dispatch *tp, uint64_t time)
+tp_post_button_events(struct tp_dispatch *tp, usec_t time)
 {
 	if (tp->buttons.is_clickpad ||
 	    tp->device->model_flags & EVDEV_MODEL_APPLE_TOUCHPAD_ONEBUTTON)

src/evdev-mt-touchpad-edge-scroll.c

@@ -87,9 +87,9 @@ tp_touch_get_edge(const struct tp_dispatch *tp, const struct tp_touch *t)
 }
 
 static inline void
-tp_edge_scroll_set_timer(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
+tp_edge_scroll_set_timer(struct tp_dispatch *tp, struct tp_touch *t, usec_t time)
 {
-	const int DEFAULT_SCROLL_LOCK_TIMEOUT = ms2us(300);
+	const usec_t DEFAULT_SCROLL_LOCK_TIMEOUT = usec_from_millis(300);
 	/* if we use software buttons, we disable timeout-based
 	 * edge scrolling. A finger resting on the button areas is
 	 * likely there to trigger a button event.
@@ -97,14 +97,15 @@ tp_edge_scroll_set_timer(struct tp_dispatch *tp, struct tp_touch *t, uint64_t ti
 	if (tp->buttons.click_method == LIBINPUT_CONFIG_CLICK_METHOD_BUTTON_AREAS)
 		return;
 
-	libinput_timer_set(&t->scroll.timer, time + DEFAULT_SCROLL_LOCK_TIMEOUT);
+	libinput_timer_set(&t->scroll.timer,
+			   usec_add(time, DEFAULT_SCROLL_LOCK_TIMEOUT));
 }
 
 static void
 tp_edge_scroll_set_state(struct tp_dispatch *tp,
 			 struct tp_touch *t,
 			 enum tp_edge_scroll_touch_state state,
-			 uint64_t time)
+			 usec_t time)
 {
 	libinput_timer_cancel(&t->scroll.timer);
 
@@ -131,7 +132,7 @@ static void
 tp_edge_scroll_handle_none(struct tp_dispatch *tp,
 			   struct tp_touch *t,
 			   enum scroll_event event,
-			   uint64_t time)
+			   usec_t time)
 {
 	switch (event) {
 	case SCROLL_EVENT_TOUCH:
@@ -164,7 +165,7 @@ static void
 tp_edge_scroll_handle_edge_new(struct tp_dispatch *tp,
 			       struct tp_touch *t,
 			       enum scroll_event event,
-			       uint64_t time)
+			       usec_t time)
 {
 	switch (event) {
 	case SCROLL_EVENT_TOUCH:
@@ -196,7 +197,7 @@ static void
 tp_edge_scroll_handle_edge(struct tp_dispatch *tp,
 			   struct tp_touch *t,
 			   enum scroll_event event,
-			   uint64_t time)
+			   usec_t time)
 {
 	switch (event) {
 	case SCROLL_EVENT_TOUCH:
@@ -230,7 +231,7 @@ static void
 tp_edge_scroll_handle_area(struct tp_dispatch *tp,
 			   struct tp_touch *t,
 			   enum scroll_event event,
-			   uint64_t time)
+			   usec_t time)
 {
 	switch (event) {
 	case SCROLL_EVENT_TOUCH:
@@ -252,7 +253,7 @@ static void
 tp_edge_scroll_handle_event(struct tp_dispatch *tp,
 			    struct tp_touch *t,
 			    enum scroll_event event,
-			    uint64_t time)
+			    usec_t time)
 {
 	enum tp_edge_scroll_touch_state current = t->scroll.edge_state;
 
@@ -281,7 +282,7 @@ tp_edge_scroll_handle_event(struct tp_dispatch *tp,
 }
 
 static void
-tp_edge_scroll_handle_timeout(uint64_t now, void *data)
+tp_edge_scroll_handle_timeout(usec_t now, void *data)
 {
 	struct tp_touch *t = data;
 
@@ -349,7 +350,7 @@ tp_remove_edge_scroll(struct tp_dispatch *tp)
 }
 
 void
-tp_edge_scroll_handle_state(struct tp_dispatch *tp, uint64_t time)
+tp_edge_scroll_handle_state(struct tp_dispatch *tp, usec_t time)
 {
 	struct tp_touch *t;
 
@@ -393,7 +394,7 @@ tp_edge_scroll_handle_state(struct tp_dispatch *tp, uint64_t time)
 }
 
 int
-tp_edge_scroll_post_events(struct tp_dispatch *tp, uint64_t time)
+tp_edge_scroll_post_events(struct tp_dispatch *tp, usec_t time)
 {
 	struct evdev_device *device = tp->device;
 	struct tp_touch *t;
@@ -478,7 +479,7 @@ tp_edge_scroll_post_events(struct tp_dispatch *tp, uint64_t time)
 }
 
 void
-tp_edge_scroll_stop_events(struct tp_dispatch *tp, uint64_t time)
+tp_edge_scroll_stop_events(struct tp_dispatch *tp, usec_t time)
 {
 	struct evdev_device *device = tp->device;
 	struct tp_touch *t;

src/evdev-mt-touchpad-gestures.c

@@ -33,11 +33,11 @@ enum gesture_cancelled {
 	CANCEL_GESTURE = 1,
 };
 
-#define QUICK_GESTURE_HOLD_TIMEOUT ms2us(40)
-#define DEFAULT_GESTURE_HOLD_TIMEOUT ms2us(180)
-#define DEFAULT_GESTURE_SWITCH_TIMEOUT ms2us(100)
-#define DEFAULT_GESTURE_SWIPE_TIMEOUT ms2us(150)
-#define DEFAULT_GESTURE_PINCH_TIMEOUT ms2us(300)
+#define QUICK_GESTURE_HOLD_TIMEOUT usec_from_millis(40)
+#define DEFAULT_GESTURE_HOLD_TIMEOUT usec_from_millis(180)
+#define DEFAULT_GESTURE_SWITCH_TIMEOUT usec_from_millis(100)
+#define DEFAULT_GESTURE_SWIPE_TIMEOUT usec_from_millis(150)
+#define DEFAULT_GESTURE_PINCH_TIMEOUT usec_from_millis(300)
 
 #define HOLD_AND_MOTION_THRESHOLD 0.5 /* mm */
 #define PINCH_DISAMBIGUATION_MOVE_THRESHOLD 1.5 /* mm */
@@ -152,10 +152,10 @@ tp_gesture_init_scroll(struct tp_dispatch *tp)
 	struct phys_coords zero = { 0.0, 0.0 };
 	tp->scroll.active.h = false;
 	tp->scroll.active.v = false;
-	tp->scroll.duration.h = 0;
-	tp->scroll.duration.v = 0;
+	tp->scroll.duration.h = usec_from_uint64_t(0);
+	tp->scroll.duration.v = usec_from_uint64_t(0);
 	tp->scroll.vector = zero;
-	tp->scroll.time_prev = 0;
+	tp->scroll.time_prev = usec_from_uint64_t(0);
 }
 
 static inline struct device_float_coords
@@ -185,7 +185,7 @@ tp_get_raw_pointer_motion(struct tp_dispatch *tp)
 }
 
 static bool
-tp_has_pending_pointer_motion(struct tp_dispatch *tp, uint64_t time)
+tp_has_pending_pointer_motion(struct tp_dispatch *tp, usec_t time)
 {
 	struct device_float_coords raw;
 
@@ -202,7 +202,7 @@ tp_has_pending_pointer_motion(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_gesture_post_pointer_motion(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_post_pointer_motion(struct tp_dispatch *tp, usec_t time)
 {
 	struct device_float_coords raw;
 	struct normalized_coords delta;
@@ -316,12 +316,12 @@ tp_gesture_init_pinch(struct tp_dispatch *tp)
 }
 
 static inline void
-tp_gesture_init_3fg_drag(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_init_3fg_drag(struct tp_dispatch *tp, usec_t time)
 {
 }
 
 static inline void
-tp_gesture_stop_3fg_drag(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_stop_3fg_drag(struct tp_dispatch *tp, usec_t time)
 {
 }
 
@@ -344,24 +344,27 @@ static void
 tp_gesture_apply_scroll_constraints(struct tp_dispatch *tp,
 				    struct device_float_coords *raw,
 				    struct normalized_coords *delta,
-				    uint64_t time)
+				    usec_t time)
 {
-	uint64_t tdelta = 0;
+	usec_t tdelta = usec_from_millis(0);
 	struct phys_coords delta_mm, vector;
 	double vector_decay, vector_length, slope;
 
-	const uint64_t ACTIVE_THRESHOLD = ms2us(100), INACTIVE_THRESHOLD = ms2us(50),
-		       EVENT_TIMEOUT = ms2us(100);
+	const usec_t ACTIVE_THRESHOLD = usec_from_millis(100),
+		     INACTIVE_THRESHOLD = usec_from_millis(50),
+		     EVENT_TIMEOUT = usec_from_millis(100);
 
 	/* Both axes active == true means free scrolling is enabled */
 	if (tp->scroll.active.h && tp->scroll.active.v)
 		return;
 
 	/* Determine time delta since last movement event */
-	if (tp->scroll.time_prev != 0)
-		tdelta = time - tp->scroll.time_prev;
-	if (tdelta > EVENT_TIMEOUT)
-		tdelta = 0;
+	if (!usec_is_zero(tp->scroll.time_prev)) {
+		usec_t diff = usec_delta(time, tp->scroll.time_prev);
+		if (usec_cmp(diff, EVENT_TIMEOUT) <= 0)
+			tdelta = diff;
+	}
+
 	tp->scroll.time_prev = time;
 
 	/* Delta since last movement event in mm */
@@ -372,11 +375,13 @@ tp_gesture_apply_scroll_constraints(struct tp_dispatch *tp,
 	 * EVENT_TIMEOUT of 100, vector_decay = (0.97)^tdelta. This linear
 	 * approximation allows easier tweaking of EVENT_TIMEOUT and is faster.
 	 */
-	if (tdelta > 0) {
+	if (usec_gt(tdelta, 0)) {
+		uint64_t delta = usec_as_uint64_t(tdelta);
 		double recent, later;
-		recent = ((EVENT_TIMEOUT / 2.0) - tdelta) / (EVENT_TIMEOUT / 2.0);
-		later = (EVENT_TIMEOUT - tdelta) / (EVENT_TIMEOUT * 2.0);
-		vector_decay = tdelta <= (0.33 * EVENT_TIMEOUT) ? recent : later;
+		uint64_t timeout_us = usec_as_uint64_t(EVENT_TIMEOUT);
+		recent = ((timeout_us / 2.0) - delta) / (timeout_us / 2.0);
+		later = (timeout_us - delta) / (timeout_us * 2.0);
+		vector_decay = delta <= (0.33 * timeout_us) ? recent : later;
 	} else {
 		vector_decay = 0.0;
 	}
@@ -407,36 +412,38 @@ tp_gesture_apply_scroll_constraints(struct tp_dispatch *tp,
 	const double MIN_VECTOR = 0.15;
 
 	if (slope >= DEGREE_30 && vector_length > MIN_VECTOR) {
-		tp->scroll.duration.v += tdelta;
-		if (tp->scroll.duration.v > ACTIVE_THRESHOLD)
+		tp->scroll.duration.v = usec_add(tp->scroll.duration.v, tdelta);
+		if (usec_cmp(tp->scroll.duration.v, ACTIVE_THRESHOLD) > 0)
 			tp->scroll.duration.v = ACTIVE_THRESHOLD;
 		if (slope >= DEGREE_75) {
-			if (tp->scroll.duration.h > tdelta)
-				tp->scroll.duration.h -= tdelta;
+			if (usec_cmp(tp->scroll.duration.h, tdelta) > 0)
+				tp->scroll.duration.h =
+					usec_sub(tp->scroll.duration.h, tdelta);
 			else
-				tp->scroll.duration.h = 0;
+				tp->scroll.duration.h = usec_from_uint64_t(0);
 		}
 	}
 	if (slope < DEGREE_60 && vector_length > MIN_VECTOR) {
-		tp->scroll.duration.h += tdelta;
-		if (tp->scroll.duration.h > ACTIVE_THRESHOLD)
+		tp->scroll.duration.h = usec_add(tp->scroll.duration.h, tdelta);
+		if (usec_cmp(tp->scroll.duration.h, ACTIVE_THRESHOLD) > 0)
 			tp->scroll.duration.h = ACTIVE_THRESHOLD;
 		if (slope < DEGREE_15) {
-			if (tp->scroll.duration.v > tdelta)
-				tp->scroll.duration.v -= tdelta;
+			if (usec_cmp(tp->scroll.duration.v, tdelta) > 0)
+				tp->scroll.duration.v =
+					usec_sub(tp->scroll.duration.v, tdelta);
 			else
-				tp->scroll.duration.v = 0;
+				tp->scroll.duration.v = usec_from_uint64_t(0);
 		}
 	}
 
-	if (tp->scroll.duration.h == ACTIVE_THRESHOLD) {
+	if (usec_cmp(tp->scroll.duration.h, ACTIVE_THRESHOLD) == 0) {
 		tp->scroll.active.h = true;
-		if (tp->scroll.duration.v < INACTIVE_THRESHOLD)
+		if (usec_cmp(tp->scroll.duration.v, INACTIVE_THRESHOLD) < 0)
 			tp->scroll.active.v = false;
 	}
-	if (tp->scroll.duration.v == ACTIVE_THRESHOLD) {
+	if (usec_cmp(tp->scroll.duration.v, ACTIVE_THRESHOLD) == 0) {
 		tp->scroll.active.v = true;
-		if (tp->scroll.duration.h < INACTIVE_THRESHOLD)
+		if (usec_cmp(tp->scroll.duration.h, INACTIVE_THRESHOLD) < 0)
 			tp->scroll.active.h = false;
 	}
 
@@ -519,9 +526,9 @@ tp_gesture_use_hold_timer(struct tp_dispatch *tp)
 }
 
 static void
-tp_gesture_set_hold_timer(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_set_hold_timer(struct tp_dispatch *tp, usec_t time)
 {
-	uint64_t timeout;
+	usec_t timeout;
 
 	if (!tp->gesture.hold_enabled)
 		return;
@@ -530,14 +537,14 @@ tp_gesture_set_hold_timer(struct tp_dispatch *tp, uint64_t time)
 		timeout = tp_gesture_is_quick_hold(tp) ? QUICK_GESTURE_HOLD_TIMEOUT
 						       : DEFAULT_GESTURE_HOLD_TIMEOUT;
 
-		libinput_timer_set(&tp->gesture.hold_timer, time + timeout);
+		libinput_timer_set(&tp->gesture.hold_timer, usec_add(time, timeout));
 	}
 }
 
 static void
 tp_gesture_handle_event_on_state_none(struct tp_dispatch *tp,
 				      enum gesture_event event,
-				      uint64_t time)
+				      usec_t time)
 {
 	switch (event) {
 	case GESTURE_EVENT_RESET:
@@ -581,7 +588,7 @@ tp_gesture_handle_event_on_state_none(struct tp_dispatch *tp,
 static void
 tp_gesture_handle_event_on_state_unknown(struct tp_dispatch *tp,
 					 enum gesture_event event,
-					 uint64_t time)
+					 usec_t time)
 {
 	switch (event) {
 	case GESTURE_EVENT_RESET:
@@ -634,7 +641,7 @@ tp_gesture_handle_event_on_state_unknown(struct tp_dispatch *tp,
 static void
 tp_gesture_handle_event_on_state_hold(struct tp_dispatch *tp,
 				      enum gesture_event event,
-				      uint64_t time)
+				      usec_t time)
 {
 	switch (event) {
 	case GESTURE_EVENT_RESET:
@@ -692,7 +699,7 @@ tp_gesture_handle_event_on_state_hold(struct tp_dispatch *tp,
 static void
 tp_gesture_handle_event_on_state_hold_and_motion(struct tp_dispatch *tp,
 						 enum gesture_event event,
-						 uint64_t time)
+						 usec_t time)
 {
 	switch (event) {
 	case GESTURE_EVENT_RESET:
@@ -733,7 +740,7 @@ tp_gesture_handle_event_on_state_hold_and_motion(struct tp_dispatch *tp,
 static void
 tp_gesture_handle_event_on_state_pointer_motion(struct tp_dispatch *tp,
 						enum gesture_event event,
-						uint64_t time)
+						usec_t time)
 {
 	struct tp_touch *first;
 	struct phys_coords first_moved;
@@ -779,7 +786,7 @@ tp_gesture_handle_event_on_state_pointer_motion(struct tp_dispatch *tp,
 static void
 tp_gesture_handle_event_on_state_scroll_start(struct tp_dispatch *tp,
 					      enum gesture_event event,
-					      uint64_t time)
+					      usec_t time)
 {
 	switch (event) {
 	case GESTURE_EVENT_RESET:
@@ -812,7 +819,7 @@ tp_gesture_handle_event_on_state_scroll_start(struct tp_dispatch *tp,
 static void
 tp_gesture_handle_event_on_state_scroll(struct tp_dispatch *tp,
 					enum gesture_event event,
-					uint64_t time)
+					usec_t time)
 {
 	switch (event) {
 	case GESTURE_EVENT_RESET:
@@ -847,7 +854,7 @@ tp_gesture_handle_event_on_state_scroll(struct tp_dispatch *tp,
 static void
 tp_gesture_handle_event_on_state_pinch_start(struct tp_dispatch *tp,
 					     enum gesture_event event,
-					     uint64_t time)
+					     usec_t time)
 {
 	switch (event) {
 	case GESTURE_EVENT_RESET:
@@ -875,7 +882,7 @@ tp_gesture_handle_event_on_state_pinch_start(struct tp_dispatch *tp,
 static void
 tp_gesture_handle_event_on_state_pinch(struct tp_dispatch *tp,
 				       enum gesture_event event,
-				       uint64_t time)
+				       usec_t time)
 {
 	switch (event) {
 	case GESTURE_EVENT_RESET:
@@ -914,7 +921,7 @@ tp_gesture_handle_event_on_state_pinch(struct tp_dispatch *tp,
 static void
 tp_gesture_handle_event_on_state_swipe_start(struct tp_dispatch *tp,
 					     enum gesture_event event,
-					     uint64_t time)
+					     usec_t time)
 {
 	switch (event) {
 	case GESTURE_EVENT_RESET:
@@ -943,7 +950,7 @@ tp_gesture_handle_event_on_state_swipe_start(struct tp_dispatch *tp,
 static void
 tp_gesture_handle_event_on_state_swipe(struct tp_dispatch *tp,
 				       enum gesture_event event,
-				       uint64_t time)
+				       usec_t time)
 {
 	switch (event) {
 	case GESTURE_EVENT_RESET:
@@ -981,7 +988,7 @@ tp_gesture_handle_event_on_state_swipe(struct tp_dispatch *tp,
 static void
 tp_gesture_handle_event_on_state_3fg_drag_start(struct tp_dispatch *tp,
 						enum gesture_event event,
-						uint64_t time)
+						usec_t time)
 {
 	switch (event) {
 	case GESTURE_EVENT_RESET:
@@ -1008,16 +1015,16 @@ tp_gesture_handle_event_on_state_3fg_drag_start(struct tp_dispatch *tp,
 }
 
 static void
-tp_gesture_set_3fg_drag_timer(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_set_3fg_drag_timer(struct tp_dispatch *tp, usec_t time)
 {
 	tp->gesture.drag_3fg_release_time = time;
-	libinput_timer_set(&tp->gesture.drag_3fg_timer, time + ms2us(700));
+	libinput_timer_set(&tp->gesture.drag_3fg_timer, usec_add_millis(time, 700));
 }
 
 static void
 tp_gesture_handle_event_on_state_3fg_drag(struct tp_dispatch *tp,
 					  enum gesture_event event,
-					  uint64_t time)
+					  usec_t time)
 {
 	switch (event) {
 	case GESTURE_EVENT_RESET:
@@ -1065,7 +1072,7 @@ tp_gesture_handle_event_on_state_3fg_drag(struct tp_dispatch *tp,
 static void
 tp_gesture_handle_event_on_state_3fg_drag_released(struct tp_dispatch *tp,
 						   enum gesture_event event,
-						   uint64_t time)
+						   usec_t time)
 {
 	switch (event) {
 	case GESTURE_EVENT_RESET:
@@ -1125,7 +1132,7 @@ tp_gesture_handle_event_on_state_3fg_drag_released(struct tp_dispatch *tp,
 }
 
 static void
-tp_gesture_handle_event(struct tp_dispatch *tp, enum gesture_event event, uint64_t time)
+tp_gesture_handle_event(struct tp_dispatch *tp, enum gesture_event event, usec_t time)
 {
 	enum tp_gesture_state oldstate;
 
@@ -1187,7 +1194,7 @@ tp_gesture_handle_event(struct tp_dispatch *tp, enum gesture_event event, uint64
 }
 
 static void
-tp_gesture_hold_timeout(uint64_t now, void *data)
+tp_gesture_hold_timeout(usec_t now, void *data)
 {
 	struct tp_dispatch *tp = data;
 
@@ -1198,7 +1205,7 @@ tp_gesture_hold_timeout(uint64_t now, void *data)
 }
 
 void
-tp_gesture_tap_timeout(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_tap_timeout(struct tp_dispatch *tp, usec_t time)
 {
 	if (!tp->gesture.hold_enabled)
 		return;
@@ -1208,7 +1215,7 @@ tp_gesture_tap_timeout(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_gesture_3fg_drag_timeout(uint64_t now, void *data)
+tp_gesture_3fg_drag_timeout(usec_t now, void *data)
 {
 	struct tp_dispatch *tp = data;
 
@@ -1216,7 +1223,7 @@ tp_gesture_3fg_drag_timeout(uint64_t now, void *data)
 }
 
 static void
-tp_gesture_detect_motion_gestures(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_detect_motion_gestures(struct tp_dispatch *tp, usec_t time)
 {
 	struct tp_touch *first = tp->gesture.touches[0],
 			*second = tp->gesture.touches[1], *thumb;
@@ -1281,7 +1288,9 @@ tp_gesture_detect_motion_gestures(struct tp_dispatch *tp, uint64_t time)
 	/* If both touches are within 7mm vertically and 40mm horizontally
 	 * past the timeout, assume scroll/swipe */
 	if ((!tp->gesture.enabled || (distance_mm.x < 40.0 && distance_mm.y < 7.0)) &&
-	    time > (tp->gesture.initial_time + DEFAULT_GESTURE_SWIPE_TIMEOUT)) {
+	    usec_cmp(time,
+		     usec_add(tp->gesture.initial_time,
+			      DEFAULT_GESTURE_SWIPE_TIMEOUT)) > 0) {
 		if (tp->gesture.finger_count == 2)
 			tp_gesture_handle_event(tp, GESTURE_EVENT_SCROLL_START, time);
 		else if (tp->drag_3fg.nfingers == tp->gesture.finger_count)
@@ -1416,7 +1425,7 @@ tp_gesture_is_pinch(struct tp_dispatch *tp)
 }
 
 static void
-tp_gesture_handle_state_none(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_handle_state_none(struct tp_dispatch *tp, usec_t time)
 {
 	struct tp_touch *first, *second;
 	struct tp_touch *touches[4];
@@ -1485,23 +1494,21 @@ tp_gesture_handle_state_none(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_gesture_handle_state_unknown(struct tp_dispatch *tp,
-				uint64_t time,
-				bool ignore_motion)
+tp_gesture_handle_state_unknown(struct tp_dispatch *tp, usec_t time, bool ignore_motion)
 {
 	if (!ignore_motion)
 		tp_gesture_detect_motion_gestures(tp, time);
 }
 
 static void
-tp_gesture_handle_state_hold(struct tp_dispatch *tp, uint64_t time, bool ignore_motion)
+tp_gesture_handle_state_hold(struct tp_dispatch *tp, usec_t time, bool ignore_motion)
 {
 	if (!ignore_motion)
 		tp_gesture_detect_motion_gestures(tp, time);
 }
 
 static void
-tp_gesture_handle_state_hold_and_pointer_motion(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_handle_state_hold_and_pointer_motion(struct tp_dispatch *tp, usec_t time)
 {
 	if (tp->queued & TOUCHPAD_EVENT_MOTION)
 		tp_gesture_post_pointer_motion(tp, time);
@@ -1510,14 +1517,14 @@ tp_gesture_handle_state_hold_and_pointer_motion(struct tp_dispatch *tp, uint64_t
 }
 
 static void
-tp_gesture_handle_state_pointer_motion(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_handle_state_pointer_motion(struct tp_dispatch *tp, usec_t time)
 {
 	if (tp->queued & TOUCHPAD_EVENT_MOTION)
 		tp_gesture_post_pointer_motion(tp, time);
 }
 
 static void
-tp_gesture_handle_state_scroll_start(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_handle_state_scroll_start(struct tp_dispatch *tp, usec_t time)
 {
 	struct device_float_coords raw;
 	struct normalized_coords delta;
@@ -1528,7 +1535,9 @@ tp_gesture_handle_state_scroll_start(struct tp_dispatch *tp, uint64_t time)
 	/* We may confuse a pinch for a scroll initially,
 	 * allow ourselves to correct our guess.
 	 */
-	if (time < (tp->gesture.initial_time + DEFAULT_GESTURE_PINCH_TIMEOUT) &&
+	if (usec_cmp(time,
+		     usec_add(tp->gesture.initial_time,
+			      DEFAULT_GESTURE_PINCH_TIMEOUT)) < 0 &&
 	    tp_gesture_is_pinch(tp)) {
 		tp_gesture_handle_event(tp, GESTURE_EVENT_PINCH_START, time);
 		return;
@@ -1547,7 +1556,7 @@ tp_gesture_handle_state_scroll_start(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_gesture_handle_state_scroll(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_handle_state_scroll(struct tp_dispatch *tp, usec_t time)
 {
 	struct device_float_coords raw;
 	struct normalized_coords delta;
@@ -1558,7 +1567,9 @@ tp_gesture_handle_state_scroll(struct tp_dispatch *tp, uint64_t time)
 	/* We may confuse a pinch for a scroll initially,
 	 * allow ourselves to correct our guess.
 	 */
-	if (time < (tp->gesture.initial_time + DEFAULT_GESTURE_PINCH_TIMEOUT) &&
+	if (usec_cmp(time,
+		     usec_add(tp->gesture.initial_time,
+			      DEFAULT_GESTURE_PINCH_TIMEOUT)) < 0 &&
 	    tp_gesture_is_pinch(tp)) {
 		tp_gesture_handle_event(tp, GESTURE_EVENT_PINCH_START, time);
 		return;
@@ -1580,7 +1591,7 @@ tp_gesture_handle_state_scroll(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_gesture_handle_state_swipe_start(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_handle_state_swipe_start(struct tp_dispatch *tp, usec_t time)
 {
 	struct device_float_coords raw;
 	struct normalized_coords delta;
@@ -1601,7 +1612,7 @@ tp_gesture_handle_state_swipe_start(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_gesture_handle_state_swipe(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_handle_state_swipe(struct tp_dispatch *tp, usec_t time)
 {
 	struct device_float_coords raw;
 	struct normalized_coords delta, unaccel;
@@ -1621,7 +1632,7 @@ tp_gesture_handle_state_swipe(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_gesture_handle_state_pinch_start(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_handle_state_pinch_start(struct tp_dispatch *tp, usec_t time)
 {
 	const struct normalized_coords zero = { 0.0, 0.0 };
 	double angle, angle_delta, distance, scale;
@@ -1662,7 +1673,7 @@ tp_gesture_handle_state_pinch_start(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_gesture_handle_state_pinch(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_handle_state_pinch(struct tp_dispatch *tp, usec_t time)
 {
 	double angle, angle_delta, distance, scale;
 	struct device_float_coords center, fdelta;
@@ -1702,7 +1713,7 @@ tp_gesture_handle_state_pinch(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_gesture_handle_state_3fg_drag_start(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_handle_state_3fg_drag_start(struct tp_dispatch *tp, usec_t time)
 {
 	evdev_pointer_notify_button(tp->device,
 				    time,
@@ -1713,7 +1724,7 @@ tp_gesture_handle_state_3fg_drag_start(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_gesture_handle_state_3fg_drag(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_handle_state_3fg_drag(struct tp_dispatch *tp, usec_t time)
 {
 	if (tp->queued & TOUCHPAD_EVENT_MOTION)
 		tp_gesture_post_pointer_motion(tp, time);
@@ -1721,14 +1732,14 @@ tp_gesture_handle_state_3fg_drag(struct tp_dispatch *tp, uint64_t time)
 
 static void
 tp_gesture_handle_state_3fg_drag_released(struct tp_dispatch *tp,
-					  uint64_t time,
+					  usec_t time,
 					  bool ignore_motion)
 {
 	tp_gesture_detect_motion_gestures(tp, time);
 }
 
 static void
-tp_gesture_handle_state(struct tp_dispatch *tp, uint64_t time, bool ignore_motion)
+tp_gesture_handle_state(struct tp_dispatch *tp, usec_t time, bool ignore_motion)
 {
 	enum tp_gesture_state oldstate = tp->gesture.state;
 	enum tp_gesture_state transitions[16] = { 0 };
@@ -1839,7 +1850,7 @@ tp_gesture_thumb_moved(struct tp_dispatch *tp)
 }
 
 void
-tp_gesture_post_events(struct tp_dispatch *tp, uint64_t time, bool ignore_motion)
+tp_gesture_post_events(struct tp_dispatch *tp, usec_t time, bool ignore_motion)
 {
 	if (tp->gesture.finger_count == 0)
 		return;
@@ -1867,7 +1878,9 @@ tp_gesture_post_events(struct tp_dispatch *tp, uint64_t time, bool ignore_motion
 	/* When pinching, the thumb tends to move slower than the finger,
 	 * so we may suppress it too early. Give it some time to move.
 	 */
-	if (time < (tp->gesture.initial_time + DEFAULT_GESTURE_PINCH_TIMEOUT) &&
+	if (usec_cmp(time,
+		     usec_add(tp->gesture.initial_time,
+			      DEFAULT_GESTURE_PINCH_TIMEOUT)) < 0 &&
 	    tp_gesture_thumb_moved(tp))
 		tp_thumb_reset(tp);
 
@@ -1876,7 +1889,7 @@ tp_gesture_post_events(struct tp_dispatch *tp, uint64_t time, bool ignore_motion
 }
 
 void
-tp_gesture_stop_twofinger_scroll(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_stop_twofinger_scroll(struct tp_dispatch *tp, usec_t time)
 {
 	if (tp->scroll.method != LIBINPUT_CONFIG_SCROLL_2FG)
 		return;
@@ -1885,7 +1898,7 @@ tp_gesture_stop_twofinger_scroll(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_gesture_end(struct tp_dispatch *tp, uint64_t time, enum gesture_cancelled cancelled)
+tp_gesture_end(struct tp_dispatch *tp, usec_t time, enum gesture_cancelled cancelled)
 {
 	switch (tp->gesture.state) {
 	case GESTURE_STATE_NONE:
@@ -1917,13 +1930,13 @@ tp_gesture_end(struct tp_dispatch *tp, uint64_t time, enum gesture_cancelled can
 }
 
 void
-tp_gesture_cancel(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_cancel(struct tp_dispatch *tp, usec_t time)
 {
 	tp_gesture_end(tp, time, CANCEL_GESTURE);
 }
 
 void
-tp_gesture_cancel_motion_gestures(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_cancel_motion_gestures(struct tp_dispatch *tp, usec_t time)
 {
 
 	switch (tp->gesture.state) {
@@ -1952,13 +1965,13 @@ tp_gesture_cancel_motion_gestures(struct tp_dispatch *tp, uint64_t time)
 }
 
 void
-tp_gesture_stop(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_stop(struct tp_dispatch *tp, usec_t time)
 {
 	tp_gesture_end(tp, time, END_GESTURE);
 }
 
 static void
-tp_gesture_finger_count_switch_timeout(uint64_t now, void *data)
+tp_gesture_finger_count_switch_timeout(usec_t now, void *data)
 {
 	struct tp_dispatch *tp = data;
 
@@ -1996,7 +2009,7 @@ tp_gesture_debounce_finger_changes(struct tp_dispatch *tp)
 }
 
 void
-tp_gesture_update_finger_state(struct tp_dispatch *tp, uint64_t time)
+tp_gesture_update_finger_state(struct tp_dispatch *tp, usec_t time)
 {
 	unsigned int active_touches = 0;
 	struct tp_touch *t;
@@ -2026,8 +2039,9 @@ tp_gesture_update_finger_state(struct tp_dispatch *tp, uint64_t time)
 			/* Else debounce finger changes */
 		} else if (active_touches != tp->gesture.finger_count_pending) {
 			tp->gesture.finger_count_pending = active_touches;
-			libinput_timer_set(&tp->gesture.finger_count_switch_timer,
-					   time + DEFAULT_GESTURE_SWITCH_TIMEOUT);
+			libinput_timer_set(
+				&tp->gesture.finger_count_switch_timer,
+				usec_add(time, DEFAULT_GESTURE_SWITCH_TIMEOUT));
 		}
 	} else {
 		tp->gesture.finger_count_pending = 0;

src/evdev-mt-touchpad-tap.c

@@ -29,10 +29,10 @@
 
 #include "evdev-mt-touchpad.h"
 
-#define DEFAULT_TAP_TIMEOUT_PERIOD ms2us(180)
-#define DEFAULT_DRAG_TIMEOUT_PERIOD_BASE ms2us(160)
-#define DEFAULT_DRAG_TIMEOUT_PERIOD_PERFINGER ms2us(20)
-#define DEFAULT_DRAGLOCK_TIMEOUT_PERIOD ms2us(300)
+#define DEFAULT_TAP_TIMEOUT_PERIOD usec_from_millis(180)
+#define DEFAULT_DRAG_TIMEOUT_PERIOD_BASE usec_from_millis(160)
+#define DEFAULT_DRAG_TIMEOUT_PERIOD_PERFINGER usec_from_millis(20)
+#define DEFAULT_DRAGLOCK_TIMEOUT_PERIOD usec_from_millis(300)
 #define DEFAULT_TAP_MOVE_THRESHOLD 1.3 /* mm */
 
 enum tap_event {
@@ -120,7 +120,7 @@ log_tap_bug(struct tp_dispatch *tp, struct tp_touch *t, enum tap_event event)
 
 static void
 tp_tap_notify(struct tp_dispatch *tp,
-	      uint64_t time,
+	      usec_t time,
 	      int nfingers,
 	      enum libinput_button_state state)
 {
@@ -151,24 +151,25 @@ tp_tap_notify(struct tp_dispatch *tp,
 }
 
 static void
-tp_tap_set_timer(struct tp_dispatch *tp, uint64_t time)
+tp_tap_set_timer(struct tp_dispatch *tp, usec_t time)
 {
-	libinput_timer_set(&tp->tap.timer, time + DEFAULT_TAP_TIMEOUT_PERIOD);
+	libinput_timer_set(&tp->tap.timer, usec_add(time, DEFAULT_TAP_TIMEOUT_PERIOD));
 }
 
 static void
-tp_tap_set_drag_timer(struct tp_dispatch *tp, uint64_t time, int nfingers_tapped)
+tp_tap_set_drag_timer(struct tp_dispatch *tp, usec_t time, int nfingers_tapped)
 {
-	libinput_timer_set(
-		&tp->tap.timer,
-		time + DEFAULT_DRAG_TIMEOUT_PERIOD_BASE +
-			(nfingers_tapped * DEFAULT_DRAG_TIMEOUT_PERIOD_PERFINGER));
+	usec_t per_finger_timeout =
+		usec_mul(DEFAULT_DRAG_TIMEOUT_PERIOD_PERFINGER, nfingers_tapped);
+	usec_t timeout = usec_add(DEFAULT_DRAG_TIMEOUT_PERIOD_BASE, per_finger_timeout);
+	libinput_timer_set(&tp->tap.timer, usec_add(time, timeout));
 }
 
 static void
-tp_tap_set_draglock_timer(struct tp_dispatch *tp, uint64_t time)
+tp_tap_set_draglock_timer(struct tp_dispatch *tp, usec_t time)
 {
-	libinput_timer_set(&tp->tap.timer, time + DEFAULT_DRAGLOCK_TIMEOUT_PERIOD);
+	libinput_timer_set(&tp->tap.timer,
+			   usec_add(time, DEFAULT_DRAGLOCK_TIMEOUT_PERIOD));
 }
 
 static void
@@ -189,7 +190,7 @@ static void
 tp_tap_idle_handle_event(struct tp_dispatch *tp,
 			 struct tp_touch *t,
 			 enum tap_event event,
-			 uint64_t time)
+			 usec_t time)
 {
 	switch (event) {
 	case TAP_EVENT_TOUCH:
@@ -222,7 +223,7 @@ static void
 tp_tap_touch_handle_event(struct tp_dispatch *tp,
 			  struct tp_touch *t,
 			  enum tap_event event,
-			  uint64_t time)
+			  usec_t time)
 {
 
 	switch (event) {
@@ -276,7 +277,7 @@ static void
 tp_tap_hold_handle_event(struct tp_dispatch *tp,
 			 struct tp_touch *t,
 			 enum tap_event event,
-			 uint64_t time)
+			 usec_t time)
 {
 
 	switch (event) {
@@ -314,7 +315,7 @@ static void
 tp_tap_tapped_handle_event(struct tp_dispatch *tp,
 			   struct tp_touch *t,
 			   enum tap_event event,
-			   uint64_t time,
+			   usec_t time,
 			   int nfingers_tapped)
 {
 	switch (event) {
@@ -363,7 +364,7 @@ static void
 tp_tap_touch2_handle_event(struct tp_dispatch *tp,
 			   struct tp_touch *t,
 			   enum tap_event event,
-			   uint64_t time)
+			   usec_t time)
 {
 
 	switch (event) {
@@ -401,7 +402,7 @@ static void
 tp_tap_touch2_hold_handle_event(struct tp_dispatch *tp,
 				struct tp_touch *t,
 				enum tap_event event,
-				uint64_t time)
+				usec_t time)
 {
 
 	switch (event) {
@@ -436,7 +437,7 @@ static void
 tp_tap_touch2_release_handle_event(struct tp_dispatch *tp,
 				   struct tp_touch *t,
 				   enum tap_event event,
-				   uint64_t time)
+				   usec_t time)
 {
 
 	switch (event) {
@@ -505,7 +506,7 @@ static void
 tp_tap_touch3_handle_event(struct tp_dispatch *tp,
 			   struct tp_touch *t,
 			   enum tap_event event,
-			   uint64_t time)
+			   usec_t time)
 {
 
 	switch (event) {
@@ -543,7 +544,7 @@ static void
 tp_tap_touch3_hold_handle_event(struct tp_dispatch *tp,
 				struct tp_touch *t,
 				enum tap_event event,
-				uint64_t time)
+				usec_t time)
 {
 
 	switch (event) {
@@ -576,7 +577,7 @@ static void
 tp_tap_touch3_release_handle_event(struct tp_dispatch *tp,
 				   struct tp_touch *t,
 				   enum tap_event event,
-				   uint64_t time)
+				   usec_t time)
 {
 
 	switch (event) {
@@ -644,7 +645,7 @@ static void
 tp_tap_touch3_release2_handle_event(struct tp_dispatch *tp,
 				    struct tp_touch *t,
 				    enum tap_event event,
-				    uint64_t time)
+				    usec_t time)
 {
 
 	switch (event) {
@@ -742,7 +743,7 @@ static void
 tp_tap_dragging_or_doubletap_handle_event(struct tp_dispatch *tp,
 					  struct tp_touch *t,
 					  enum tap_event event,
-					  uint64_t time,
+					  usec_t time,
 					  int nfingers_tapped)
 {
 	switch (event) {
@@ -808,7 +809,7 @@ static void
 tp_tap_dragging_handle_event(struct tp_dispatch *tp,
 			     struct tp_touch *t,
 			     enum tap_event event,
-			     uint64_t time,
+			     usec_t time,
 			     int nfingers_tapped)
 {
 
@@ -872,7 +873,7 @@ static void
 tp_tap_dragging_wait_handle_event(struct tp_dispatch *tp,
 				  struct tp_touch *t,
 				  enum tap_event event,
-				  uint64_t time,
+				  usec_t time,
 				  int nfingers_tapped)
 {
 
@@ -919,7 +920,7 @@ static void
 tp_tap_dragging_tap_handle_event(struct tp_dispatch *tp,
 				 struct tp_touch *t,
 				 enum tap_event event,
-				 uint64_t time,
+				 usec_t time,
 				 int nfingers_tapped)
 {
 
@@ -979,7 +980,7 @@ static void
 tp_tap_dragging2_handle_event(struct tp_dispatch *tp,
 			      struct tp_touch *t,
 			      enum tap_event event,
-			      uint64_t time,
+			      usec_t time,
 			      int nfingers_tapped)
 {
 
@@ -1033,7 +1034,7 @@ static void
 tp_tap_dead_handle_event(struct tp_dispatch *tp,
 			 struct tp_touch *t,
 			 enum tap_event event,
-			 uint64_t time)
+			 usec_t time)
 {
 
 	switch (event) {
@@ -1060,7 +1061,7 @@ static void
 tp_tap_handle_event(struct tp_dispatch *tp,
 		    struct tp_touch *t,
 		    enum tap_event event,
-		    uint64_t time)
+		    usec_t time)
 {
 	enum tp_tap_state current;
 
@@ -1206,7 +1207,7 @@ tp_tap_enabled(struct tp_dispatch *tp)
 }
 
 int
-tp_tap_handle_state(struct tp_dispatch *tp, uint64_t time)
+tp_tap_handle_state(struct tp_dispatch *tp, usec_t time)
 {
 	struct tp_touch *t;
 	int filter_motion = 0;
@@ -1341,7 +1342,7 @@ tp_tap_post_process_state(struct tp_dispatch *tp)
 }
 
 static void
-tp_tap_handle_timeout(uint64_t time, void *data)
+tp_tap_handle_timeout(usec_t time, void *data)
 {
 	struct tp_dispatch *tp = data;
 	struct tp_touch *t;
@@ -1357,10 +1358,7 @@ tp_tap_handle_timeout(uint64_t time, void *data)
 }
 
 static void
-tp_tap_enabled_update(struct tp_dispatch *tp,
-		      bool suspended,
-		      bool enabled,
-		      uint64_t time)
+tp_tap_enabled_update(struct tp_dispatch *tp, bool suspended, bool enabled, usec_t time)
 {
 	bool was_enabled = tp_tap_enabled(tp);
 
@@ -1599,7 +1597,7 @@ tp_remove_tap(struct tp_dispatch *tp)
 }
 
 void
-tp_release_all_taps(struct tp_dispatch *tp, uint64_t now)
+tp_release_all_taps(struct tp_dispatch *tp, usec_t now)
 {
 	struct tp_touch *t;
 	int i;
@@ -1626,13 +1624,13 @@ tp_release_all_taps(struct tp_dispatch *tp, uint64_t now)
 }
 
 void
-tp_tap_suspend(struct tp_dispatch *tp, uint64_t time)
+tp_tap_suspend(struct tp_dispatch *tp, usec_t time)
 {
 	tp_tap_enabled_update(tp, true, tp->tap.enabled, time);
 }
 
 void
-tp_tap_resume(struct tp_dispatch *tp, uint64_t time)
+tp_tap_resume(struct tp_dispatch *tp, usec_t time)
 {
 	tp_tap_enabled_update(tp, false, tp->tap.enabled, time);
 }

src/evdev-mt-touchpad-thumb.c

@@ -29,7 +29,7 @@
 /* distance between fingers to assume it is not a scroll */
 #define SCROLL_MM_X 35
 #define SCROLL_MM_Y 25
-#define THUMB_TIMEOUT ms2us(100)
+#define THUMB_TIMEOUT usec_from_millis(100)
 
 static inline const char *
 thumb_state_to_str(enum tp_thumb_state state)
@@ -193,7 +193,7 @@ tp_thumb_revive(struct tp_dispatch *tp, struct tp_touch *t)
 }
 
 void
-tp_thumb_update_touch(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
+tp_thumb_update_touch(struct tp_dispatch *tp, struct tp_touch *t, usec_t time)
 {
 	if (!tp->thumb.detect_thumbs)
 		return;
@@ -274,7 +274,7 @@ tp_thumb_update_multifinger(struct tp_dispatch *tp)
 		speed_exceeded_count =
 			max(speed_exceeded_count, t->speed.exceeded_count);
 
-		if (!oldest || t->initial_time < oldest->initial_time) {
+		if (!oldest || usec_cmp(t->initial_time, oldest->initial_time) < 0) {
 			oldest = t;
 		}
 
@@ -337,10 +337,13 @@ tp_thumb_update_multifinger(struct tp_dispatch *tp)
 	 * the behavior of the other touches.)
 	 */
 
-	if (newest && (newest->initial_time - oldest->initial_time) < THUMB_TIMEOUT &&
-	    first->point.y < tp->thumb.lower_thumb_line) {
-		tp_thumb_lift(tp);
-		return;
+	if (newest) {
+		usec_t delta = usec_delta(newest->initial_time, oldest->initial_time);
+		if (usec_cmp(delta, THUMB_TIMEOUT) < 0 &&
+		    first->point.y < tp->thumb.lower_thumb_line) {
+			tp_thumb_lift(tp);
+			return;
+		}
 	}
 
 	/* If we're past the THUMB_TIMEOUT, and the touches are relatively far

src/evdev-mt-touchpad.c

@@ -28,19 +28,20 @@
 #include <math.h>
 #include <stdbool.h>
 
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 #include <libwacom/libwacom.h>
 #endif
 
 #include "util-input-event.h"
 
 #include "evdev-mt-touchpad.h"
+#include "libinput-feature.h"
 #include "quirks.h"
 
-#define DEFAULT_TRACKPOINT_ACTIVITY_TIMEOUT ms2us(300)
-#define DEFAULT_TRACKPOINT_EVENT_TIMEOUT ms2us(40)
-#define DEFAULT_KEYBOARD_ACTIVITY_TIMEOUT_1 ms2us(200)
-#define DEFAULT_KEYBOARD_ACTIVITY_TIMEOUT_2 ms2us(500)
+#define DEFAULT_TRACKPOINT_ACTIVITY_TIMEOUT usec_from_millis(300)
+#define DEFAULT_TRACKPOINT_EVENT_TIMEOUT usec_from_millis(40)
+#define DEFAULT_KEYBOARD_ACTIVITY_TIMEOUT_1 usec_from_millis(200)
+#define DEFAULT_KEYBOARD_ACTIVITY_TIMEOUT_2 usec_from_millis(500)
 #define FAKE_FINGER_OVERFLOW bit(7)
 #define THUMB_IGNORE_SPEED_THRESHOLD 20 /* mm/s */
 
@@ -61,7 +62,7 @@ tp_motion_history_offset(struct tp_touch *t, int offset)
 struct normalized_coords
 tp_filter_motion(struct tp_dispatch *tp,
 		 const struct device_float_coords *unaccelerated,
-		 uint64_t time)
+		 usec_t time)
 {
 	struct device_float_coords raw;
 	const struct normalized_coords zero = { 0.0, 0.0 };
@@ -78,7 +79,7 @@ tp_filter_motion(struct tp_dispatch *tp,
 struct normalized_coords
 tp_filter_motion_unaccelerated(struct tp_dispatch *tp,
 			       const struct device_float_coords *unaccelerated,
-			       uint64_t time)
+			       usec_t time)
 {
 	struct device_float_coords raw;
 	const struct normalized_coords zero = { 0.0, 0.0 };
@@ -95,7 +96,7 @@ tp_filter_motion_unaccelerated(struct tp_dispatch *tp,
 struct normalized_coords
 tp_filter_scroll(struct tp_dispatch *tp,
 		 const struct device_float_coords *unaccelerated,
-		 uint64_t time)
+		 usec_t time)
 {
 	struct device_float_coords raw;
 	const struct normalized_coords zero = { 0.0, 0.0 };
@@ -106,17 +107,19 @@ tp_filter_scroll(struct tp_dispatch *tp,
 	/* Convert to device units with x/y in the same resolution */
 	raw = tp_scale_to_xaxis(tp, *unaccelerated);
 
-	return filter_dispatch_scroll(tp->device->pointer.filter, &raw, tp, time);
+	return filter_dispatch_scroll(tp->device->pointer.filter,
+				      &raw,
+				      tp,
+				      time,
+				      FILTER_SCROLL_TYPE_FINGER);
 }
 
 static inline void
-tp_calculate_motion_speed(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
+tp_calculate_motion_speed(struct tp_dispatch *tp, struct tp_touch *t, usec_t time)
 {
 	const struct tp_history_point *last;
 	struct device_coords delta;
 	struct phys_coords mm;
-	double distance;
-	double speed;
 
 	/* Don't do this on single-touch or semi-mt devices */
 	if (!tp->has_mt || tp->semi_mt)
@@ -144,15 +147,16 @@ tp_calculate_motion_speed(struct tp_dispatch *tp, struct tp_touch *t, uint64_t t
 	delta.y = abs(t->point.y - last->point.y);
 	mm = evdev_device_unit_delta_to_mm(tp->device, &delta);
 
-	distance = length_in_mm(mm);
-	speed = distance / (time - last->time); /* mm/us */
-	speed *= 1000000;                       /* mm/s */
+	usec_t tdelta = usec_delta(time, last->time);
+	double distance = length_in_mm(mm);
+	double speed = distance / usec_as_uint64_t(tdelta); /* mm/us */
+	speed *= 1000000;                                   /* mm/s */
 
 	t->speed.last_speed = speed;
 }
 
 static inline void
-tp_motion_history_push(struct tp_touch *t, uint64_t time)
+tp_motion_history_push(struct tp_touch *t, usec_t time)
 {
 	int motion_index = (t->history.index + 1) % TOUCHPAD_HISTORY_LENGTH;
 
@@ -176,10 +180,9 @@ tp_motion_history_push(struct tp_touch *t, uint64_t time)
  * This only looks at x changes, y changes are ignored.
  */
 static inline void
-tp_detect_wobbling(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
+tp_detect_wobbling(struct tp_dispatch *tp, struct tp_touch *t, usec_t time)
 {
 	int dx, dy;
-	uint64_t dtime;
 	const struct device_coords *prev_point;
 
 	if (tp->nfingers_down != 1 || tp->nfingers_down != tp->old_nfingers_down)
@@ -196,11 +199,11 @@ tp_detect_wobbling(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
 	prev_point = &tp_motion_history_offset(t, 0)->point;
 	dx = prev_point->x - t->point.x;
 	dy = prev_point->y - t->point.y;
-	dtime = time - tp->hysteresis.last_motion_time;
+	usec_t dtime = usec_delta(time, tp->hysteresis.last_motion_time);
 
 	tp->hysteresis.last_motion_time = time;
 
-	if ((dx == 0 && dy != 0) || dtime > ms2us(40)) {
+	if ((dx == 0 && dy != 0) || usec_cmp(dtime, usec_from_millis(40)) > 0) {
 		t->hysteresis.x_motion_history = 0;
 		return;
 	}
@@ -318,7 +321,7 @@ tp_fake_finger_set(struct tp_dispatch *tp, evdev_usage_t usage, bool is_press)
 }
 
 static inline void
-tp_new_touch(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
+tp_new_touch(struct tp_dispatch *tp, struct tp_touch *t, usec_t time)
 {
 	if (t->state == TOUCH_BEGIN || t->state == TOUCH_UPDATE ||
 	    t->state == TOUCH_HOVERING)
@@ -353,7 +356,7 @@ tp_new_touch(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
 }
 
 static inline void
-tp_begin_touch(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
+tp_begin_touch(struct tp_dispatch *tp, struct tp_touch *t, usec_t time)
 {
 	t->dirty = true;
 	t->state = TOUCH_BEGIN;
@@ -377,7 +380,7 @@ tp_begin_touch(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
  * need.
  */
 static inline void
-tp_maybe_end_touch(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
+tp_maybe_end_touch(struct tp_dispatch *tp, struct tp_touch *t, usec_t time)
 {
 	switch (t->state) {
 	case TOUCH_NONE:
@@ -422,7 +425,7 @@ tp_recover_ended_touch(struct tp_dispatch *tp, struct tp_touch *t)
  * Use tp_maybe_end_touch() instead.
  */
 static inline void
-tp_end_touch(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
+tp_end_touch(struct tp_dispatch *tp, struct tp_touch *t, usec_t time)
 {
 	if (t->state != TOUCH_MAYBE_END) {
 		evdev_log_bug_libinput(tp->device,
@@ -436,7 +439,7 @@ tp_end_touch(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
 	t->palm.state = PALM_NONE;
 	t->state = TOUCH_END;
 	t->pinned.is_pinned = false;
-	t->palm.time = 0;
+	t->palm.time = usec_from_uint64_t(0);
 	t->speed.exceeded_count = 0;
 	tp->queued |= TOUCHPAD_EVENT_MOTION;
 }
@@ -445,14 +448,14 @@ tp_end_touch(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
  * End the touch sequence on ABS_MT_TRACKING_ID -1 or when the BTN_TOOL_* 0 is received.
  */
 static inline void
-tp_end_sequence(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
+tp_end_sequence(struct tp_dispatch *tp, struct tp_touch *t, usec_t time)
 {
 	t->has_ended = true;
 	tp_maybe_end_touch(tp, t, time);
 }
 
 static void
-tp_stop_actions(struct tp_dispatch *tp, uint64_t time)
+tp_stop_actions(struct tp_dispatch *tp, usec_t time)
 {
 	tp_edge_scroll_stop_events(tp, time);
 	tp_gesture_cancel(tp, time);
@@ -500,7 +503,7 @@ rotated(struct tp_dispatch *tp, evdev_usage_t usage, int value)
 }
 
 static void
-tp_process_absolute(struct tp_dispatch *tp, const struct evdev_event *e, uint64_t time)
+tp_process_absolute(struct tp_dispatch *tp, const struct evdev_event *e, usec_t time)
 {
 	struct tp_touch *t = tp_current_touch(tp);
 
@@ -555,9 +558,7 @@ tp_process_absolute(struct tp_dispatch *tp, const struct evdev_event *e, uint64_
 }
 
 static void
-tp_process_absolute_st(struct tp_dispatch *tp,
-		       const struct evdev_event *e,
-		       uint64_t time)
+tp_process_absolute_st(struct tp_dispatch *tp, const struct evdev_event *e, usec_t time)
 {
 	struct tp_touch *t = tp_current_touch(tp);
 
@@ -585,7 +586,7 @@ tp_process_absolute_st(struct tp_dispatch *tp,
 }
 
 static inline void
-tp_restore_synaptics_touches(struct tp_dispatch *tp, uint64_t time)
+tp_restore_synaptics_touches(struct tp_dispatch *tp, usec_t time)
 {
 	unsigned int i;
 	unsigned int nfake_touches;
@@ -619,7 +620,7 @@ tp_restore_synaptics_touches(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_process_fake_touches(struct tp_dispatch *tp, uint64_t time)
+tp_process_fake_touches(struct tp_dispatch *tp, usec_t time)
 {
 	struct tp_touch *t;
 	unsigned int nfake_touches;
@@ -672,7 +673,7 @@ tp_process_fake_touches(struct tp_dispatch *tp, uint64_t time)
 static void
 tp_process_trackpoint_button(struct tp_dispatch *tp,
 			     const struct evdev_event *e,
-			     uint64_t time)
+			     usec_t time)
 {
 	struct evdev_dispatch *dispatch;
 	evdev_usage_t button;
@@ -704,7 +705,7 @@ tp_process_trackpoint_button(struct tp_dispatch *tp,
 }
 
 static void
-tp_process_key(struct tp_dispatch *tp, const struct evdev_event *e, uint64_t time)
+tp_process_key(struct tp_dispatch *tp, const struct evdev_event *e, usec_t time)
 {
 	/* ignore kernel key repeat */
 	if (e->value == 2)
@@ -735,12 +736,12 @@ tp_process_key(struct tp_dispatch *tp, const struct evdev_event *e, uint64_t tim
 }
 
 static void
-tp_process_msc(struct tp_dispatch *tp, const struct evdev_event *e, uint64_t time)
+tp_process_msc(struct tp_dispatch *tp, const struct evdev_event *e, usec_t time)
 {
 	if (evdev_usage_eq(e->usage, EVDEV_MSC_TIMESTAMP))
 		return;
 
-	tp->quirks.msc_timestamp.now = e->value;
+	tp->quirks.msc_timestamp.now = usec_from_uint64_t(e->value);
 	tp->queued |= TOUCHPAD_EVENT_TIMESTAMP;
 }
 
@@ -826,7 +827,7 @@ tp_palm_in_edge(const struct tp_dispatch *tp, const struct tp_touch *t)
 }
 
 static bool
-tp_palm_detect_dwt_triggered(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
+tp_palm_detect_dwt_triggered(struct tp_dispatch *tp, struct tp_touch *t, usec_t time)
 {
 	if (tp->dwt.dwt_enabled && tp->dwt.keyboard_active && t->state == TOUCH_BEGIN) {
 		t->palm.state = PALM_TYPING;
@@ -842,8 +843,8 @@ tp_palm_detect_dwt_triggered(struct tp_dispatch *tp, struct tp_touch *t, uint64_
 		   started once we stop typing will be able to control the
 		   pointer (alas not tap, etc.).
 		   */
-		if (t->palm.time == 0 ||
-		    t->palm.time > tp->dwt.keyboard_last_press_time) {
+		if (usec_is_zero(t->palm.time) ||
+		    usec_cmp(t->palm.time, tp->dwt.keyboard_last_press_time) > 0) {
 			t->palm.state = PALM_NONE;
 			evdev_log_debug(
 				tp->device,
@@ -858,7 +859,7 @@ tp_palm_detect_dwt_triggered(struct tp_dispatch *tp, struct tp_touch *t, uint64_
 static bool
 tp_palm_detect_trackpoint_triggered(struct tp_dispatch *tp,
 				    struct tp_touch *t,
-				    uint64_t time)
+				    usec_t time)
 {
 	if (!tp->palm.monitor_trackpoint)
 		return false;
@@ -872,8 +873,8 @@ tp_palm_detect_trackpoint_triggered(struct tp_dispatch *tp,
 	if (t->palm.state == PALM_TRACKPOINT && t->state == TOUCH_UPDATE &&
 	    !tp->palm.trackpoint_active) {
 
-		if (t->palm.time == 0 ||
-		    t->palm.time > tp->palm.trackpoint_last_event_time) {
+		if (usec_is_zero(t->palm.time) ||
+		    usec_cmp(t->palm.time, tp->palm.trackpoint_last_event_time) > 0) {
 			t->palm.state = PALM_NONE;
 			evdev_log_debug(
 				tp->device,
@@ -886,7 +887,7 @@ tp_palm_detect_trackpoint_triggered(struct tp_dispatch *tp,
 }
 
 static bool
-tp_palm_detect_tool_triggered(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
+tp_palm_detect_tool_triggered(struct tp_dispatch *tp, struct tp_touch *t, usec_t time)
 {
 	if (!tp->palm.use_mt_tool)
 		return false;
@@ -903,16 +904,15 @@ tp_palm_detect_tool_triggered(struct tp_dispatch *tp, struct tp_touch *t, uint64
 }
 
 static inline bool
-tp_palm_detect_move_out_of_edge(struct tp_dispatch *tp,
-				struct tp_touch *t,
-				uint64_t time)
+tp_palm_detect_move_out_of_edge(struct tp_dispatch *tp, struct tp_touch *t, usec_t time)
 {
-	const int PALM_TIMEOUT = ms2us(200);
+	const usec_t PALM_TIMEOUT = usec_from_millis(200);
 	int directions = 0;
 	struct device_float_coords delta;
 	int dirs;
 
-	if (time < t->palm.time + PALM_TIMEOUT && !tp_palm_in_edge(tp, t)) {
+	if (usec_cmp(time, usec_add(t->palm.time, PALM_TIMEOUT)) < 0 &&
+	    !tp_palm_in_edge(tp, t)) {
 		if (tp_palm_was_in_side_edge(tp, t))
 			directions = NE | E | SE | SW | W | NW;
 		else if (tp_palm_was_in_top_edge(tp, t))
@@ -930,7 +930,7 @@ tp_palm_detect_move_out_of_edge(struct tp_dispatch *tp,
 }
 
 static inline bool
-tp_palm_detect_multifinger(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
+tp_palm_detect_multifinger(struct tp_dispatch *tp, struct tp_touch *t, usec_t time)
 {
 	struct tp_touch *other;
 
@@ -960,7 +960,7 @@ tp_palm_detect_multifinger(struct tp_dispatch *tp, struct tp_touch *t, uint64_t
 static inline bool
 tp_palm_detect_touch_size_triggered(struct tp_dispatch *tp,
 				    struct tp_touch *t,
-				    uint64_t time)
+				    usec_t time)
 {
 	if (!tp->palm.use_size)
 		return false;
@@ -983,7 +983,7 @@ tp_palm_detect_touch_size_triggered(struct tp_dispatch *tp,
 }
 
 static inline bool
-tp_palm_detect_edge(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
+tp_palm_detect_edge(struct tp_dispatch *tp, struct tp_touch *t, usec_t time)
 {
 	if (t->palm.state == PALM_EDGE) {
 		if (tp_palm_detect_multifinger(tp, t, time)) {
@@ -1030,7 +1030,7 @@ tp_palm_detect_edge(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
 static bool
 tp_palm_detect_pressure_triggered(struct tp_dispatch *tp,
 				  struct tp_touch *t,
-				  uint64_t time)
+				  usec_t time)
 {
 	if (!tp->palm.use_pressure)
 		return false;
@@ -1047,7 +1047,7 @@ tp_palm_detect_pressure_triggered(struct tp_dispatch *tp,
 static bool
 tp_palm_detect_arbitration_triggered(struct tp_dispatch *tp,
 				     struct tp_touch *t,
-				     uint64_t time)
+				     usec_t time)
 {
 	if (tp->arbitration.state == ARBITRATION_NOT_ACTIVE)
 		return false;
@@ -1058,7 +1058,7 @@ tp_palm_detect_arbitration_triggered(struct tp_dispatch *tp,
 }
 
 static void
-tp_palm_detect(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
+tp_palm_detect(struct tp_dispatch *tp, struct tp_touch *t, usec_t time)
 {
 	const char *palm_state;
 	enum touch_palm_state oldstate = t->palm.state;
@@ -1134,7 +1134,7 @@ out:
 }
 
 static void
-tp_unhover_pressure(struct tp_dispatch *tp, uint64_t time)
+tp_unhover_pressure(struct tp_dispatch *tp, usec_t time)
 {
 	struct tp_touch *t;
 	int i;
@@ -1218,7 +1218,7 @@ tp_unhover_pressure(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_unhover_size(struct tp_dispatch *tp, uint64_t time)
+tp_unhover_size(struct tp_dispatch *tp, usec_t time)
 {
 	struct tp_touch *t;
 	int low = tp->touch_size.low, high = tp->touch_size.high;
@@ -1258,7 +1258,7 @@ tp_unhover_size(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_unhover_fake_touches(struct tp_dispatch *tp, uint64_t time)
+tp_unhover_fake_touches(struct tp_dispatch *tp, usec_t time)
 {
 	struct tp_touch *t;
 	unsigned int nfake_touches;
@@ -1312,7 +1312,7 @@ tp_unhover_fake_touches(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_unhover_touches(struct tp_dispatch *tp, uint64_t time)
+tp_unhover_touches(struct tp_dispatch *tp, usec_t time)
 {
 	if (tp->pressure.use_pressure)
 		tp_unhover_pressure(tp, time);
@@ -1398,17 +1398,17 @@ tp_need_motion_history_reset(struct tp_dispatch *tp)
 }
 
 static bool
-tp_detect_jumps(const struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
+tp_detect_jumps(const struct tp_dispatch *tp, struct tp_touch *t, usec_t time)
 {
 	struct device_coords delta;
 	struct phys_coords mm;
 	struct tp_history_point *last;
 	double abs_distance, rel_distance;
 	bool is_jump = false;
-	uint64_t tdelta;
+	usec_t tdelta;
 	/* Reference interval from the touchpad the various thresholds
 	 * were measured from */
-	unsigned int reference_interval = ms2us(12);
+	usec_t reference_interval = usec_from_millis(12);
 
 	/* On some touchpads the firmware does funky stuff and we cannot
 	 * have our own jump detection, e.g. Lenovo Carbon X1 Gen 6 (see
@@ -1431,7 +1431,7 @@ tp_detect_jumps(const struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
 	/* called before tp_motion_history_push, so offset 0 is the most
 	 * recent coordinate */
 	last = tp_motion_history_offset(t, 0);
-	tdelta = time - last->time;
+	tdelta = usec_delta(time, last->time);
 
 	/* For test devices we always force the time delta to 12, at least
 	   until the test suite actually does proper intervals. */
@@ -1441,7 +1441,8 @@ tp_detect_jumps(const struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
 	/* If the last frame is more than 30ms ago, we have irregular
 	 * frames, who knows what's a pointer jump here and what's
 	 * legitimate movement.... */
-	if (tdelta > 2.5 * reference_interval || tdelta == 0)
+	if (usec_cmp(tdelta, usec_mul(reference_interval, 2.5)) > 0 ||
+	    usec_is_zero(tdelta))
 		return false;
 
 	/* We historically expected ~12ms frame intervals, so the numbers
@@ -1450,7 +1451,8 @@ tp_detect_jumps(const struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
 	delta.x = abs(t->point.x - last->point.x);
 	delta.y = abs(t->point.y - last->point.y);
 	mm = evdev_device_unit_delta_to_mm(tp->device, &delta);
-	abs_distance = hypot(mm.x, mm.y) * reference_interval / tdelta;
+	abs_distance = hypot(mm.x, mm.y) * usec_as_uint64_t(reference_interval) /
+		       usec_as_uint64_t(tdelta);
 	rel_distance = abs_distance - t->jumps.last_delta_mm;
 
 	/* Special case for the ALPS devices in the Lenovo ThinkPad E465,
@@ -1491,9 +1493,9 @@ tp_detect_jumps(const struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
 static inline void
 tp_motion_history_fix_last(struct tp_dispatch *tp,
 			   struct tp_touch *t,
-			   unsigned int jumping_interval,
-			   unsigned int normal_interval,
-			   uint64_t time)
+			   usec_t jumping_interval,
+			   usec_t normal_interval,
+			   usec_t time)
 {
 	if (t->state != TOUCH_UPDATE)
 		return;
@@ -1509,12 +1511,13 @@ tp_motion_history_fix_last(struct tp_dispatch *tp,
 		struct tp_history_point *p;
 
 		p = tp_motion_history_offset(t, i);
-		p->time = time - jumping_interval - normal_interval * i;
+		p->time = usec_sub(usec_sub(time, jumping_interval),
+				   usec_mul(normal_interval, i));
 	}
 }
 
 static void
-tp_process_msc_timestamp(struct tp_dispatch *tp, uint64_t time)
+tp_process_msc_timestamp(struct tp_dispatch *tp, usec_t time)
 {
 	struct msc_timestamp *m = &tp->quirks.msc_timestamp;
 
@@ -1548,15 +1551,15 @@ tp_process_msc_timestamp(struct tp_dispatch *tp, uint64_t time)
 	   delta is equivalent to 10 events and the movement is x, we
 	   instead pretend there was movement of x/10.
 	 */
-	if (m->now == 0) {
+	if (usec_is_zero(m->now)) {
 		m->state = JUMP_STATE_EXPECT_FIRST;
-		m->interval = 0;
+		m->interval = usec_from_uint64_t(0);
 		return;
 	}
 
 	switch (m->state) {
 	case JUMP_STATE_EXPECT_FIRST:
-		if (m->now > ms2us(20)) {
+		if (usec_cmp(m->now, usec_from_millis(20)) > 0) {
 			m->state = JUMP_STATE_IGNORE;
 		} else {
 			m->state = JUMP_STATE_EXPECT_DELAY;
@@ -1564,13 +1567,13 @@ tp_process_msc_timestamp(struct tp_dispatch *tp, uint64_t time)
 		}
 		break;
 	case JUMP_STATE_EXPECT_DELAY:
-		if (m->now > m->interval * 2) {
-			uint32_t tdelta; /* µs */
+		if (usec_cmp(m->now, usec_mul(m->interval, 2)) > 0) {
+			usec_t tdelta; /* µs */
 			struct tp_touch *t;
 
 			/* The current time is > 2 times the interval so we
 			 * have a jump. Fix the motion history */
-			tdelta = m->now - m->interval;
+			tdelta = usec_delta(m->now, m->interval);
 
 			tp_for_each_touch(tp, t) {
 				tp_motion_history_fix_last(tp,
@@ -1588,7 +1591,9 @@ tp_process_msc_timestamp(struct tp_dispatch *tp, uint64_t time)
 			 * only ever see those jumps over the first three events it
 			 * doesn't matter.
 			 */
-			filter_restart(tp->device->pointer.filter, tp, time - tdelta);
+			filter_restart(tp->device->pointer.filter,
+				       tp,
+				       usec_sub(time, tdelta));
 		}
 		break;
 	case JUMP_STATE_IGNORE:
@@ -1597,7 +1602,7 @@ tp_process_msc_timestamp(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_pre_process_state(struct tp_dispatch *tp, uint64_t time)
+tp_pre_process_state(struct tp_dispatch *tp, usec_t time)
 {
 	struct tp_touch *t;
 
@@ -1619,7 +1624,7 @@ tp_pre_process_state(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_process_state(struct tp_dispatch *tp, uint64_t time)
+tp_process_state(struct tp_dispatch *tp, usec_t time)
 {
 	struct tp_touch *t;
 	bool restart_filter = false;
@@ -1730,7 +1735,7 @@ tp_process_state(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_post_process_state(struct tp_dispatch *tp, uint64_t time)
+tp_post_process_state(struct tp_dispatch *tp, usec_t time)
 {
 	struct tp_touch *t;
 
@@ -1764,7 +1769,7 @@ tp_post_process_state(struct tp_dispatch *tp, uint64_t time)
 }
 
 static void
-tp_post_events(struct tp_dispatch *tp, uint64_t time)
+tp_post_events(struct tp_dispatch *tp, usec_t time)
 {
 	bool ignore_motion = false;
 
@@ -1815,7 +1820,7 @@ tp_apply_rotation(struct evdev_device *device)
 }
 
 static void
-tp_handle_state(struct tp_dispatch *tp, uint64_t time)
+tp_handle_state(struct tp_dispatch *tp, usec_t time)
 {
 	tp_pre_process_state(tp, time);
 	tp_process_state(tp, time);
@@ -1853,7 +1858,7 @@ static void
 tp_interface_process_event(struct evdev_dispatch *dispatch,
 			   struct evdev_device *device,
 			   struct evdev_event *e,
-			   uint64_t time)
+			   usec_t time)
 {
 	struct tp_dispatch *tp = tp_dispatch(dispatch);
 
@@ -1884,11 +1889,27 @@ static void
 tp_interface_process(struct evdev_dispatch *dispatch,
 		     struct evdev_device *device,
 		     struct evdev_frame *frame,
-		     uint64_t time)
+		     usec_t time)
 {
 	size_t nevents;
 	struct evdev_event *events = evdev_frame_get_events(frame, &nevents);
 
+	struct evdev_event *ev_syn = &events[nevents - 1];
+	if (evdev_usage_enum(ev_syn->usage) == EVDEV_SYN_REPORT) {
+		/* A SYN_REPORT 1 event is a kernel-inserted SYN_REPORT.
+		 * This happens most commonly on key repeat but in the
+		 * touchpad code this causes issues with
+		 * timestamp deltas (see e.g. #1145).
+		 *
+		 * Let's drop this frame, hoping it wasn't important.
+		 */
+		if (ev_syn->value == 1) {
+			return;
+		}
+	} else {
+		evdev_log_bug_libinput(device, "Terminating event is not a SYN_REPORT");
+	}
+
 	for (size_t i = 0; i < nevents; i++) {
 		tp_interface_process_event(dispatch, device, &events[i], time);
 	}
@@ -1961,7 +1982,7 @@ tp_release_fake_touches(struct tp_dispatch *tp)
 static void
 tp_clear_state(struct tp_dispatch *tp)
 {
-	uint64_t now = libinput_now(tp_libinput_context(tp));
+	usec_t now = libinput_now(tp_libinput_context(tp));
 	struct tp_touch *t;
 
 	/* Unroll the touchpad state.
@@ -2085,7 +2106,7 @@ tp_resume(struct tp_dispatch *tp,
 }
 
 static void
-tp_trackpoint_timeout(uint64_t now, void *data)
+tp_trackpoint_timeout(usec_t now, void *data)
 {
 	struct tp_dispatch *tp = data;
 
@@ -2097,7 +2118,7 @@ tp_trackpoint_timeout(uint64_t now, void *data)
 }
 
 static void
-tp_trackpoint_event(uint64_t time, struct libinput_event *event, void *data)
+tp_trackpoint_event(usec_t time, struct libinput_event *event, void *data)
 {
 	struct tp_dispatch *tp = data;
 
@@ -2115,7 +2136,7 @@ tp_trackpoint_event(uint64_t time, struct libinput_event *event, void *data)
 	/* Require at least three events before enabling palm detection */
 	if (tp->palm.trackpoint_event_count < 3) {
 		libinput_timer_set(&tp->palm.trackpoint_timer,
-				   time + DEFAULT_TRACKPOINT_EVENT_TIMEOUT);
+				   usec_add(time, DEFAULT_TRACKPOINT_EVENT_TIMEOUT));
 		return;
 	}
 
@@ -2125,18 +2146,18 @@ tp_trackpoint_event(uint64_t time, struct libinput_event *event, void *data)
 	}
 
 	libinput_timer_set(&tp->palm.trackpoint_timer,
-			   time + DEFAULT_TRACKPOINT_ACTIVITY_TIMEOUT);
+			   usec_add(time, tp->palm.timeout));
 }
 
 static void
-tp_keyboard_timeout(uint64_t now, void *data)
+tp_keyboard_timeout(usec_t now, void *data)
 {
 	struct tp_dispatch *tp = data;
 
 	if (tp->dwt.dwt_enabled &&
 	    long_any_bit_set(tp->dwt.key_mask, ARRAY_LENGTH(tp->dwt.key_mask))) {
 		libinput_timer_set(&tp->dwt.keyboard_timer,
-				   now + DEFAULT_KEYBOARD_ACTIVITY_TIMEOUT_2);
+				   usec_add(now, tp->dwt.timeout));
 		tp->dwt.keyboard_last_press_time = now;
 		evdev_log_debug(tp->device, "palm: keyboard timeout refresh\n");
 		return;
@@ -2198,11 +2219,11 @@ tp_key_ignore_for_dwt(unsigned int keycode)
 }
 
 static void
-tp_keyboard_event(uint64_t time, struct libinput_event *event, void *data)
+tp_keyboard_event(usec_t time, struct libinput_event *event, void *data)
 {
 	struct tp_dispatch *tp = data;
 	struct libinput_event_keyboard *kbdev;
-	unsigned int timeout;
+	usec_t timeout;
 	unsigned int key;
 	bool is_modifier;
 
@@ -2251,12 +2272,12 @@ tp_keyboard_event(uint64_t time, struct libinput_event *event, void *data)
 		tp->dwt.keyboard_active = true;
 		timeout = DEFAULT_KEYBOARD_ACTIVITY_TIMEOUT_1;
 	} else {
-		timeout = DEFAULT_KEYBOARD_ACTIVITY_TIMEOUT_2;
+		timeout = tp->dwt.timeout;
 	}
 
 	tp->dwt.keyboard_last_press_time = time;
 	long_set_bit(tp->dwt.key_mask, key);
-	libinput_timer_set(&tp->dwt.keyboard_timer, time + timeout);
+	libinput_timer_set(&tp->dwt.keyboard_timer, usec_add(time, timeout));
 }
 
 static bool
@@ -2342,7 +2363,7 @@ tp_pair_trackpoint(struct evdev_device *touchpad, struct evdev_device *trackpoin
 }
 
 static void
-tp_lid_switch_event(uint64_t time, struct libinput_event *event, void *data)
+tp_lid_switch_event(usec_t time, struct libinput_event *event, void *data)
 {
 	struct tp_dispatch *tp = data;
 	struct libinput_event_switch *swev;
@@ -2367,7 +2388,7 @@ tp_lid_switch_event(uint64_t time, struct libinput_event *event, void *data)
 }
 
 static void
-tp_tablet_mode_switch_event(uint64_t time, struct libinput_event *event, void *data)
+tp_tablet_mode_switch_event(usec_t time, struct libinput_event *event, void *data)
 {
 	struct tp_dispatch *tp = data;
 	struct libinput_event_switch *swev;
@@ -2673,7 +2694,7 @@ evdev_tag_touchpad(struct evdev_device *device, struct udev_device *udev_device)
 }
 
 static void
-tp_arbitration_timeout(uint64_t now, void *data)
+tp_arbitration_timeout(usec_t now, void *data)
 {
 	struct tp_dispatch *tp = data;
 
@@ -2686,7 +2707,7 @@ tp_interface_toggle_touch(struct evdev_dispatch *dispatch,
 			  struct evdev_device *device,
 			  enum evdev_arbitration_state which,
 			  const struct phys_rect *rect,
-			  uint64_t time)
+			  usec_t time)
 {
 	struct tp_dispatch *tp = tp_dispatch(dispatch);
 
@@ -2709,7 +2730,7 @@ tp_interface_toggle_touch(struct evdev_dispatch *dispatch,
 		 * arbitration by just a little bit so that any touch in
 		 * event is caught as palm touch. */
 		libinput_timer_set(&tp->arbitration.arbitration_timer,
-				   time + ms2us(90));
+				   usec_add_millis(time, 90));
 		break;
 	}
 }
@@ -2738,6 +2759,32 @@ tp_interface_left_handed_toggled(struct evdev_dispatch *dispatch,
 	tp_change_rotation(device, DONT_NOTIFY);
 }
 
+static void
+tp_interface_disable_feature(struct evdev_dispatch *dispatch,
+			     enum libinput_feature feature)
+{
+	struct tp_dispatch *tp = tp_dispatch(dispatch);
+
+	switch (feature) {
+	case LIBINPUT_FEATURE_TOUCHPAD_JUMP_DETECTION:
+		tp->jump.detection_disabled = true;
+		break;
+	case LIBINPUT_FEATURE_TOUCHPAD_HYSTERESIS:
+		tp->hysteresis.enabled = false;
+		break;
+	case LIBINPUT_FEATURE_TOUCHPAD_PALM_DETECTION:
+		tp->palm.use_mt_tool = false;
+		tp->palm.use_pressure = false;
+		tp->palm.use_size = false;
+		tp->palm.right_edge = INT_MAX;
+		tp->palm.left_edge = INT_MIN;
+		tp->palm.upper_edge = INT_MIN;
+		break;
+	default:
+		return;
+	}
+}
+
 static struct evdev_dispatch_interface tp_interface = {
 	.process = tp_interface_process,
 	.suspend = tp_interface_suspend,
@@ -2752,6 +2799,7 @@ static struct evdev_dispatch_interface tp_interface = {
 	.touch_arbitration_update_rect = NULL,
 	.get_switch_state = NULL,
 	.left_handed_toggle = tp_interface_left_handed_toggled,
+	.disable_feature = tp_interface_disable_feature,
 };
 
 static void
@@ -2890,12 +2938,12 @@ tp_init_accel(struct tp_dispatch *tp, enum libinput_config_accel_profile which)
 		   tp->device->model_flags & EVDEV_MODEL_LENOVO_X220_TOUCHPAD_FW81) {
 		filter = create_pointer_accelerator_filter_lenovo_x230(dpi, use_v_avg);
 	} else {
-		uint64_t eds_threshold = 0;
-		uint64_t eds_value = 0;
+		usec_t eds_threshold = usec_from_uint64_t(0);
+		usec_t eds_value = usec_from_uint64_t(0);
 
 		if (libevdev_get_id_bustype(device->evdev) == BUS_BLUETOOTH) {
-			eds_threshold = ms2us(50);
-			eds_value = ms2us(10);
+			eds_threshold = usec_from_millis(50);
+			eds_value = usec_from_millis(10);
 		}
 		filter = create_pointer_accelerator_filter_touchpad(dpi,
 								    eds_threshold,
@@ -2984,7 +3032,7 @@ tp_scroll_config_scroll_method_set_method(struct libinput_device *device,
 {
 	struct evdev_device *evdev = evdev_device(device);
 	struct tp_dispatch *tp = (struct tp_dispatch *)evdev->dispatch;
-	uint64_t time = libinput_now(tp_libinput_context(tp));
+	usec_t time = libinput_now(tp_libinput_context(tp));
 
 	if (method == tp->scroll.method)
 		return LIBINPUT_CONFIG_STATUS_SUCCESS;
@@ -3122,6 +3170,30 @@ tp_dwt_config_get_default(struct libinput_device *device)
 					  : LIBINPUT_CONFIG_DWT_DISABLED;
 }
 
+static enum libinput_config_status
+tp_dwt_config_set_timeout(struct libinput_device *device, usec_t timeout)
+{
+	struct evdev_device *evdev = evdev_device(device);
+	struct tp_dispatch *tp = (struct tp_dispatch *)evdev->dispatch;
+
+	if (usec_cmp(timeout, usec_from_millis(100)) < 0 ||
+	    usec_cmp(timeout, usec_from_millis(5000)) > 0)
+		return LIBINPUT_CONFIG_STATUS_INVALID;
+
+	tp->dwt.timeout = timeout;
+
+	return LIBINPUT_CONFIG_STATUS_SUCCESS;
+}
+
+static usec_t
+tp_dwt_config_get_timeout(struct libinput_device *device)
+{
+	struct evdev_device *evdev = evdev_device(device);
+	struct tp_dispatch *tp = (struct tp_dispatch *)evdev->dispatch;
+
+	return tp->dwt.timeout;
+}
+
 static int
 tp_dwtp_config_is_available(struct libinput_device *device)
 {
@@ -3174,6 +3246,30 @@ tp_dwtp_config_get_default(struct libinput_device *device)
 					   : LIBINPUT_CONFIG_DWTP_DISABLED;
 }
 
+static enum libinput_config_status
+tp_dwtp_config_set_timeout(struct libinput_device *device, usec_t timeout)
+{
+	struct evdev_device *evdev = evdev_device(device);
+	struct tp_dispatch *tp = (struct tp_dispatch *)evdev->dispatch;
+
+	if (usec_cmp(timeout, usec_from_millis(100)) < 0 ||
+	    usec_cmp(timeout, usec_from_millis(5000)) > 0)
+		return LIBINPUT_CONFIG_STATUS_INVALID;
+
+	tp->palm.timeout = timeout;
+
+	return LIBINPUT_CONFIG_STATUS_SUCCESS;
+}
+
+static usec_t
+tp_dwtp_config_get_timeout(struct libinput_device *device)
+{
+	struct evdev_device *evdev = evdev_device(device);
+	struct tp_dispatch *tp = (struct tp_dispatch *)evdev->dispatch;
+
+	return tp->palm.timeout;
+}
+
 static inline bool
 tp_is_tpkb_combo_below(struct evdev_device *device)
 {
@@ -3210,7 +3306,10 @@ tp_init_dwt(struct tp_dispatch *tp, struct evdev_device *device)
 	tp->dwt.config.set_enabled = tp_dwt_config_set;
 	tp->dwt.config.get_enabled = tp_dwt_config_get;
 	tp->dwt.config.get_default_enabled = tp_dwt_config_get_default;
+	tp->dwt.config.set_timeout = tp_dwt_config_set_timeout;
+	tp->dwt.config.get_timeout = tp_dwt_config_get_timeout;
 	tp->dwt.dwt_enabled = tp_dwt_default_enabled(tp);
+	tp->dwt.timeout = DEFAULT_KEYBOARD_ACTIVITY_TIMEOUT_2;
 	device->base.config.dwt = &tp->dwt.config;
 }
 
@@ -3226,6 +3325,9 @@ tp_init_dwtp(struct tp_dispatch *tp, struct evdev_device *device)
 	tp->palm.config.set_enabled = tp_dwtp_config_set;
 	tp->palm.config.get_enabled = tp_dwtp_config_get;
 	tp->palm.config.get_default_enabled = tp_dwtp_config_get_default;
+	tp->palm.config.set_timeout = tp_dwtp_config_set_timeout;
+	tp->palm.config.get_timeout = tp_dwtp_config_get_timeout;
+	tp->palm.timeout = DEFAULT_TRACKPOINT_ACTIVITY_TIMEOUT;
 	device->base.config.dwtp = &tp->palm.config;
 }
 
@@ -3574,8 +3676,8 @@ tp_init_pressurepad(struct tp_dispatch *tp, struct evdev_device *device)
 	 *
 	 * See also #562
 	 */
-	if (libevdev_get_abs_resolution(device->evdev, ABS_MT_PRESSURE) != 0 ||
-	    evdev_device_has_model_quirk(device, QUIRK_MODEL_PRESSURE_PAD)) {
+	if (libevdev_has_property(device->evdev, INPUT_PROP_PRESSUREPAD) ||
+	    libevdev_get_abs_resolution(device->evdev, ABS_MT_PRESSURE) != 0) {
 		libevdev_disable_event_code(device->evdev, EV_ABS, ABS_MT_PRESSURE);
 		libevdev_disable_event_code(device->evdev, EV_ABS, ABS_PRESSURE);
 	}
@@ -3607,7 +3709,7 @@ tp_init(struct tp_dispatch *tp, struct evdev_device *device)
 		tp_init_pressure(tp, device);
 
 	/* 5 warnings per 24 hours should be enough */
-	ratelimit_init(&tp->jump.warning, h2us(24), 5);
+	ratelimit_init(&tp->jump.warning, usec_from_hours(24), 5);
 
 	/* Set the dpi to that of the x axis, because that's what we normalize
 	   to when needed*/
@@ -3742,7 +3844,7 @@ static bool
 tp_requires_rotation(struct tp_dispatch *tp, struct evdev_device *device)
 {
 	bool rotate = false;
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 	struct libinput *li = tp_libinput_context(tp);
 	WacomDeviceDatabase *db = NULL;
 	WacomDevice **devices = NULL, **d;

src/evdev-mt-touchpad.h

@@ -194,7 +194,7 @@ struct tp_touch {
 	bool has_ended; /* TRACKING_ID == -1 */
 	bool dirty;
 	struct device_coords point;
-	uint64_t initial_time;
+	usec_t initial_time;
 	int pressure;
 	bool is_tool_palm; /* MT_TOOL_PALM */
 	int major, minor;
@@ -213,7 +213,7 @@ struct tp_touch {
 
 	struct {
 		struct tp_history_point {
-			uint64_t time;
+			usec_t time;
 			struct device_coords point;
 		} samples[TOUCHPAD_HISTORY_LENGTH];
 		unsigned int index;
@@ -246,7 +246,7 @@ struct tp_touch {
 		struct libinput_timer timer;
 		struct device_coords initial;
 		bool has_moved; /* has moved more than threshold */
-		uint64_t initial_time;
+		usec_t initial_time;
 	} button;
 
 	struct {
@@ -267,7 +267,7 @@ struct tp_touch {
 	struct {
 		enum touch_palm_state state;
 		struct device_coords first; /* first coordinates if is_palm == true */
-		uint64_t time;              /* first timestamp if is_palm == true */
+		usec_t time;                /* first timestamp if is_palm == true */
 	} palm;
 
 	struct {
@@ -344,7 +344,7 @@ struct tp_dispatch {
 		bool enabled;
 		struct device_coords margin;
 		unsigned int other_event_count;
-		uint64_t last_motion_time;
+		usec_t last_motion_time;
 	} hysteresis;
 
 	struct {
@@ -361,7 +361,7 @@ struct tp_dispatch {
 		struct libinput_timer finger_count_switch_timer;
 		enum tp_gesture_state state;
 		struct tp_touch *touches[2];
-		uint64_t initial_time;
+		usec_t initial_time;
 		double initial_distance;
 		double prev_scale;
 		double angle;
@@ -370,7 +370,7 @@ struct tp_dispatch {
 		bool hold_enabled;
 
 		struct libinput_timer drag_3fg_timer;
-		uint64_t drag_3fg_release_time;
+		usec_t drag_3fg_release_time;
 	} gesture;
 
 	struct {
@@ -421,9 +421,9 @@ struct tp_dispatch {
 			bool h, v;
 		} active;
 		struct phys_coords vector;
-		uint64_t time_prev;
+		usec_t time_prev;
 		struct {
-			uint64_t h, v;
+			usec_t h, v;
 		} duration;
 	} scroll;
 
@@ -436,7 +436,7 @@ struct tp_dispatch {
 		struct libinput_timer timer;
 		enum tp_tap_state state;
 		uint32_t buttons_pressed;
-		uint64_t saved_press_time, saved_release_time;
+		usec_t saved_press_time, saved_release_time;
 
 		enum libinput_config_tap_button_map map;
 		enum libinput_config_tap_button_map want_map;
@@ -457,6 +457,7 @@ struct tp_dispatch {
 	struct {
 		struct libinput_device_config_dwtp config;
 		bool dwtp_enabled;
+		usec_t timeout;
 
 		int32_t right_edge; /* in device coordinates */
 		int32_t left_edge;  /* in device coordinates */
@@ -465,7 +466,7 @@ struct tp_dispatch {
 		bool trackpoint_active;
 		struct libinput_event_listener trackpoint_listener;
 		struct libinput_timer trackpoint_timer;
-		uint64_t trackpoint_last_event_time;
+		usec_t trackpoint_last_event_time;
 		uint32_t trackpoint_event_count;
 		bool monitor_trackpoint;
 
@@ -486,6 +487,7 @@ struct tp_dispatch {
 	struct {
 		struct libinput_device_config_dwt config;
 		bool dwt_enabled;
+		usec_t timeout;
 
 		/* We have to allow for more than one device node to be the
 		 * internal dwt keyboard (Razer Blade). But they're the same
@@ -498,7 +500,7 @@ struct tp_dispatch {
 		unsigned long mod_mask[NLONGS(KEY_CNT)];
 		bool keyboard_active;
 		struct libinput_timer keyboard_timer;
-		uint64_t keyboard_last_press_time;
+		usec_t keyboard_last_press_time;
 	} dwt;
 
 	struct {
@@ -529,8 +531,8 @@ struct tp_dispatch {
 
 		struct msc_timestamp {
 			enum tp_jump_state state;
-			uint32_t interval;
-			uint32_t now;
+			usec_t interval;
+			usec_t now;
 		} msc_timestamp;
 	} quirks;
 
@@ -614,17 +616,17 @@ tp_get_delta(struct tp_touch *t);
 struct normalized_coords
 tp_filter_motion(struct tp_dispatch *tp,
 		 const struct device_float_coords *unaccelerated,
-		 uint64_t time);
+		 usec_t time);
 
 struct normalized_coords
 tp_filter_motion_unaccelerated(struct tp_dispatch *tp,
 			       const struct device_float_coords *unaccelerated,
-			       uint64_t time);
+			       usec_t time);
 
 struct normalized_coords
 tp_filter_scroll(struct tp_dispatch *tp,
 		 const struct device_float_coords *unaccelerated,
-		 uint64_t time);
+		 usec_t time);
 
 bool
 tp_touch_active(const struct tp_dispatch *tp, const struct tp_touch *t);
@@ -633,7 +635,7 @@ bool
 tp_touch_active_for_gesture(const struct tp_dispatch *tp, const struct tp_touch *t);
 
 int
-tp_tap_handle_state(struct tp_dispatch *tp, uint64_t time);
+tp_tap_handle_state(struct tp_dispatch *tp, usec_t time);
 
 void
 tp_tap_post_process_state(struct tp_dispatch *tp);
@@ -659,16 +661,16 @@ void
 tp_remove_buttons(struct tp_dispatch *tp);
 
 void
-tp_process_button(struct tp_dispatch *tp, const struct evdev_event *e, uint64_t time);
+tp_process_button(struct tp_dispatch *tp, const struct evdev_event *e, usec_t time);
 
 void
-tp_release_all_buttons(struct tp_dispatch *tp, uint64_t time);
+tp_release_all_buttons(struct tp_dispatch *tp, usec_t time);
 
 int
-tp_post_button_events(struct tp_dispatch *tp, uint64_t time);
+tp_post_button_events(struct tp_dispatch *tp, usec_t time);
 
 void
-tp_button_handle_state(struct tp_dispatch *tp, uint64_t time);
+tp_button_handle_state(struct tp_dispatch *tp, usec_t time);
 
 bool
 tp_button_touch_active(const struct tp_dispatch *tp, const struct tp_touch *t);
@@ -678,13 +680,13 @@ tp_button_is_inside_softbutton_area(const struct tp_dispatch *tp,
 				    const struct tp_touch *t);
 
 void
-tp_release_all_taps(struct tp_dispatch *tp, uint64_t now);
+tp_release_all_taps(struct tp_dispatch *tp, usec_t now);
 
 void
-tp_tap_suspend(struct tp_dispatch *tp, uint64_t time);
+tp_tap_suspend(struct tp_dispatch *tp, usec_t time);
 
 void
-tp_tap_resume(struct tp_dispatch *tp, uint64_t time);
+tp_tap_resume(struct tp_dispatch *tp, usec_t time);
 
 bool
 tp_tap_dragging(const struct tp_dispatch *tp);
@@ -699,13 +701,13 @@ void
 tp_remove_edge_scroll(struct tp_dispatch *tp);
 
 void
-tp_edge_scroll_handle_state(struct tp_dispatch *tp, uint64_t time);
+tp_edge_scroll_handle_state(struct tp_dispatch *tp, usec_t time);
 
 int
-tp_edge_scroll_post_events(struct tp_dispatch *tp, uint64_t time);
+tp_edge_scroll_post_events(struct tp_dispatch *tp, usec_t time);
 
 void
-tp_edge_scroll_stop_events(struct tp_dispatch *tp, uint64_t time);
+tp_edge_scroll_stop_events(struct tp_dispatch *tp, usec_t time);
 
 int
 tp_edge_scroll_touch_active(const struct tp_dispatch *tp, const struct tp_touch *t);
@@ -720,25 +722,25 @@ void
 tp_remove_gesture(struct tp_dispatch *tp);
 
 void
-tp_gesture_stop(struct tp_dispatch *tp, uint64_t time);
+tp_gesture_stop(struct tp_dispatch *tp, usec_t time);
 
 void
-tp_gesture_cancel(struct tp_dispatch *tp, uint64_t time);
+tp_gesture_cancel(struct tp_dispatch *tp, usec_t time);
 
 void
-tp_gesture_cancel_motion_gestures(struct tp_dispatch *tp, uint64_t time);
+tp_gesture_cancel_motion_gestures(struct tp_dispatch *tp, usec_t time);
 
 void
-tp_gesture_update_finger_state(struct tp_dispatch *tp, uint64_t time);
+tp_gesture_update_finger_state(struct tp_dispatch *tp, usec_t time);
 
 void
-tp_gesture_post_events(struct tp_dispatch *tp, uint64_t time, bool ignore_motion);
+tp_gesture_post_events(struct tp_dispatch *tp, usec_t time, bool ignore_motion);
 
 void
-tp_gesture_stop_twofinger_scroll(struct tp_dispatch *tp, uint64_t time);
+tp_gesture_stop_twofinger_scroll(struct tp_dispatch *tp, usec_t time);
 
 void
-tp_gesture_tap_timeout(struct tp_dispatch *tp, uint64_t time);
+tp_gesture_tap_timeout(struct tp_dispatch *tp, usec_t time);
 
 void
 tp_clickpad_middlebutton_apply_config(struct evdev_device *device);
@@ -759,7 +761,7 @@ void
 tp_thumb_suppress(struct tp_dispatch *tp, struct tp_touch *t);
 
 void
-tp_thumb_update_touch(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time);
+tp_thumb_update_touch(struct tp_dispatch *tp, struct tp_touch *t, usec_t time);
 
 void
 tp_detect_thumb_while_moving(struct tp_dispatch *tp);

src/evdev-plugin.c

@@ -29,72 +29,11 @@
 #include "evdev-plugin.h"
 #include "evdev.h"
 
-_unused_ static inline void
-evdev_print_frame(struct evdev_device *device,
-		  struct evdev_frame *frame,
-		  uint64_t time_in_us)
-{
-	static uint32_t offset = 0;
-	static uint32_t last_time = 0;
-	uint32_t time = us2ms(time_in_us);
-
-	if (offset == 0) {
-		offset = time;
-		last_time = time - offset;
-	}
-
-	time -= offset;
-
-	size_t nevents;
-	struct evdev_event *events = evdev_frame_get_events(frame, &nevents);
-
-	for (size_t i = 0; i < nevents; i++) {
-		struct evdev_event *e = &events[i];
-
-		switch (evdev_usage_enum(e->usage)) {
-		case EVDEV_SYN_REPORT:
-			evdev_log_debug(
-				device,
-				"%u.%03u ----------------- EV_SYN ----------------- +%ums\n",
-				time / 1000,
-				time % 1000,
-				time - last_time);
-
-			last_time = time;
-			break;
-		case EVDEV_MSC_SERIAL:
-			evdev_log_debug(device,
-					"%u.%03u %-16s %-16s %#010x\n",
-					time / 1000,
-					time % 1000,
-					evdev_event_get_type_name(e),
-					evdev_event_get_code_name(e),
-					e->value);
-			break;
-		default:
-			evdev_log_debug(device,
-					"%u.%03u %-16s %-20s %4d\n",
-					time / 1000,
-					time % 1000,
-					evdev_event_get_type_name(e),
-					evdev_event_get_code_name(e),
-					e->value);
-			break;
-		}
-	}
-}
-
 static inline void
-evdev_process_frame(struct evdev_device *device,
-		    struct evdev_frame *frame,
-		    uint64_t time)
+evdev_process_frame(struct evdev_device *device, struct evdev_frame *frame, usec_t time)
 {
 	struct evdev_dispatch *dispatch = device->dispatch;
 
-#if EVENT_DEBUGGING
-	evdev_print_frame(device, frame, time);
-#endif
-
 	libinput_timer_flush(evdev_libinput_context(device), time);
 
 	dispatch->interface->process(dispatch, device, frame, time);
@@ -106,7 +45,7 @@ evdev_device_dispatch_frame(struct libinput_plugin *plugin,
 			    struct evdev_frame *frame)
 {
 	struct evdev_device *device = evdev_device(libinput_device);
-	uint64_t time = evdev_frame_get_time(frame);
+	usec_t time = evdev_frame_get_time(frame);
 	evdev_process_frame(device, frame, time);
 
 	/* Discard event to make the plugin system aware we're done */

src/evdev-tablet-pad-leds.c

@@ -28,7 +28,7 @@
 
 #include "evdev-tablet-pad.h"
 
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 #include <libwacom/libwacom.h>
 #endif
 
@@ -114,7 +114,7 @@ pad_led_destroy(struct libinput *libinput, struct pad_mode_led *led)
 	free(led);
 }
 
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 static inline struct pad_mode_led *
 pad_led_new(struct libinput *libinput, const char *prefix, int group, int mode)
 {
@@ -198,7 +198,7 @@ pad_get_mode_group(struct pad_dispatch *pad, unsigned int index)
 	return NULL;
 }
 
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 static inline bool
 is_litest_device(struct evdev_device *device)
 {
@@ -618,7 +618,7 @@ pad_init_leds(struct pad_dispatch *pad, struct evdev_device *device, WacomDevice
 	}
 
 	/* If libwacom fails, we init one fallback group anyway */
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 	rc = pad_init_leds_from_libwacom(pad, device, wacom);
 #endif
 	if (rc != 0)

src/evdev-tablet-pad.c

@@ -31,7 +31,7 @@
 
 #include "evdev-tablet-pad.h"
 
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 #include <libwacom/libwacom.h>
 #endif
 
@@ -99,7 +99,7 @@ static void
 pad_process_relative(struct pad_dispatch *pad,
 		     struct evdev_device *device,
 		     struct evdev_event *e,
-		     uint64_t time)
+		     usec_t time)
 {
 	switch (evdev_usage_enum(e->usage)) {
 	case EVDEV_REL_DIAL:
@@ -172,7 +172,7 @@ static void
 pad_process_absolute(struct pad_dispatch *pad,
 		     struct evdev_device *device,
 		     struct evdev_event *e,
-		     uint64_t time)
+		     usec_t time)
 {
 	enum pad_axes axis = PAD_AXIS_NONE;
 
@@ -303,11 +303,15 @@ pad_dial_get_mode_group(struct pad_dispatch *pad, unsigned int dial)
 	struct libinput_tablet_pad_mode_group *group;
 
 	list_for_each(group, &pad->modes.mode_group_list, link) {
+		assert(group != NULL); /* for clang-tidy */
 		if (libinput_tablet_pad_mode_group_has_dial(group, dial))
 			return group;
 	}
 
-	assert(!"Unable to find dial mode group");
+	evdev_log_bug_libinput_ratelimit(pad->device,
+					 &pad->modes.group_not_found,
+					 "Unable to find mode group for dial %d\n",
+					 dial);
 
 	return NULL;
 }
@@ -318,11 +322,15 @@ pad_ring_get_mode_group(struct pad_dispatch *pad, unsigned int ring)
 	struct libinput_tablet_pad_mode_group *group;
 
 	list_for_each(group, &pad->modes.mode_group_list, link) {
+		assert(group != NULL); /* for clang-tidy */
 		if (libinput_tablet_pad_mode_group_has_ring(group, ring))
 			return group;
 	}
 
-	assert(!"Unable to find ring mode group");
+	evdev_log_bug_libinput_ratelimit(pad->device,
+					 &pad->modes.group_not_found,
+					 "Unable to find mode group for ring %d\n",
+					 ring);
 
 	return NULL;
 }
@@ -333,11 +341,15 @@ pad_strip_get_mode_group(struct pad_dispatch *pad, unsigned int strip)
 	struct libinput_tablet_pad_mode_group *group;
 
 	list_for_each(group, &pad->modes.mode_group_list, link) {
+		assert(group != NULL); /* for clang-tidy */
 		if (libinput_tablet_pad_mode_group_has_strip(group, strip))
 			return group;
 	}
 
-	assert(!"Unable to find strip mode group");
+	evdev_log_bug_libinput_ratelimit(pad->device,
+					 &pad->modes.group_not_found,
+					 "Unable to find mode group for strip %d\n",
+					 strip);
 
 	return NULL;
 }
@@ -345,7 +357,7 @@ pad_strip_get_mode_group(struct pad_dispatch *pad, unsigned int strip)
 static void
 pad_check_notify_axes(struct pad_dispatch *pad,
 		      struct evdev_device *device,
-		      uint64_t time)
+		      usec_t time)
 {
 	struct libinput_device *base = &device->base;
 	struct libinput_tablet_pad_mode_group *group;
@@ -362,12 +374,14 @@ pad_check_notify_axes(struct pad_dispatch *pad,
 	 * so we can't set a source */
 	if (pad->changed_axes & PAD_AXIS_DIAL1) {
 		group = pad_dial_get_mode_group(pad, 0);
-		tablet_pad_notify_dial(base, time, 0, pad->dials.dial1, group);
+		if (group)
+			tablet_pad_notify_dial(base, time, 0, pad->dials.dial1, group);
 	}
 
 	if (pad->changed_axes & PAD_AXIS_DIAL2) {
 		group = pad_dial_get_mode_group(pad, 1);
-		tablet_pad_notify_dial(base, time, 1, pad->dials.dial2, group);
+		if (group)
+			tablet_pad_notify_dial(base, time, 1, pad->dials.dial2, group);
 	}
 
 	if (pad->changed_axes & PAD_AXIS_RING1) {
@@ -376,12 +390,13 @@ pad_check_notify_axes(struct pad_dispatch *pad,
 			value = -1.0;
 
 		group = pad_ring_get_mode_group(pad, 0);
-		tablet_pad_notify_ring(base,
-				       time,
-				       0,
-				       value,
-				       LIBINPUT_TABLET_PAD_RING_SOURCE_FINGER,
-				       group);
+		if (group)
+			tablet_pad_notify_ring(base,
+					       time,
+					       0,
+					       value,
+					       LIBINPUT_TABLET_PAD_RING_SOURCE_FINGER,
+					       group);
 	}
 
 	if (pad->changed_axes & PAD_AXIS_RING2) {
@@ -390,12 +405,13 @@ pad_check_notify_axes(struct pad_dispatch *pad,
 			value = -1.0;
 
 		group = pad_ring_get_mode_group(pad, 1);
-		tablet_pad_notify_ring(base,
-				       time,
-				       1,
-				       value,
-				       LIBINPUT_TABLET_PAD_RING_SOURCE_FINGER,
-				       group);
+		if (group)
+			tablet_pad_notify_ring(base,
+					       time,
+					       1,
+					       value,
+					       LIBINPUT_TABLET_PAD_RING_SOURCE_FINGER,
+					       group);
 	}
 
 	if (pad->changed_axes & PAD_AXIS_STRIP1) {
@@ -404,12 +420,13 @@ pad_check_notify_axes(struct pad_dispatch *pad,
 			value = -1.0;
 
 		group = pad_strip_get_mode_group(pad, 0);
-		tablet_pad_notify_strip(base,
-					time,
-					0,
-					value,
-					LIBINPUT_TABLET_PAD_STRIP_SOURCE_FINGER,
-					group);
+		if (group)
+			tablet_pad_notify_strip(base,
+						time,
+						0,
+						value,
+						LIBINPUT_TABLET_PAD_STRIP_SOURCE_FINGER,
+						group);
 	}
 
 	if (pad->changed_axes & PAD_AXIS_STRIP2) {
@@ -418,12 +435,13 @@ pad_check_notify_axes(struct pad_dispatch *pad,
 			value = -1.0;
 
 		group = pad_strip_get_mode_group(pad, 1);
-		tablet_pad_notify_strip(base,
-					time,
-					1,
-					value,
-					LIBINPUT_TABLET_PAD_STRIP_SOURCE_FINGER,
-					group);
+		if (group)
+			tablet_pad_notify_strip(base,
+						time,
+						1,
+						value,
+						LIBINPUT_TABLET_PAD_STRIP_SOURCE_FINGER,
+						group);
 	}
 
 	pad->changed_axes = PAD_AXIS_NONE;
@@ -434,7 +452,7 @@ static void
 pad_process_key(struct pad_dispatch *pad,
 		struct evdev_device *device,
 		struct evdev_event *e,
-		uint64_t time)
+		usec_t time)
 {
 	uint32_t is_press = e->value != 0;
 
@@ -463,7 +481,7 @@ pad_button_get_mode_group(struct pad_dispatch *pad, unsigned int button)
 static void
 pad_notify_button_mask(struct pad_dispatch *pad,
 		       struct evdev_device *device,
-		       uint64_t time,
+		       usec_t time,
 		       const struct button_state *buttons,
 		       enum libinput_button_state state)
 {
@@ -519,7 +537,7 @@ pad_notify_button_mask(struct pad_dispatch *pad,
 static void
 pad_notify_buttons(struct pad_dispatch *pad,
 		   struct evdev_device *device,
-		   uint64_t time,
+		   usec_t time,
 		   enum libinput_button_state state)
 {
 	struct button_state buttons;
@@ -547,7 +565,7 @@ pad_change_to_left_handed(struct evdev_device *device)
 }
 
 static void
-pad_flush(struct pad_dispatch *pad, struct evdev_device *device, uint64_t time)
+pad_flush(struct pad_dispatch *pad, struct evdev_device *device, usec_t time)
 {
 	if (pad_has_status(pad, PAD_AXES_UPDATED)) {
 		pad_check_notify_axes(pad, device, time);
@@ -576,7 +594,7 @@ static void
 pad_process_event(struct evdev_dispatch *dispatch,
 		  struct evdev_device *device,
 		  struct evdev_event *e,
-		  uint64_t time)
+		  usec_t time)
 {
 	struct pad_dispatch *pad = pad_dispatch(dispatch);
 
@@ -611,7 +629,7 @@ static void
 pad_process(struct evdev_dispatch *dispatch,
 	    struct evdev_device *device,
 	    struct evdev_frame *frame,
-	    uint64_t time)
+	    usec_t time)
 {
 	size_t nevents;
 	struct evdev_event *events = evdev_frame_get_events(frame, &nevents);
@@ -667,7 +685,7 @@ pad_init_buttons_from_libwacom(struct pad_dispatch *pad,
 			       WacomDevice *tablet)
 {
 	bool rc = false;
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 
 	if (tablet) {
 		int num_buttons = libwacom_get_num_buttons(tablet);
@@ -759,7 +777,7 @@ pad_init_left_handed(struct evdev_device *device, WacomDevice *wacom)
 {
 	bool has_left_handed = true;
 
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 	has_left_handed = !wacom || libwacom_is_reversible(wacom);
 #endif
 	if (has_left_handed)
@@ -772,7 +790,7 @@ pad_init(struct pad_dispatch *pad, struct evdev_device *device)
 	int rc = 1;
 	struct libinput *li = evdev_libinput_context(device);
 	WacomDevice *wacom = NULL;
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 	WacomDeviceDatabase *db = libinput_libwacom_ref(li);
 	if (db) {
 		char event_path[64];
@@ -804,6 +822,7 @@ pad_init(struct pad_dispatch *pad, struct evdev_device *device)
 	pad->device = device;
 	pad->status = PAD_NONE;
 	pad->changed_axes = PAD_AXIS_NONE;
+	ratelimit_init(&pad->modes.group_not_found, usec_from_hours(1), 3);
 
 	/* We expect the kernel to either give us both axes as hires or neither.
 	 * Getting one is a kernel bug we don't need to care about */
@@ -823,9 +842,9 @@ pad_init(struct pad_dispatch *pad, struct evdev_device *device)
 	rc = pad_init_leds(pad, device, wacom);
 
 	/* at most 5 "Multiple EV_ABS events" log messages per hour */
-	ratelimit_init(&pad->duplicate_abs_limit, s2us(60 * 60), 5);
+	ratelimit_init(&pad->duplicate_abs_limit, usec_from_seconds(60 * 60), 5);
 
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 	if (wacom)
 		libwacom_destroy(wacom);
 	if (db)

src/evdev-tablet-pad.h

@@ -26,7 +26,7 @@
 
 #include "evdev.h"
 
-#if !HAVE_LIBWACOM
+#ifndef HAVE_LIBWACOM
 typedef void *WacomDevice;
 #endif
 
@@ -87,6 +87,7 @@ struct pad_dispatch {
 
 	struct {
 		struct list mode_group_list;
+		struct ratelimit group_not_found;
 	} modes;
 
 	struct ratelimit duplicate_abs_limit;

src/evdev-tablet.c

@@ -31,7 +31,7 @@
 
 #include "evdev-tablet.h"
 
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 #include <libwacom/libwacom.h>
 #else
 typedef void *WacomStylus;
@@ -197,7 +197,7 @@ static void
 tablet_process_absolute(struct tablet_dispatch *tablet,
 			struct evdev_device *device,
 			struct evdev_event *e,
-			uint64_t time)
+			usec_t time)
 {
 	enum libinput_tablet_tool_axis axis;
 
@@ -557,7 +557,7 @@ tablet_tool_process_delta(struct tablet_dispatch *tablet,
 			  struct libinput_tablet_tool *tool,
 			  const struct evdev_device *device,
 			  struct tablet_axes *axes,
-			  uint64_t time)
+			  usec_t time)
 {
 	const struct normalized_coords zero = { 0.0, 0.0 };
 	struct device_coords delta = { 0, 0 };
@@ -759,7 +759,7 @@ tablet_check_notify_axes(struct tablet_dispatch *tablet,
 			 struct evdev_device *device,
 			 struct libinput_tablet_tool *tool,
 			 struct tablet_axes *axes_out,
-			 uint64_t time)
+			 usec_t time)
 {
 	struct tablet_axes axes = { 0 };
 	const char tmp[sizeof(tablet->changed_axes)] = { 0 };
@@ -884,7 +884,7 @@ static void
 tablet_process_key(struct tablet_dispatch *tablet,
 		   struct evdev_device *device,
 		   struct evdev_event *e,
-		   uint64_t time)
+		   usec_t time)
 {
 	enum libinput_tablet_tool_type type;
 
@@ -930,7 +930,7 @@ static void
 tablet_process_relative(struct tablet_dispatch *tablet,
 			struct evdev_device *device,
 			struct evdev_event *e,
-			uint64_t time)
+			usec_t time)
 {
 	enum libinput_tablet_tool_axis axis;
 
@@ -960,7 +960,7 @@ static void
 tablet_process_misc(struct tablet_dispatch *tablet,
 		    struct evdev_device *device,
 		    struct evdev_event *e,
-		    uint64_t time)
+		    usec_t time)
 {
 	switch (evdev_usage_enum(e->usage)) {
 	case EVDEV_MSC_SERIAL:
@@ -1004,7 +1004,7 @@ tool_set_bits_from_libwacom(const struct tablet_dispatch *tablet,
 			    const WacomStylus *s)
 {
 	bool rc = false;
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 	int code;
 	WacomStylusType type;
 	WacomAxisTypeFlags axes;
@@ -1221,7 +1221,7 @@ pressure_range_set(struct libinput_tablet_tool *tool, double min, double max)
 
 	tool->pressure.wanted_range.min = min;
 	tool->pressure.wanted_range.max = max;
-	tool->pressure.has_configured_range = true;
+	tool->pressure.has_configured_range = min != 0.0 || max != 1.0;
 
 	return LIBINPUT_CONFIG_STATUS_SUCCESS;
 }
@@ -1272,10 +1272,13 @@ static void
 eraser_button_toggle(struct libinput_tablet_tool *tool)
 {
 	struct libinput_device *libinput_device = tool->last_device;
-	struct evdev_device *device = evdev_device(libinput_device);
-	struct tablet_dispatch *tablet = tablet_dispatch(device->dispatch);
 
-	tablet_tool_apply_eraser_button(tablet, tool);
+	if (libinput_device) {
+		struct evdev_device *device = evdev_device(libinput_device);
+		struct tablet_dispatch *tablet = tablet_dispatch(device->dispatch);
+
+		tablet_tool_apply_eraser_button(tablet, tool);
+	}
 }
 
 static enum libinput_config_status
@@ -1296,7 +1299,7 @@ eraser_button_set_mode(struct libinput_tablet_tool *tool,
 static enum libinput_config_eraser_button_mode
 eraser_button_get_mode(struct libinput_tablet_tool *tool)
 {
-	return tool->eraser_button.mode;
+	return tool->eraser_button.want_mode;
 }
 
 static enum libinput_config_eraser_button_mode
@@ -1330,7 +1333,7 @@ eraser_button_set_button(struct libinput_tablet_tool *tool, uint32_t button)
 static unsigned int
 eraser_button_get_button(struct libinput_tablet_tool *tool)
 {
-	return tool->eraser_button.button;
+	return tool->eraser_button.want_button;
 }
 
 static unsigned int
@@ -1369,7 +1372,7 @@ tool_init_eraser_button(struct tablet_dispatch *tablet,
 	if (libinput_tablet_tool_get_type(tool) != LIBINPUT_TABLET_TOOL_TYPE_PEN)
 		return;
 
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 	/* libwacom's API is a bit terrible here:
 	 * - has_eraser is true on styli that have a separate eraser, all
 	 *   those are INVERT so we can exclude them
@@ -1400,7 +1403,7 @@ tablet_new_tool(struct tablet_dispatch *tablet,
 {
 	struct libinput_tablet_tool *tool = zalloc(sizeof *tool);
 	const WacomStylus *s = NULL;
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 	WacomDeviceDatabase *db;
 
 	db = tablet_libinput_context(tablet)->libwacom.db;
@@ -1519,7 +1522,7 @@ tablet_get_tool(struct tablet_dispatch *tablet,
 static void
 tablet_notify_button_mask(struct tablet_dispatch *tablet,
 			  struct evdev_device *device,
-			  uint64_t time,
+			  usec_t time,
 			  struct libinput_tablet_tool *tool,
 			  const struct button_state *buttons,
 			  enum libinput_button_state state)
@@ -1553,7 +1556,7 @@ tablet_notify_button_mask(struct tablet_dispatch *tablet,
 static void
 tablet_notify_buttons(struct tablet_dispatch *tablet,
 		      struct evdev_device *device,
-		      uint64_t time,
+		      usec_t time,
 		      struct libinput_tablet_tool *tool,
 		      enum libinput_button_state state)
 {
@@ -1762,8 +1765,9 @@ detect_pressure_offset(struct tablet_dispatch *tablet,
 	}
 
 	evdev_log_info(device,
-		       "Pressure offset detected on tool %s (serial %#x).  "
+		       "Pressure offset of %d%% detected on tool %s (serial %#x).  "
 		       "See %s/tablet-support.html\n",
+		       (int)(pressure_offset_as_double(offset) * 100),
 		       tablet_tool_type_to_string(tool->type),
 		       tool->serial,
 		       HTTP_DOC_LINK);
@@ -1913,7 +1917,7 @@ tablet_calculate_arbitration_rect(struct tablet_dispatch *tablet)
 static inline void
 tablet_update_touch_device_rect(struct tablet_dispatch *tablet,
 				const struct tablet_axes *axes,
-				uint64_t time)
+				usec_t time)
 {
 	struct evdev_dispatch *dispatch;
 	struct phys_rect rect = { 0 };
@@ -1937,7 +1941,7 @@ tablet_send_proximity_in(struct tablet_dispatch *tablet,
 			 struct libinput_tablet_tool *tool,
 			 struct evdev_device *device,
 			 struct tablet_axes *axes,
-			 uint64_t time)
+			 usec_t time)
 {
 	if (!tablet_has_status(tablet, TABLET_TOOL_ENTERING_PROXIMITY))
 		return false;
@@ -1965,7 +1969,7 @@ tablet_send_proximity_out(struct tablet_dispatch *tablet,
 			  struct libinput_tablet_tool *tool,
 			  struct evdev_device *device,
 			  struct tablet_axes *axes,
-			  uint64_t time)
+			  usec_t time)
 {
 	if (tablet_has_status(tablet, TABLET_TOOL_LEAVING_PROXIMITY) &&
 	    !tablet_has_status(tablet, TABLET_TOOL_OUTSIDE_AREA)) {
@@ -1985,7 +1989,7 @@ tablet_send_tip(struct tablet_dispatch *tablet,
 		struct libinput_tablet_tool *tool,
 		struct evdev_device *device,
 		struct tablet_axes *axes,
-		uint64_t time)
+		usec_t time)
 {
 	if (tablet_has_status(tablet, TABLET_TOOL_ENTERING_CONTACT)) {
 		tablet_notify_tip(&device->base,
@@ -2035,7 +2039,7 @@ tablet_send_axes(struct tablet_dispatch *tablet,
 		 struct libinput_tablet_tool *tool,
 		 struct evdev_device *device,
 		 struct tablet_axes *axes,
-		 uint64_t time)
+		 usec_t time)
 {
 	enum libinput_tablet_tool_tip_state tip_state;
 
@@ -2065,7 +2069,7 @@ static inline void
 tablet_send_buttons(struct tablet_dispatch *tablet,
 		    struct libinput_tablet_tool *tool,
 		    struct evdev_device *device,
-		    uint64_t time)
+		    usec_t time)
 {
 	if (tablet_has_status(tablet, TABLET_BUTTONS_RELEASED)) {
 		tablet_notify_buttons(tablet,
@@ -2090,7 +2094,7 @@ static void
 tablet_send_events(struct tablet_dispatch *tablet,
 		   struct libinput_tablet_tool *tool,
 		   struct evdev_device *device,
-		   uint64_t time)
+		   usec_t time)
 {
 	struct tablet_axes axes = { 0 };
 
@@ -2127,7 +2131,7 @@ tablet_send_events(struct tablet_dispatch *tablet,
 static void
 tablet_update_tool_state(struct tablet_dispatch *tablet,
 			 struct evdev_device *device,
-			 uint64_t time)
+			 usec_t time)
 {
 	enum libinput_tablet_tool_type type;
 	uint32_t changed;
@@ -2191,18 +2195,18 @@ update_pressure_range(struct tablet_dispatch *tablet,
 	threshold->threshold.upper = hi;
 	threshold->threshold.lower = lo;
 
-	if (threshold->has_offset)
-		set_pressure_offset(threshold, threshold->offset);
-
 	/* Disable any heuristics */
 	if (tool->pressure.has_configured_range) {
 		threshold->has_offset = true;
 		threshold->heuristic_state = PRESSURE_HEURISTIC_STATE_DONE;
+		threshold->offset = pressure_offset_from_double(0.0);
+	} else if (threshold->has_offset) {
+		set_pressure_offset(threshold, threshold->offset);
 	}
 }
 
 static void
-tablet_flush(struct tablet_dispatch *tablet, struct evdev_device *device, uint64_t time)
+tablet_flush(struct tablet_dispatch *tablet, struct evdev_device *device, usec_t time)
 {
 	struct libinput_tablet_tool *tool;
 
@@ -2286,7 +2290,7 @@ static inline void
 tablet_set_touch_device_enabled(struct tablet_dispatch *tablet,
 				enum evdev_arbitration_state which,
 				const struct phys_rect *rect,
-				uint64_t time)
+				usec_t time)
 {
 	struct evdev_device *touch_device = tablet->touch_device;
 	struct evdev_dispatch *dispatch;
@@ -2308,7 +2312,7 @@ tablet_set_touch_device_enabled(struct tablet_dispatch *tablet,
 static inline void
 tablet_toggle_touch_device(struct tablet_dispatch *tablet,
 			   struct evdev_device *tablet_device,
-			   uint64_t time)
+			   usec_t time)
 {
 	enum evdev_arbitration_state which;
 	struct phys_rect r = { 0 };
@@ -2355,7 +2359,7 @@ static void
 tablet_process_event(struct evdev_dispatch *dispatch,
 		     struct evdev_device *device,
 		     struct evdev_event *e,
-		     uint64_t time)
+		     usec_t time)
 {
 	struct tablet_dispatch *tablet = tablet_dispatch(dispatch);
 
@@ -2391,7 +2395,7 @@ static void
 tablet_process(struct evdev_dispatch *dispatch,
 	       struct evdev_device *device,
 	       struct evdev_frame *frame,
-	       uint64_t time)
+	       usec_t time)
 {
 	size_t nevents;
 	struct evdev_event *events = evdev_frame_get_events(frame, &nevents);
@@ -2406,7 +2410,7 @@ tablet_suspend(struct evdev_dispatch *dispatch, struct evdev_device *device)
 {
 	struct tablet_dispatch *tablet = tablet_dispatch(dispatch);
 	struct libinput *li = tablet_libinput_context(tablet);
-	uint64_t now = libinput_now(li);
+	usec_t now = libinput_now(li);
 
 	tablet_set_touch_device_enabled(tablet, ARBITRATION_NOT_ACTIVE, NULL, now);
 
@@ -2447,6 +2451,8 @@ tablet_destroy(struct evdev_dispatch *dispatch)
 	struct libinput *li = tablet_libinput_context(tablet);
 
 	list_for_each_safe(tool, &tablet->tool_list, link) {
+		list_remove(&tool->link);
+		list_init(&tool->link); /* unref may list_remove() too */
 		libinput_tablet_tool_unref(tool);
 	}
 
@@ -2788,7 +2794,7 @@ tablet_init_left_handed(struct evdev_device *device, WacomDevice *wacom)
 {
 	bool has_left_handed = true;
 
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 	has_left_handed = !wacom || libwacom_is_reversible(wacom);
 #endif
 	if (has_left_handed)
@@ -2798,7 +2804,7 @@ tablet_init_left_handed(struct evdev_device *device, WacomDevice *wacom)
 static inline bool
 tablet_is_display_tablet(WacomDevice *wacom)
 {
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 	return !wacom ||
 	       (libwacom_get_integration_flags(wacom) &
 		(WACOM_DEVICE_INTEGRATED_SYSTEM | WACOM_DEVICE_INTEGRATED_DISPLAY));
@@ -2810,7 +2816,7 @@ tablet_is_display_tablet(WacomDevice *wacom)
 static inline bool
 tablet_is_aes(struct evdev_device *device, WacomDevice *wacom)
 {
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 	int vid = evdev_device_get_id_vendor(device);
 	/* Wacom-specific check for whether smoothing is required:
 	 * libwacom keeps all the AES pens in a single group, so any device
@@ -2943,7 +2949,7 @@ tablet_init(struct tablet_dispatch *tablet, struct evdev_device *device)
 	enum libinput_tablet_tool_axis axis;
 	int rc = -1;
 	WacomDevice *wacom = NULL;
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 	WacomDeviceDatabase *db = libinput_libwacom_ref(li);
 	if (db) {
 		char event_path[64];
@@ -3018,7 +3024,7 @@ tablet_init(struct tablet_dispatch *tablet, struct evdev_device *device)
 
 	rc = 0;
 out:
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 	if (wacom)
 		libwacom_destroy(wacom);
 	if (db)

src/evdev-tablet.h

@@ -27,7 +27,7 @@
 
 #include "evdev.h"
 
-#if !HAVE_LIBWACOM
+#ifndef HAVE_LIBWACOM
 typedef void *WacomDevice;
 #endif
 

src/evdev-totem.c

@@ -110,7 +110,7 @@ totem_new_tool(struct totem_dispatch *totem)
 static inline void
 totem_set_touch_device_enabled(struct totem_dispatch *totem,
 			       bool enable_touch_device,
-			       uint64_t time)
+			       usec_t time)
 {
 	struct evdev_device *touch_device = totem->touch_device;
 	struct evdev_dispatch *dispatch;
@@ -183,7 +183,7 @@ static void
 totem_process_key(struct totem_dispatch *totem,
 		  struct evdev_device *device,
 		  struct evdev_event *e,
-		  uint64_t time)
+		  usec_t time)
 {
 	/* ignore kernel key repeat */
 	if (e->value == 2)
@@ -205,7 +205,7 @@ static void
 totem_process_abs(struct totem_dispatch *totem,
 		  struct evdev_device *device,
 		  struct evdev_event *e,
-		  uint64_t time)
+		  usec_t time)
 {
 	struct totem_slot *slot = &totem->slots[totem->slot];
 
@@ -263,7 +263,7 @@ totem_slot_fetch_axes(struct totem_dispatch *totem,
 		      struct totem_slot *slot,
 		      struct libinput_tablet_tool *tool,
 		      struct tablet_axes *axes_out,
-		      uint64_t time)
+		      usec_t time)
 {
 	struct evdev_device *device = totem->device;
 	const char tmp[sizeof(slot->changed_axes)] = { 0 };
@@ -358,7 +358,7 @@ slot_axes_initialize(struct totem_dispatch *totem, struct totem_slot *slot)
 static enum totem_slot_state
 totem_handle_slot_state(struct totem_dispatch *totem,
 			struct totem_slot *slot,
-			uint64_t time)
+			usec_t time)
 {
 	struct evdev_device *device = totem->device;
 	struct tablet_axes axes;
@@ -493,7 +493,7 @@ totem_handle_slot_state(struct totem_dispatch *totem,
 }
 
 static enum totem_slot_state
-totem_handle_state(struct totem_dispatch *totem, uint64_t time)
+totem_handle_state(struct totem_dispatch *totem, usec_t time)
 {
 	enum totem_slot_state global_state = SLOT_STATE_NONE;
 
@@ -514,7 +514,7 @@ static void
 totem_process_event(struct evdev_dispatch *dispatch,
 		    struct evdev_device *device,
 		    struct evdev_event *e,
-		    uint64_t time)
+		    usec_t time)
 {
 	struct totem_dispatch *totem = totem_dispatch(dispatch);
 	enum totem_slot_state global_state;
@@ -549,7 +549,7 @@ static void
 totem_interface_process(struct evdev_dispatch *dispatch,
 			struct evdev_device *device,
 			struct evdev_frame *frame,
-			uint64_t time)
+			usec_t time)
 {
 	size_t nevents;
 	struct evdev_event *events = evdev_frame_get_events(frame, &nevents);
@@ -563,7 +563,7 @@ static void
 totem_interface_suspend(struct evdev_dispatch *dispatch, struct evdev_device *device)
 {
 	struct totem_dispatch *totem = totem_dispatch(dispatch);
-	uint64_t now = libinput_now(evdev_libinput_context(device));
+	usec_t now = libinput_now(evdev_libinput_context(device));
 
 	for (size_t i = 0; i < totem->nslots; i++) {
 		struct totem_slot *slot = &totem->slots[i];
@@ -682,7 +682,7 @@ totem_interface_initial_proximity(struct evdev_device *device,
 				  struct evdev_dispatch *dispatch)
 {
 	struct totem_dispatch *totem = totem_dispatch(dispatch);
-	uint64_t now = libinput_now(evdev_libinput_context(device));
+	usec_t now = libinput_now(evdev_libinput_context(device));
 	bool enable_touch = true;
 
 	for (size_t i = 0; i < totem->nslots; i++) {

src/evdev.c

@@ -48,12 +48,12 @@
 #include "linux/input.h"
 #include "quirks.h"
 
-#if HAVE_LIBWACOM
+#ifdef HAVE_LIBWACOM
 #include <libwacom/libwacom.h>
 #endif
 
 #define DEFAULT_WHEEL_CLICK_ANGLE 15
-#define DEFAULT_BUTTON_SCROLL_TIMEOUT ms2us(200)
+#define DEFAULT_BUTTON_SCROLL_TIMEOUT usec_from_millis(200)
 
 enum evdev_device_udev_tags {
 	EVDEV_UDEV_TAG_NONE = 0,
@@ -167,7 +167,7 @@ evdev_device_switch_get_state(struct evdev_device *device, enum libinput_switch
 
 void
 evdev_pointer_notify_physical_button(struct evdev_device *device,
-				     uint64_t time,
+				     usec_t time,
 				     evdev_usage_t button,
 				     enum libinput_button_state state)
 {
@@ -179,7 +179,7 @@ evdev_pointer_notify_physical_button(struct evdev_device *device,
 
 static void
 evdev_pointer_post_button(struct evdev_device *device,
-			  uint64_t time,
+			  usec_t time,
 			  evdev_usage_t button,
 			  enum libinput_button_state state)
 {
@@ -205,7 +205,7 @@ evdev_pointer_post_button(struct evdev_device *device,
 }
 
 static void
-evdev_button_scroll_timeout(uint64_t time, void *data)
+evdev_button_scroll_timeout(usec_t time, void *data)
 {
 	struct evdev_device *device = data;
 
@@ -213,7 +213,7 @@ evdev_button_scroll_timeout(uint64_t time, void *data)
 }
 
 static void
-evdev_button_scroll_button(struct evdev_device *device, uint64_t time, int is_press)
+evdev_button_scroll_button(struct evdev_device *device, usec_t time, int is_press)
 {
 	/* Where the button lock is enabled, we wrap the buttons into
 	   their own little state machine and filter out the events.
@@ -265,9 +265,10 @@ evdev_button_scroll_button(struct evdev_device *device, uint64_t time, int is_pr
 				flags = TIMER_FLAG_ALLOW_NEGATIVE;
 			}
 
-			libinput_timer_set_flags(&device->scroll.timer,
-						 time + DEFAULT_BUTTON_SCROLL_TIMEOUT,
-						 flags);
+			libinput_timer_set_flags(
+				&device->scroll.timer,
+				usec_add(time, DEFAULT_BUTTON_SCROLL_TIMEOUT),
+				flags);
 		} else {
 			/* For extra mouse buttons numbered 6 or more (0x115+) we assume
 			 * it is dedicated exclusively to scrolling, so we don't apply
@@ -314,7 +315,7 @@ evdev_button_scroll_button(struct evdev_device *device, uint64_t time, int is_pr
 
 void
 evdev_pointer_notify_button(struct evdev_device *device,
-			    uint64_t time,
+			    usec_t time,
 			    evdev_usage_t button,
 			    enum libinput_button_state state)
 {
@@ -394,7 +395,7 @@ evdev_device_transform_y(struct evdev_device *device, double y, uint32_t height)
 
 void
 evdev_notify_axis_legacy_wheel(struct evdev_device *device,
-			       uint64_t time,
+			       usec_t time,
 			       uint32_t axes,
 			       const struct normalized_coords *delta_in,
 			       const struct discrete_coords *discrete_in)
@@ -419,7 +420,7 @@ evdev_notify_axis_legacy_wheel(struct evdev_device *device,
 
 void
 evdev_notify_axis_wheel(struct evdev_device *device,
-			uint64_t time,
+			usec_t time,
 			uint32_t axes,
 			const struct normalized_coords *delta_in,
 			const struct wheel_v120 *v120_in)
@@ -444,7 +445,7 @@ evdev_notify_axis_wheel(struct evdev_device *device,
 
 void
 evdev_notify_axis_finger(struct evdev_device *device,
-			 uint64_t time,
+			 usec_t time,
 			 uint32_t axes,
 			 const struct normalized_coords *delta_in)
 {
@@ -460,7 +461,7 @@ evdev_notify_axis_finger(struct evdev_device *device,
 
 void
 evdev_notify_axis_continous(struct evdev_device *device,
-			    uint64_t time,
+			    usec_t time,
 			    uint32_t axes,
 			    const struct normalized_coords *delta_in)
 {
@@ -1014,7 +1015,7 @@ evdev_note_time_delay(struct evdev_device *device, const struct input_event *ev)
 {
 	struct libinput *libinput = evdev_libinput_context(device);
 	uint32_t tdelta;
-	uint64_t eventtime = input_event_time(ev);
+	usec_t eventtime = input_event_time(ev);
 
 	/* if we have a current libinput_dispatch() snapshot, compare our
 	 * event time with the one from the snapshot. If we have more than
@@ -1022,10 +1023,11 @@ evdev_note_time_delay(struct evdev_device *device, const struct input_event *ev)
 	 * where there is no steady event flow and thus SYN_DROPPED may not
 	 * get hit by the kernel despite us being too slow.
 	 */
-	if (libinput->dispatch_time == 0 || eventtime > libinput->dispatch_time)
+	if (usec_is_zero(libinput->dispatch_time) ||
+	    usec_cmp(eventtime, libinput->dispatch_time) > 0)
 		return;
 
-	tdelta = us2ms(libinput->dispatch_time - eventtime);
+	tdelta = usec_to_millis(usec_delta(libinput->dispatch_time, eventtime));
 	if (tdelta > 20) {
 		evdev_log_bug_client_ratelimit(
 			device,
@@ -1084,15 +1086,7 @@ evdev_device_dispatch(void *data)
 					"event frame overflow, discarding events.\n");
 			}
 			if (ev.type == EV_SYN && ev.code == SYN_REPORT) {
-				/* A SYN_REPORT 1 event is a kernel-inserted
-				 * auto-repeat. Nothing in libinput cares about kernel
-				 * repeats and the inserted frame causes issues with
-				 * timestamp deltas (see e.g. #1145)
-				 */
-				if (ev.value != 1)
-					evdev_device_dispatch_frame(libinput,
-								    device,
-								    frame);
+				evdev_device_dispatch_frame(libinput, device, frame);
 				evdev_frame_reset(frame);
 			}
 		} else if (rc == -ENODEV) {
@@ -2007,6 +2001,11 @@ evdev_configure_device(struct evdev_device *device,
 			}
 		}
 
+		if (libevdev_has_event_code(evdev, EV_SW, SW_KEYPAD_SLIDE)) {
+			device->seat_caps |= EVDEV_DEVICE_SWITCH;
+			device->tags |= EVDEV_TAG_KEYPAD_SLIDE_SWITCH;
+		}
+
 		if (device->seat_caps & EVDEV_DEVICE_SWITCH)
 			evdev_log_info(device, "device is a switch device\n");
 	}
@@ -2316,11 +2315,11 @@ evdev_device_create(struct libinput_seat *seat, struct udev_device *udev_device)
 	device->dpi = DEFAULT_MOUSE_DPI;
 
 	/* at most 5 SYN_DROPPED log-messages per 30s */
-	ratelimit_init(&device->syn_drop_limit, s2us(30), 5);
+	ratelimit_init(&device->syn_drop_limit, usec_from_seconds(30), 5);
 	/* at most 5 "delayed processing" log messages per hour */
-	ratelimit_init(&device->delay_warning_limit, s2us(60 * 60), 5);
+	ratelimit_init(&device->delay_warning_limit, usec_from_hours(1), 5);
 	/* at most 5 log-messages per 5s */
-	ratelimit_init(&device->nonpointer_rel_limit, s2us(5), 5);
+	ratelimit_init(&device->nonpointer_rel_limit, usec_from_seconds(5), 5);
 
 	matrix_init_identity(&device->abs.calibration);
 	matrix_init_identity(&device->abs.usermatrix);
@@ -2678,6 +2677,9 @@ evdev_device_has_switch(struct evdev_device *device, enum libinput_switch sw)
 	case LIBINPUT_SWITCH_TABLET_MODE:
 		code = SW_TABLET_MODE;
 		break;
+	case LIBINPUT_SWITCH_KEYPAD_SLIDE:
+		code = SW_KEYPAD_SLIDE;
+		break;
 	default:
 		return -1;
 	}
@@ -2705,7 +2707,7 @@ evdev_start_scrolling(struct evdev_device *device, enum libinput_pointer_axis ax
 
 void
 evdev_post_scroll(struct evdev_device *device,
-		  uint64_t time,
+		  usec_t time,
 		  enum libinput_pointer_axis_source source,
 		  const struct normalized_coords *delta)
 {
@@ -2779,7 +2781,7 @@ evdev_post_scroll(struct evdev_device *device,
 
 void
 evdev_stop_scroll(struct evdev_device *device,
-		  uint64_t time,
+		  usec_t time,
 		  enum libinput_pointer_axis_source source)
 {
 	const struct normalized_coords zero = { 0.0, 0.0 };

src/evdev.h

@@ -36,6 +36,7 @@
 
 #include "evdev-frame.h"
 #include "filter.h"
+#include "libinput-feature.h"
 #include "libinput-private.h"
 #include "linux/input.h"
 #include "quirks.h"
@@ -79,6 +80,7 @@ enum evdev_device_tags {
 	EVDEV_TAG_TABLET_MODE_SWITCH = bit(8),
 	EVDEV_TAG_TABLET_TOUCHPAD = bit(9),
 	EVDEV_TAG_VIRTUAL = bit(10),
+	EVDEV_TAG_KEYPAD_SLIDE_SWITCH = bit(11),
 };
 
 enum evdev_middlebutton_state {
@@ -217,7 +219,7 @@ struct evdev_device {
 		/* Currently enabled method, button */
 		enum libinput_config_scroll_method method;
 		evdev_usage_t button;
-		uint64_t button_down_time;
+		usec_t button_down_time;
 
 		/* set during device init, used at runtime to delay changes
 		 * until all buttons are up */
@@ -277,7 +279,7 @@ struct evdev_device {
 		enum evdev_middlebutton_state state;
 		struct libinput_timer timer;
 		uint32_t button_mask;
-		uint64_t first_event_time;
+		usec_t first_event_time;
 	} middlebutton;
 };
 
@@ -296,7 +298,7 @@ struct evdev_dispatch_interface {
 	void (*process)(struct evdev_dispatch *dispatch,
 			struct evdev_device *device,
 			struct evdev_frame *frame,
-			uint64_t time);
+			usec_t time);
 
 	/* Device is being suspended */
 	void (*suspend)(struct evdev_dispatch *dispatch, struct evdev_device *device);
@@ -335,7 +337,7 @@ struct evdev_dispatch_interface {
 					 struct evdev_device *device,
 					 enum evdev_arbitration_state which,
 					 const struct phys_rect *rect, /* may be NULL */
-					 uint64_t now);
+					 usec_t now);
 
 	/* Called when touch arbitration is on, updates the area where touch
 	 * arbitration should apply.
@@ -343,7 +345,7 @@ struct evdev_dispatch_interface {
 	void (*touch_arbitration_update_rect)(struct evdev_dispatch *dispatch,
 					      struct evdev_device *device,
 					      const struct phys_rect *rect,
-					      uint64_t now);
+					      usec_t now);
 
 	/* Return the state of the given switch */
 	enum libinput_switch_state (*get_switch_state)(struct evdev_dispatch *dispatch,
@@ -352,6 +354,9 @@ struct evdev_dispatch_interface {
 	void (*left_handed_toggle)(struct evdev_dispatch *dispatch,
 				   struct evdev_device *device,
 				   bool left_handed_enabled);
+
+	void (*disable_feature)(struct evdev_dispatch *dispatch,
+				enum libinput_feature feature);
 };
 
 enum evdev_dispatch_type {
@@ -389,6 +394,14 @@ evdev_libinput_context(const struct evdev_device *device)
 	return device->base.seat->libinput;
 }
 
+static inline void
+evdev_device_disable_feature(struct evdev_device *device, enum libinput_feature feature)
+{
+	if (device->dispatch && device->dispatch->interface &&
+	    device->dispatch->interface->disable_feature)
+		device->dispatch->interface->disable_feature(device->dispatch, feature);
+}
+
 static inline bool
 evdev_device_has_model_quirk(struct evdev_device *device, enum quirk model_quirk)
 {
@@ -540,12 +553,12 @@ evdev_notify_resumed_device(struct evdev_device *device);
 
 void
 evdev_pointer_notify_button(struct evdev_device *device,
-			    uint64_t time,
+			    usec_t time,
 			    evdev_usage_t button,
 			    enum libinput_button_state state);
 void
 evdev_pointer_notify_physical_button(struct evdev_device *device,
-				     uint64_t time,
+				     usec_t time,
 				     evdev_usage_t button,
 				     enum libinput_button_state state);
 
@@ -566,36 +579,36 @@ evdev_update_key_down_count(struct evdev_device *device,
 
 void
 evdev_notify_axis_legacy_wheel(struct evdev_device *device,
-			       uint64_t time,
+			       usec_t time,
 			       uint32_t axes,
 			       const struct normalized_coords *delta_in,
 			       const struct discrete_coords *discrete_in);
 void
 evdev_notify_axis_wheel(struct evdev_device *device,
-			uint64_t time,
+			usec_t time,
 			uint32_t axes,
 			const struct normalized_coords *delta_in,
 			const struct wheel_v120 *v120_in);
 void
 evdev_notify_axis_finger(struct evdev_device *device,
-			 uint64_t time,
+			 usec_t time,
 			 uint32_t axes,
 			 const struct normalized_coords *delta_in);
 void
 evdev_notify_axis_continous(struct evdev_device *device,
-			    uint64_t time,
+			    usec_t time,
 			    uint32_t axes,
 			    const struct normalized_coords *delta_in);
 
 void
 evdev_post_scroll(struct evdev_device *device,
-		  uint64_t time,
+		  usec_t time,
 		  enum libinput_pointer_axis_source source,
 		  const struct normalized_coords *delta);
 
 void
 evdev_stop_scroll(struct evdev_device *device,
-		  uint64_t time,
+		  usec_t time,
 		  enum libinput_pointer_axis_source source);
 
 void
@@ -606,7 +619,7 @@ evdev_device_destroy(struct evdev_device *device);
 
 bool
 evdev_middlebutton_filter_button(struct evdev_device *device,
-				 uint64_t time,
+				 usec_t time,
 				 evdev_usage_t button,
 				 enum libinput_button_state state);
 
@@ -957,7 +970,9 @@ evdev_device_init_abs_range_warnings(struct evdev_device *device)
 	device->abs.warning_range.max.y = y->maximum + 0.05 * height;
 
 	/* One warning every 5 min is enough */
-	ratelimit_init(&device->abs.warning_range.range_warn_limit, s2us(3000), 1);
+	ratelimit_init(&device->abs.warning_range.range_warn_limit,
+		       usec_from_seconds(3000),
+		       1);
 }
 
 static inline void

src/filter-custom.c

@@ -29,11 +29,12 @@
 #include "filter-private.h"
 #include "filter.h"
 
-#define MOTION_TIMEOUT ms2us(1000)
-#define FIRST_MOTION_TIME_INTERVAL ms2us(7) /* random but good enough interval for very first event */
+#define MOTION_TIMEOUT usec_from_millis(1000)
+#define FIRST_MOTION_TIME_INTERVAL usec_from_millis(7) /* random but good enough interval for very first event */
 
 struct custom_accel_function {
-	uint64_t last_time;
+	usec_t last_time;
+	usec_t last_delta_time;
 	double step;
 	size_t npoints;
 	double points[];
@@ -57,7 +58,8 @@ create_custom_accel_function(double step, const double *points, size_t npoints)
 
 	struct custom_accel_function *cf =
 		zalloc(sizeof(*cf) + npoints * sizeof(*points));
-	cf->last_time = 0;
+	cf->last_time = usec_from_uint64_t(0);
+	cf->last_delta_time = FIRST_MOTION_TIME_INTERVAL;
 	cf->step = step;
 	cf->npoints = npoints;
 	memcpy(cf->points, points, sizeof(*points) * npoints);
@@ -77,7 +79,7 @@ custom_accel_function_destroy(struct custom_accel_function *cf)
 static double
 custom_accel_function_calculate_speed(struct custom_accel_function *cf,
 				      const struct device_float_coords *unaccelerated,
-				      uint64_t time)
+				      usec_t time)
 {
 	/* Although most devices have a constant polling rate, and for fast
 	 * movements these distances do represent the actual speed,
@@ -110,13 +112,26 @@ custom_accel_function_calculate_speed(struct custom_accel_function *cf,
 
 	/* calculate speed based on time passed since last event */
 	double distance = hypot(unaccelerated->x, unaccelerated->y);
+	/* delta_time can be zero when:
+	 * - the fallback acceleration function is used for multiple movement types
+	 *   (for example, pointer motion and wheel scrolling simultaneously)
+	 * - two different methods produce the same movement at the same time
+	 *   (for example, button-scrolling and wheel-scrolling)
+	 *
+	 * Reusing the last delta_time is a graceful fallback even if there are
+	 * duplicate events or event-ordering bugs.
+	 */
+	usec_t delta_time = usec_cmp(time, cf->last_time) > 0
+				    ? usec_delta(time, cf->last_time)
+				    : cf->last_delta_time;
 	/* handle first event in a motion */
-	if (time - cf->last_time > MOTION_TIMEOUT)
-		cf->last_time = time - FIRST_MOTION_TIME_INTERVAL;
+	if (usec_cmp(delta_time, MOTION_TIMEOUT) > 0)
+		delta_time = FIRST_MOTION_TIME_INTERVAL;
 
-	double dt = us2ms_f(time - cf->last_time);
-	double speed = distance / dt; /* speed is in device-units per ms */
+	/* speed is in device-units per ms */
+	double speed = distance / us2ms_f(delta_time);
 	cf->last_time = time;
+	cf->last_delta_time = delta_time;
 
 	return speed;
 }
@@ -182,7 +197,7 @@ custom_accel_function_profile(struct custom_accel_function *cf, double speed_in)
 static struct normalized_coords
 custom_accel_function_filter(struct custom_accel_function *cf,
 			     const struct device_float_coords *unaccelerated,
-			     uint64_t time)
+			     usec_t time)
 {
 	double speed = custom_accel_function_calculate_speed(cf, unaccelerated, time);
 
@@ -238,7 +253,7 @@ static struct normalized_coords
 custom_accelerator_filter(enum libinput_config_accel_type accel_type,
 			  struct motion_filter *filter,
 			  const struct device_float_coords *unaccelerated,
-			  uint64_t time)
+			  usec_t time)
 {
 	struct custom_accelerator *f = (struct custom_accelerator *)filter;
 	struct custom_accel_function *cf;
@@ -249,7 +264,7 @@ custom_accelerator_filter(enum libinput_config_accel_type accel_type,
 }
 
 static void
-custom_accelerator_restart(struct motion_filter *filter, void *data, uint64_t time)
+custom_accelerator_restart(struct motion_filter *filter, void *data, usec_t time)
 {
 	/* noop, this function has no effect in the custom interface */
 }
@@ -333,7 +348,7 @@ double
 custom_accel_profile_fallback(struct motion_filter *filter,
 			      void *data,
 			      double speed_in,
-			      uint64_t time)
+			      usec_t time)
 {
 	return custom_accelerator_profile(LIBINPUT_ACCEL_TYPE_FALLBACK,
 					  filter,
@@ -344,7 +359,7 @@ static struct normalized_coords
 custom_accelerator_filter_fallback(struct motion_filter *filter,
 				   const struct device_float_coords *unaccelerated,
 				   void *data,
-				   uint64_t time)
+				   usec_t time)
 {
 	return custom_accelerator_filter(LIBINPUT_ACCEL_TYPE_FALLBACK,
 					 filter,
@@ -356,7 +371,7 @@ double
 custom_accel_profile_motion(struct motion_filter *filter,
 			    void *data,
 			    double speed_in,
-			    uint64_t time)
+			    usec_t time)
 {
 	return custom_accelerator_profile(LIBINPUT_ACCEL_TYPE_MOTION, filter, speed_in);
 }
@@ -365,7 +380,7 @@ static struct normalized_coords
 custom_accelerator_filter_motion(struct motion_filter *filter,
 				 const struct device_float_coords *unaccelerated,
 				 void *data,
-				 uint64_t time)
+				 usec_t time)
 {
 	return custom_accelerator_filter(LIBINPUT_ACCEL_TYPE_MOTION,
 					 filter,
@@ -377,7 +392,7 @@ double
 custom_accel_profile_scroll(struct motion_filter *filter,
 			    void *data,
 			    double speed_in,
-			    uint64_t time)
+			    usec_t time)
 {
 	return custom_accelerator_profile(LIBINPUT_ACCEL_TYPE_SCROLL, filter, speed_in);
 }
@@ -386,7 +401,8 @@ static struct normalized_coords
 custom_accelerator_filter_scroll(struct motion_filter *filter,
 				 const struct device_float_coords *unaccelerated,
 				 void *data,
-				 uint64_t time)
+				 usec_t time,
+				 enum filter_scroll_type type)
 {
 	return custom_accelerator_filter(LIBINPUT_ACCEL_TYPE_SCROLL,
 					 filter,

src/filter-flat.c

@@ -45,7 +45,7 @@ static struct normalized_coords
 accelerator_filter_flat(struct motion_filter *filter,
 			const struct device_float_coords *unaccelerated,
 			void *data,
-			uint64_t time)
+			usec_t time)
 {
 	struct pointer_accelerator_flat *accel_filter =
 		(struct pointer_accelerator_flat *)filter;
@@ -62,10 +62,10 @@ accelerator_filter_flat(struct motion_filter *filter,
 }
 
 static struct normalized_coords
-accelerator_filter_noop_flat(struct motion_filter *filter,
-			     const struct device_float_coords *unaccelerated,
-			     void *data,
-			     uint64_t time)
+accelerator_filter_constant_flat(struct motion_filter *filter,
+				 const struct device_float_coords *unaccelerated,
+				 void *data,
+				 usec_t time)
 {
 	/* We map the unaccelerated flat filter to have the same behavior as
 	 * the "accelerated" flat filter.
@@ -81,6 +81,27 @@ accelerator_filter_noop_flat(struct motion_filter *filter,
 	return accelerator_filter_flat(filter, unaccelerated, data, time);
 }
 
+static struct normalized_coords
+accelerator_filter_scroll_flat(struct motion_filter *filter,
+			       const struct device_float_coords *unaccelerated,
+			       void *data,
+			       usec_t time,
+			       enum filter_scroll_type type)
+{
+	/* Scroll wheels were not historically accelerated and have different
+	 * units than button scrolling. Maintain the status quo and do not
+	 * accelerate wheel events.
+	 */
+	if (type == FILTER_SCROLL_TYPE_WHEEL) {
+		return (struct normalized_coords){
+			.x = unaccelerated->x,
+			.y = unaccelerated->y,
+		};
+	}
+
+	return accelerator_filter_constant_flat(filter, unaccelerated, data, time);
+}
+
 static bool
 accelerator_set_speed_flat(struct motion_filter *filter, double speed_adjustment)
 {
@@ -112,8 +133,8 @@ accelerator_destroy_flat(struct motion_filter *filter)
 static const struct motion_filter_interface accelerator_interface_flat = {
 	.type = LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT,
 	.filter = accelerator_filter_flat,
-	.filter_constant = accelerator_filter_noop_flat,
-	.filter_scroll = accelerator_filter_noop_flat,
+	.filter_constant = accelerator_filter_constant_flat,
+	.filter_scroll = accelerator_filter_scroll_flat,
 	.restart = NULL,
 	.destroy = accelerator_destroy_flat,
 	.set_speed = accelerator_set_speed_flat,

src/filter-low-dpi.c

@@ -38,8 +38,8 @@
  * Default parameters for pointer acceleration profiles.
  */
 
-#define DEFAULT_THRESHOLD v_ms2us(0.4)		/* in units/us */
-#define MINIMUM_THRESHOLD v_ms2us(0.2)		/* in units/us */
+#define DEFAULT_THRESHOLD v_usec_from_millis(0.4)		/* in units/us */
+#define MINIMUM_THRESHOLD v_usec_from_millis(0.2)		/* in units/us */
 #define DEFAULT_ACCELERATION 2.0		/* unitless factor */
 #define DEFAULT_INCLINE 1.1			/* unitless factor */
 
@@ -74,7 +74,7 @@ double
 pointer_accel_profile_linear_low_dpi(struct motion_filter *filter,
 				     void *data,
 				     double speed_in, /* in device units (units/us) */
-				     uint64_t time)
+				     usec_t time)
 {
 	struct pointer_accelerator_low_dpi *accel_filter =
 		(struct pointer_accelerator_low_dpi *)filter;
@@ -107,7 +107,7 @@ static inline double
 calculate_acceleration_factor(struct pointer_accelerator_low_dpi *accel,
 			      const struct device_float_coords *unaccelerated,
 			      void *data,
-			      uint64_t time)
+			      usec_t time)
 {
 	double velocity; /* units/us in device-native dpi*/
 	double accel_factor;
@@ -129,7 +129,7 @@ static struct normalized_coords
 accelerator_filter_low_dpi(struct motion_filter *filter,
 			   const struct device_float_coords *unaccelerated,
 			   void *data,
-			   uint64_t time)
+			   usec_t time)
 {
 	struct pointer_accelerator_low_dpi *accel =
 		(struct pointer_accelerator_low_dpi *)filter;
@@ -145,10 +145,10 @@ accelerator_filter_low_dpi(struct motion_filter *filter,
 }
 
 static struct normalized_coords
-accelerator_filter_noop(struct motion_filter *filter,
-			const struct device_float_coords *unaccelerated,
-			void *data,
-			uint64_t time)
+accelerator_filter_constant(struct motion_filter *filter,
+			    const struct device_float_coords *unaccelerated,
+			    void *data,
+			    usec_t time)
 {
 	const struct normalized_coords normalized = {
 		.x = unaccelerated->x,
@@ -157,8 +157,18 @@ accelerator_filter_noop(struct motion_filter *filter,
 	return normalized;
 }
 
+static struct normalized_coords
+accelerator_filter_scroll(struct motion_filter *filter,
+			  const struct device_float_coords *unaccelerated,
+			  void *data,
+			  usec_t time,
+			  enum filter_scroll_type type)
+{
+	return accelerator_filter_constant(filter, unaccelerated, data, time);
+}
+
 static void
-accelerator_restart(struct motion_filter *filter, void *data, uint64_t time)
+accelerator_restart(struct motion_filter *filter, void *data, usec_t time)
 {
 	struct pointer_accelerator_low_dpi *accel =
 		(struct pointer_accelerator_low_dpi *)filter;
@@ -188,7 +198,8 @@ accelerator_set_speed(struct motion_filter *filter, double speed_adjustment)
 	   don't read more into them other than "they mostly worked ok" */
 
 	/* delay when accel kicks in */
-	accel_filter->threshold = DEFAULT_THRESHOLD - v_ms2us(0.25) * speed_adjustment;
+	accel_filter->threshold =
+		DEFAULT_THRESHOLD - v_usec_from_millis(0.25) * speed_adjustment;
 	if (accel_filter->threshold < MINIMUM_THRESHOLD)
 		accel_filter->threshold = MINIMUM_THRESHOLD;
 
@@ -205,8 +216,8 @@ accelerator_set_speed(struct motion_filter *filter, double speed_adjustment)
 static const struct motion_filter_interface accelerator_interface_low_dpi = {
 	.type = LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE,
 	.filter = accelerator_filter_low_dpi,
-	.filter_constant = accelerator_filter_noop,
-	.filter_scroll = accelerator_filter_noop,
+	.filter_constant = accelerator_filter_constant,
+	.filter_scroll = accelerator_filter_scroll,
 	.restart = accelerator_restart,
 	.destroy = accelerator_destroy,
 	.set_speed = accelerator_set_speed,

src/filter-mouse.c

@@ -38,8 +38,8 @@
  * Default parameters for pointer acceleration profiles.
  */
 
-#define DEFAULT_THRESHOLD v_ms2us(0.4)		/* in 1000dpi units/us */
-#define MINIMUM_THRESHOLD v_ms2us(0.2)		/* in 1000dpi units/us */
+#define DEFAULT_THRESHOLD v_usec_from_millis(0.4)		/* in 1000dpi units/us */
+#define MINIMUM_THRESHOLD v_usec_from_millis(0.2)		/* in 1000dpi units/us */
 #define DEFAULT_ACCELERATION 2.0		/* unitless factor */
 #define DEFAULT_INCLINE 1.1			/* unitless factor */
 
@@ -74,7 +74,7 @@ static inline double
 calculate_acceleration_factor(struct pointer_accelerator *accel,
 			      const struct normalized_coords *unaccelerated,
 			      void *data,
-			      uint64_t time)
+			      usec_t time)
 {
 	double velocity; /* units/us in normalized 1000dpi units*/
 	double accel_factor;
@@ -104,7 +104,7 @@ static struct normalized_coords
 accelerator_filter_linear(struct motion_filter *filter,
 			  const struct device_float_coords *unaccelerated,
 			  void *data,
-			  uint64_t time)
+			  usec_t time)
 {
 	struct pointer_accelerator *accel = (struct pointer_accelerator *)filter;
 
@@ -133,18 +133,39 @@ accelerator_filter_linear(struct motion_filter *filter,
  * motion
  */
 static struct normalized_coords
-accelerator_filter_noop(struct motion_filter *filter,
-			const struct device_float_coords *unaccelerated,
-			void *data,
-			uint64_t time)
+accelerator_filter_constant(struct motion_filter *filter,
+			    const struct device_float_coords *unaccelerated,
+			    void *data,
+			    usec_t time)
 {
 	struct pointer_accelerator *accel = (struct pointer_accelerator *)filter;
 
 	return normalize_for_dpi(unaccelerated, accel->dpi);
 }
 
+static struct normalized_coords
+accelerator_filter_scroll(struct motion_filter *filter,
+			  const struct device_float_coords *unaccelerated,
+			  void *data,
+			  usec_t time,
+			  enum filter_scroll_type type)
+{
+	/* Scroll wheels were not historically accelerated and have different
+	 * units than button scrolling. Maintain the status quo and do not
+	 * accelerate wheel events.
+	 */
+	if (type == FILTER_SCROLL_TYPE_WHEEL) {
+		return (struct normalized_coords){
+			.x = unaccelerated->x,
+			.y = unaccelerated->y,
+		};
+	}
+
+	return accelerator_filter_constant(filter, unaccelerated, data, time);
+}
+
 static void
-accelerator_restart(struct motion_filter *filter, void *data, uint64_t time)
+accelerator_restart(struct motion_filter *filter, void *data, usec_t time)
 {
 	struct pointer_accelerator *accel = (struct pointer_accelerator *)filter;
 
@@ -171,7 +192,8 @@ accelerator_set_speed(struct motion_filter *filter, double speed_adjustment)
 	   don't read more into them other than "they mostly worked ok" */
 
 	/* delay when accel kicks in */
-	accel_filter->threshold = DEFAULT_THRESHOLD - v_ms2us(0.25) * speed_adjustment;
+	accel_filter->threshold =
+		DEFAULT_THRESHOLD - v_usec_from_millis(0.25) * speed_adjustment;
 	if (accel_filter->threshold < MINIMUM_THRESHOLD)
 		accel_filter->threshold = MINIMUM_THRESHOLD;
 
@@ -189,7 +211,7 @@ double
 pointer_accel_profile_linear(struct motion_filter *filter,
 			     void *data,
 			     double speed_in, /* in normalized units */
-			     uint64_t time)
+			     usec_t time)
 {
 	struct pointer_accelerator *accel_filter = (struct pointer_accelerator *)filter;
 	const double max_accel = accel_filter->accel;     /* unitless factor */
@@ -260,8 +282,8 @@ pointer_accel_profile_linear(struct motion_filter *filter,
 static const struct motion_filter_interface accelerator_interface = {
 	.type = LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE,
 	.filter = accelerator_filter_linear,
-	.filter_constant = accelerator_filter_noop,
-	.filter_scroll = accelerator_filter_noop,
+	.filter_constant = accelerator_filter_constant,
+	.filter_scroll = accelerator_filter_scroll,
 	.restart = accelerator_restart,
 	.destroy = accelerator_destroy,
 	.set_speed = accelerator_set_speed,

src/filter-private.h

@@ -34,18 +34,19 @@ struct motion_filter_interface {
 		struct motion_filter *filter,
 		const struct device_float_coords *unaccelerated,
 		void *data,
-		uint64_t time);
+		usec_t time);
 	struct normalized_coords (*filter_constant)(
 		struct motion_filter *filter,
 		const struct device_float_coords *unaccelerated,
 		void *data,
-		uint64_t time);
+		usec_t time);
 	struct normalized_coords (*filter_scroll)(
 		struct motion_filter *filter,
 		const struct device_float_coords *unaccelerated,
 		void *data,
-		uint64_t time);
-	void (*restart)(struct motion_filter *filter, void *data, uint64_t time);
+		usec_t time,
+		enum filter_scroll_type type);
+	void (*restart)(struct motion_filter *filter, void *data, usec_t time);
 	void (*destroy)(struct motion_filter *filter);
 	bool (*set_speed)(struct motion_filter *filter, double speed_adjustment);
 	bool (*set_accel_config)(struct motion_filter *filter,
@@ -59,19 +60,19 @@ struct motion_filter {
 
 struct pointer_tracker {
 	struct device_float_coords delta; /* delta to most recent event */
-	uint64_t time;                    /* us */
+	usec_t time;                      /* us */
 	uint32_t dir;
 };
 
 /* For smoothing timestamps from devices with unreliable timing */
 struct pointer_delta_smoothener {
-	uint64_t threshold;
-	uint64_t value;
+	usec_t threshold;
+	usec_t value;
 };
 
 static inline struct pointer_delta_smoothener *
-pointer_delta_smoothener_create(uint64_t event_delta_smooth_threshold,
-				uint64_t event_delta_smooth_value)
+pointer_delta_smoothener_create(usec_t event_delta_smooth_threshold,
+				usec_t event_delta_smooth_value)
 {
 	struct pointer_delta_smoothener *s = zalloc(sizeof(*s));
 	s->threshold = event_delta_smooth_threshold;
@@ -99,17 +100,17 @@ void
 trackers_free(struct pointer_trackers *trackers);
 
 void
-trackers_reset(struct pointer_trackers *trackers, uint64_t time);
+trackers_reset(struct pointer_trackers *trackers, usec_t time);
 void
 trackers_feed(struct pointer_trackers *trackers,
 	      const struct device_float_coords *delta,
-	      uint64_t time);
+	      usec_t time);
 
 struct pointer_tracker *
 trackers_by_offset(struct pointer_trackers *trackers, unsigned int offset);
 
 double
-trackers_velocity(struct pointer_trackers *trackers, uint64_t time);
+trackers_velocity(struct pointer_trackers *trackers, usec_t time);
 
 double
 calculate_acceleration_simpsons(struct motion_filter *filter,
@@ -117,7 +118,7 @@ calculate_acceleration_simpsons(struct motion_filter *filter,
 				void *data,
 				double velocity,
 				double last_velocity,
-				uint64_t time);
+				usec_t time);
 
 /* Convert speed/velocity from units/us to units/ms */
 static inline double
@@ -134,7 +135,7 @@ v_us2s(double units_per_us)
 
 /* Convert speed/velocity from units/ms to units/us */
 static inline double
-v_ms2us(double units_per_ms)
+v_usec_from_millis(double units_per_ms)
 {
 	return units_per_ms / 1000.0;
 }

src/filter-tablet.c

@@ -96,7 +96,7 @@ static struct normalized_coords
 tablet_accelerator_filter_flat(struct motion_filter *filter,
 			       const struct device_float_coords *units,
 			       void *data,
-			       uint64_t time)
+			       usec_t time)
 {
 	struct tablet_accelerator_flat *accel_filter =
 		(struct tablet_accelerator_flat *)filter;

src/filter-touchpad-flat.c

@@ -47,7 +47,7 @@ static struct normalized_coords
 accelerator_filter_touchpad_flat(struct motion_filter *filter,
 				 const struct device_float_coords *unaccelerated,
 				 void *data,
-				 uint64_t time)
+				 usec_t time)
 {
 	struct touchpad_accelerator_flat *accel =
 		(struct touchpad_accelerator_flat *)filter;
@@ -65,10 +65,11 @@ accelerator_filter_touchpad_flat(struct motion_filter *filter,
 }
 
 static struct normalized_coords
-accelerator_filter_noop_touchpad_flat(struct motion_filter *filter,
-				      const struct device_float_coords *unaccelerated,
-				      void *data,
-				      uint64_t time)
+accelerator_filter_constant_touchpad_flat(
+	struct motion_filter *filter,
+	const struct device_float_coords *unaccelerated,
+	void *data,
+	usec_t time)
 {
 	/* We map the unaccelerated flat filter to have the same behavior as
 	 * the "accelerated" flat filter.
@@ -84,6 +85,30 @@ accelerator_filter_noop_touchpad_flat(struct motion_filter *filter,
 	return accelerator_filter_touchpad_flat(filter, unaccelerated, data, time);
 }
 
+static struct normalized_coords
+accelerator_filter_scroll_touchpad_flat(struct motion_filter *filter,
+					const struct device_float_coords *unaccelerated,
+					void *data,
+					usec_t time,
+					enum filter_scroll_type type)
+{
+	/* Scroll wheels were not historically accelerated and have different
+	 * units than button scrolling. Maintain the status quo and do not
+	 * accelerate wheel events.
+	 */
+	if (type == FILTER_SCROLL_TYPE_WHEEL) {
+		return (struct normalized_coords){
+			.x = unaccelerated->x,
+			.y = unaccelerated->y,
+		};
+	}
+
+	return accelerator_filter_constant_touchpad_flat(filter,
+							 unaccelerated,
+							 data,
+							 time);
+}
+
 static bool
 accelerator_set_speed_touchpad_flat(struct motion_filter *filter,
 				    double speed_adjustment)
@@ -111,8 +136,8 @@ accelerator_destroy_touchpad_flat(struct motion_filter *filter)
 static const struct motion_filter_interface accelerator_interface_touchpad_flat = {
 	.type = LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT,
 	.filter = accelerator_filter_touchpad_flat,
-	.filter_constant = accelerator_filter_noop_touchpad_flat,
-	.filter_scroll = accelerator_filter_noop_touchpad_flat,
+	.filter_constant = accelerator_filter_constant_touchpad_flat,
+	.filter_scroll = accelerator_filter_scroll_touchpad_flat,
 	.restart = NULL,
 	.destroy = accelerator_destroy_touchpad_flat,
 	.set_speed = accelerator_set_speed_touchpad_flat,

src/filter-touchpad-x230.c

@@ -45,13 +45,13 @@
  * Default parameters for pointer acceleration profiles.
  */
 
-#define DEFAULT_THRESHOLD v_ms2us(0.4)		/* in units/us */
-#define MINIMUM_THRESHOLD v_ms2us(0.2)		/* in units/us */
+#define DEFAULT_THRESHOLD v_usec_from_millis(0.4)		/* in units/us */
+#define MINIMUM_THRESHOLD v_usec_from_millis(0.2)		/* in units/us */
 #define DEFAULT_ACCELERATION 2.0		/* unitless factor */
 #define DEFAULT_INCLINE 1.1			/* unitless factor */
 
 /* for the Lenovo x230 custom accel. do not touch */
-#define X230_THRESHOLD v_ms2us(0.4)		/* in units/us */
+#define X230_THRESHOLD v_usec_from_millis(0.4)		/* in units/us */
 #define X230_ACCELERATION 2.0			/* unitless factor */
 #define X230_INCLINE 1.1			/* unitless factor */
 #define X230_MAGIC_SLOWDOWN 0.4			/* unitless */
@@ -88,7 +88,7 @@ static double
 acceleration_profile(struct pointer_accelerator_x230 *accel,
 		     void *data,
 		     double velocity,
-		     uint64_t time)
+		     usec_t time)
 {
 	return accel->profile(&accel->base, data, velocity, time);
 }
@@ -110,7 +110,7 @@ calculate_acceleration(struct pointer_accelerator_x230 *accel,
 		       void *data,
 		       double velocity,
 		       double last_velocity,
-		       uint64_t time)
+		       usec_t time)
 {
 	double factor;
 
@@ -131,7 +131,7 @@ static struct normalized_coords
 accelerator_filter_x230(struct motion_filter *filter,
 			const struct device_float_coords *raw,
 			void *data,
-			uint64_t time)
+			usec_t time)
 {
 	struct pointer_accelerator_x230 *accel =
 		(struct pointer_accelerator_x230 *)filter;
@@ -171,7 +171,7 @@ static struct normalized_coords
 accelerator_filter_constant_x230(struct motion_filter *filter,
 				 const struct device_float_coords *unaccelerated,
 				 void *data,
-				 uint64_t time)
+				 usec_t time)
 {
 	struct pointer_accelerator_x230 *accel =
 		(struct pointer_accelerator_x230 *)filter;
@@ -185,8 +185,29 @@ accelerator_filter_constant_x230(struct motion_filter *filter,
 	return normalized;
 }
 
+static struct normalized_coords
+accelerator_filter_scroll_x230(struct motion_filter *filter,
+			       const struct device_float_coords *unaccelerated,
+			       void *data,
+			       usec_t time,
+			       enum filter_scroll_type type)
+{
+	/* Scroll wheels were not historically accelerated and have different
+	 * units than button scrolling. Maintain the status quo and do not
+	 * accelerate wheel events.
+	 */
+	if (type == FILTER_SCROLL_TYPE_WHEEL) {
+		return (struct normalized_coords){
+			.x = unaccelerated->x,
+			.y = unaccelerated->y,
+		};
+	}
+
+	return accelerator_filter_constant_x230(filter, unaccelerated, data, time);
+}
+
 static void
-accelerator_restart_x230(struct motion_filter *filter, void *data, uint64_t time)
+accelerator_restart_x230(struct motion_filter *filter, void *data, usec_t time)
 {
 	struct pointer_accelerator_x230 *accel =
 		(struct pointer_accelerator_x230 *)filter;
@@ -195,7 +216,7 @@ accelerator_restart_x230(struct motion_filter *filter, void *data, uint64_t time
 
 	for (offset = 1; offset < accel->trackers.ntrackers; offset++) {
 		tracker = trackers_by_offset(&accel->trackers, offset);
-		tracker->time = 0;
+		tracker->time = usec_from_uint64_t(0);
 		tracker->dir = 0;
 		tracker->delta.x = 0;
 		tracker->delta.y = 0;
@@ -228,7 +249,8 @@ accelerator_set_speed_x230(struct motion_filter *filter, double speed_adjustment
 	   don't read more into them other than "they mostly worked ok" */
 
 	/* delay when accel kicks in */
-	accel_filter->threshold = DEFAULT_THRESHOLD - v_ms2us(0.25) * speed_adjustment;
+	accel_filter->threshold =
+		DEFAULT_THRESHOLD - v_usec_from_millis(0.25) * speed_adjustment;
 	if (accel_filter->threshold < MINIMUM_THRESHOLD)
 		accel_filter->threshold = MINIMUM_THRESHOLD;
 
@@ -246,7 +268,7 @@ double
 touchpad_lenovo_x230_accel_profile(struct motion_filter *filter,
 				   void *data,
 				   double speed_in, /* 1000dpi-units/µs */
-				   uint64_t time)
+				   usec_t time)
 {
 	/* Those touchpads presents an actual lower resolution that what is
 	 * advertised. We see some jumps from the cursor due to the big steps
@@ -285,7 +307,7 @@ static const struct motion_filter_interface accelerator_interface_x230 = {
 	.type = LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE,
 	.filter = accelerator_filter_x230,
 	.filter_constant = accelerator_filter_constant_x230,
-	.filter_scroll = accelerator_filter_constant_x230,
+	.filter_scroll = accelerator_filter_scroll_x230,
 	.restart = accelerator_restart_x230,
 	.destroy = accelerator_destroy_x230,
 	.set_speed = accelerator_set_speed_x230,

src/filter-touchpad.c

@@ -72,7 +72,7 @@ static inline double
 calculate_acceleration_factor(struct touchpad_accelerator *accel,
 			      const struct device_float_coords *unaccelerated,
 			      void *data,
-			      uint64_t time)
+			      usec_t time)
 {
 	double velocity; /* units/us in device-native dpi*/
 	double accel_factor;
@@ -94,7 +94,7 @@ static struct normalized_coords
 accelerator_filter_touchpad(struct motion_filter *filter,
 			    const struct device_float_coords *unaccelerated,
 			    void *data,
-			    uint64_t time)
+			    usec_t time)
 {
 	struct touchpad_accelerator *accel = (struct touchpad_accelerator *)filter;
 
@@ -141,7 +141,7 @@ static struct normalized_coords
 touchpad_constant_filter(struct motion_filter *filter,
 			 const struct device_float_coords *unaccelerated,
 			 void *data,
-			 uint64_t time)
+			 usec_t time)
 {
 	struct touchpad_accelerator *accel = (struct touchpad_accelerator *)filter;
 	struct normalized_coords normalized;
@@ -162,8 +162,29 @@ touchpad_constant_filter(struct motion_filter *filter,
 	return normalized;
 }
 
+static struct normalized_coords
+touchpad_scroll_filter(struct motion_filter *filter,
+		       const struct device_float_coords *unaccelerated,
+		       void *data,
+		       usec_t time,
+		       enum filter_scroll_type type)
+{
+	/* Scroll wheels were not historically accelerated and have different
+	 * units than button scrolling. Maintain the status quo and do not
+	 * accelerate wheel events.
+	 */
+	if (type == FILTER_SCROLL_TYPE_WHEEL) {
+		return (struct normalized_coords){
+			.x = unaccelerated->x,
+			.y = unaccelerated->y,
+		};
+	}
+
+	return touchpad_constant_filter(filter, unaccelerated, data, time);
+}
+
 static void
-touchpad_accelerator_restart(struct motion_filter *filter, void *data, uint64_t time)
+touchpad_accelerator_restart(struct motion_filter *filter, void *data, usec_t time)
 {
 	struct touchpad_accelerator *accel = (struct touchpad_accelerator *)filter;
 
@@ -183,7 +204,7 @@ double
 touchpad_accel_profile_linear(struct motion_filter *filter,
 			      void *data,
 			      double speed_in, /* in device units/µs */
-			      uint64_t time)
+			      usec_t time)
 {
 	struct touchpad_accelerator *accel_filter =
 		(struct touchpad_accelerator *)filter;
@@ -272,7 +293,7 @@ static const struct motion_filter_interface accelerator_interface_touchpad = {
 	.type = LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE,
 	.filter = accelerator_filter_touchpad,
 	.filter_constant = touchpad_constant_filter,
-	.filter_scroll = touchpad_constant_filter,
+	.filter_scroll = touchpad_scroll_filter,
 	.restart = touchpad_accelerator_restart,
 	.destroy = touchpad_accelerator_destroy,
 	.set_speed = touchpad_accelerator_set_speed,
@@ -280,8 +301,8 @@ static const struct motion_filter_interface accelerator_interface_touchpad = {
 
 struct motion_filter *
 create_pointer_accelerator_filter_touchpad(int dpi,
-					   uint64_t event_delta_smooth_threshold,
-					   uint64_t event_delta_smooth_value,
+					   usec_t event_delta_smooth_threshold,
+					   usec_t event_delta_smooth_value,
 					   bool use_velocity_averaging)
 {
 	struct touchpad_accelerator *filter;

src/filter-trackpoint-flat.c

@@ -45,7 +45,7 @@ static struct normalized_coords
 trackpoint_flat_filter(struct motion_filter *filter,
 		       const struct device_float_coords *unaccelerated,
 		       void *data,
-		       uint64_t time)
+		       usec_t time)
 {
 	struct trackpoint_flat_accelerator *accel_filter =
 		(struct trackpoint_flat_accelerator *)filter;
@@ -60,10 +60,10 @@ trackpoint_flat_filter(struct motion_filter *filter,
 }
 
 static struct normalized_coords
-trackpoint_flat_filter_noop(struct motion_filter *filter,
-			    const struct device_float_coords *unaccelerated,
-			    void *data,
-			    uint64_t time)
+trackpoint_flat_filter_constant(struct motion_filter *filter,
+				const struct device_float_coords *unaccelerated,
+				void *data,
+				usec_t time)
 {
 	/* We map the unaccelerated flat filter to have the same behavior as
 	 * the "accelerated" flat filter.
@@ -79,6 +79,27 @@ trackpoint_flat_filter_noop(struct motion_filter *filter,
 	return trackpoint_flat_filter(filter, unaccelerated, data, time);
 }
 
+static struct normalized_coords
+trackpoint_flat_filter_scroll(struct motion_filter *filter,
+			      const struct device_float_coords *unaccelerated,
+			      void *data,
+			      usec_t time,
+			      enum filter_scroll_type type)
+{
+	/* Scroll wheels were not historically accelerated and have different
+	 * units than button scrolling. Maintain the status quo and do not
+	 * accelerate wheel events.
+	 */
+	if (type == FILTER_SCROLL_TYPE_WHEEL) {
+		return (struct normalized_coords){
+			.x = unaccelerated->x,
+			.y = unaccelerated->y,
+		};
+	}
+
+	return trackpoint_flat_filter_constant(filter, unaccelerated, data, time);
+}
+
 /* Maps the [-1, 1] speed setting into a constant acceleration
  * range. This isn't a linear scale, we keep 0 as the 'optimized'
  * mid-point and scale down to 0 for setting -1 and up to 5 for
@@ -128,8 +149,8 @@ trackpoint_flat_destroy(struct motion_filter *filter)
 static struct motion_filter_interface accelerator_interface_flat = {
 	.type = LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT,
 	.filter = trackpoint_flat_filter,
-	.filter_constant = trackpoint_flat_filter_noop,
-	.filter_scroll = trackpoint_flat_filter_noop,
+	.filter_constant = trackpoint_flat_filter_constant,
+	.filter_scroll = trackpoint_flat_filter_scroll,
 	.restart = NULL,
 	.destroy = trackpoint_flat_destroy,
 	.set_speed = trackpoint_flat_set_speed,

src/filter-trackpoint.c

@@ -48,7 +48,7 @@ double
 trackpoint_accel_profile(struct motion_filter *filter,
 			 void *data,
 			 double velocity,
-			 uint64_t time)
+			 usec_t time)
 {
 	struct trackpoint_accelerator *accel_filter =
 		(struct trackpoint_accelerator *)filter;
@@ -74,7 +74,7 @@ static struct normalized_coords
 trackpoint_accelerator_filter(struct motion_filter *filter,
 			      const struct device_float_coords *unaccelerated,
 			      void *data,
-			      uint64_t time)
+			      usec_t time)
 {
 	struct trackpoint_accelerator *accel_filter =
 		(struct trackpoint_accelerator *)filter;
@@ -97,10 +97,10 @@ trackpoint_accelerator_filter(struct motion_filter *filter,
 }
 
 static struct normalized_coords
-trackpoint_accelerator_filter_noop(struct motion_filter *filter,
-				   const struct device_float_coords *unaccelerated,
-				   void *data,
-				   uint64_t time)
+trackpoint_accelerator_filter_constant(struct motion_filter *filter,
+				       const struct device_float_coords *unaccelerated,
+				       void *data,
+				       usec_t time)
 {
 	struct trackpoint_accelerator *accel_filter =
 		(struct trackpoint_accelerator *)filter;
@@ -112,6 +112,30 @@ trackpoint_accelerator_filter_noop(struct motion_filter *filter,
 	return coords;
 }
 
+static struct normalized_coords
+trackpoint_accelerator_filter_scroll(struct motion_filter *filter,
+				     const struct device_float_coords *unaccelerated,
+				     void *data,
+				     usec_t time,
+				     enum filter_scroll_type type)
+{
+	/* Scroll wheels were not historically accelerated and have different
+	 * units than button scrolling. Maintain the status quo and do not
+	 * accelerate wheel events.
+	 */
+	if (type == FILTER_SCROLL_TYPE_WHEEL) {
+		return (struct normalized_coords){
+			.x = unaccelerated->x,
+			.y = unaccelerated->y,
+		};
+	}
+
+	return trackpoint_accelerator_filter_constant(filter,
+						      unaccelerated,
+						      data,
+						      time);
+}
+
 /* Maps the [-1, 1] speed setting into a constant acceleration
  * range. This isn't a linear scale, we keep 0 as the 'optimized'
  * mid-point and scale down to 0 for setting -1 and up to 5 for
@@ -150,7 +174,7 @@ trackpoint_accelerator_set_speed(struct motion_filter *filter, double speed_adju
 }
 
 static void
-trackpoint_accelerator_restart(struct motion_filter *filter, void *data, uint64_t time)
+trackpoint_accelerator_restart(struct motion_filter *filter, void *data, usec_t time)
 {
 	struct trackpoint_accelerator *accel = (struct trackpoint_accelerator *)filter;
 
@@ -170,8 +194,8 @@ trackpoint_accelerator_destroy(struct motion_filter *filter)
 static const struct motion_filter_interface accelerator_interface_trackpoint = {
 	.type = LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE,
 	.filter = trackpoint_accelerator_filter,
-	.filter_constant = trackpoint_accelerator_filter_noop,
-	.filter_scroll = trackpoint_accelerator_filter_noop,
+	.filter_constant = trackpoint_accelerator_filter_constant,
+	.filter_scroll = trackpoint_accelerator_filter_scroll,
 	.restart = trackpoint_accelerator_restart,
 	.destroy = trackpoint_accelerator_destroy,
 	.set_speed = trackpoint_accelerator_set_speed,
@@ -207,7 +231,8 @@ create_pointer_accelerator_filter_trackpoint(double multiplier,
 
 	filter->base.interface = &accelerator_interface_trackpoint;
 	filter->trackers.smoothener =
-		pointer_delta_smoothener_create(ms2us(10), ms2us(10));
+		pointer_delta_smoothener_create(usec_from_millis(10),
+						usec_from_millis(10));
 
 	return &filter->base;
 }

src/filter.c

@@ -35,13 +35,13 @@
 #include "filter.h"
 #include "libinput-util.h"
 
-#define MOTION_TIMEOUT		ms2us(1000)
+#define MOTION_TIMEOUT		usec_from_millis(1000)
 
 struct normalized_coords
 filter_dispatch(struct motion_filter *filter,
 		const struct device_float_coords *unaccelerated,
 		void *data,
-		uint64_t time)
+		usec_t time)
 {
 	return filter->interface->filter(filter, unaccelerated, data, time);
 }
@@ -50,7 +50,7 @@ struct normalized_coords
 filter_dispatch_constant(struct motion_filter *filter,
 			 const struct device_float_coords *unaccelerated,
 			 void *data,
-			 uint64_t time)
+			 usec_t time)
 {
 	return filter->interface->filter_constant(filter, unaccelerated, data, time);
 }
@@ -59,13 +59,18 @@ struct normalized_coords
 filter_dispatch_scroll(struct motion_filter *filter,
 		       const struct device_float_coords *unaccelerated,
 		       void *data,
-		       uint64_t time)
+		       usec_t time,
+		       enum filter_scroll_type type)
 {
-	return filter->interface->filter_scroll(filter, unaccelerated, data, time);
+	return filter->interface->filter_scroll(filter,
+						unaccelerated,
+						data,
+						time,
+						type);
 }
 
 void
-filter_restart(struct motion_filter *filter, void *data, uint64_t time)
+filter_restart(struct motion_filter *filter, void *data, usec_t time)
 {
 	if (filter->interface->restart)
 		filter->interface->restart(filter, data, time);
@@ -127,14 +132,14 @@ trackers_free(struct pointer_trackers *trackers)
 }
 
 void
-trackers_reset(struct pointer_trackers *trackers, uint64_t time)
+trackers_reset(struct pointer_trackers *trackers, usec_t time)
 {
 	unsigned int offset;
 	struct pointer_tracker *tracker;
 
 	for (offset = 1; offset < trackers->ntrackers; offset++) {
 		tracker = trackers_by_offset(trackers, offset);
-		tracker->time = 0;
+		tracker->time = usec_from_uint64_t(0);
 		tracker->dir = 0;
 		tracker->delta.x = 0;
 		tracker->delta.y = 0;
@@ -148,7 +153,7 @@ trackers_reset(struct pointer_trackers *trackers, uint64_t time)
 void
 trackers_feed(struct pointer_trackers *trackers,
 	      const struct device_float_coords *delta,
-	      uint64_t time)
+	      usec_t time)
 {
 	unsigned int i, current;
 	struct pointer_tracker *ts = trackers->trackers;
@@ -179,16 +184,17 @@ trackers_by_offset(struct pointer_trackers *trackers, unsigned int offset)
 
 static double
 calculate_trackers_velocity(const struct pointer_tracker *tracker,
-			    uint64_t time,
+			    usec_t time,
 			    struct pointer_delta_smoothener *smoothener)
 {
-	uint64_t tdelta = time - tracker->time + 1;
+	usec_t tdelta = usec_delta(time, tracker->time);
+	tdelta = usec_add(tdelta, usec_from_uint64_t(1));
 
-	if (smoothener && tdelta < smoothener->threshold)
+	if (smoothener && usec_cmp(tdelta, smoothener->threshold) < 0)
 		tdelta = smoothener->value;
 
 	return hypot(tracker->delta.x, tracker->delta.y) /
-	       (double)tdelta; /* units/us */
+	       (double)usec_as_uint64_t(tdelta); /* units/us */
 }
 
 static double
@@ -207,7 +213,7 @@ trackers_velocity_after_timeout(const struct pointer_tracker *tracker,
 	 * movement in normal use-cases (pause, move, pause, move)
 	 */
 	return calculate_trackers_velocity(tracker,
-					   tracker->time + MOTION_TIMEOUT,
+					   usec_add(tracker->time, MOTION_TIMEOUT),
 					   smoothener);
 }
 
@@ -219,9 +225,9 @@ trackers_velocity_after_timeout(const struct pointer_tracker *tracker,
  * change between events.
  */
 double
-trackers_velocity(struct pointer_trackers *trackers, uint64_t time)
+trackers_velocity(struct pointer_trackers *trackers, usec_t time)
 {
-	const double MAX_VELOCITY_DIFF = v_ms2us(1); /* units/us */
+	const double MAX_VELOCITY_DIFF = v_usec_from_millis(1); /* units/us */
 	double result = 0.0;
 	double initial_velocity = 0.0;
 
@@ -234,11 +240,12 @@ trackers_velocity(struct pointer_trackers *trackers, uint64_t time)
 			trackers_by_offset(trackers, offset);
 
 		/* Bug: time running backwards */
-		if (tracker->time > time)
+		if (usec_cmp(tracker->time, time) > 0)
 			break;
 
 		/* Stop if too far away in time */
-		if (time - tracker->time > MOTION_TIMEOUT) {
+		usec_t tdelta = usec_delta(time, tracker->time);
+		if (usec_cmp(tdelta, MOTION_TIMEOUT) > 0) {
 			if (offset == 1)
 				result = trackers_velocity_after_timeout(
 					tracker,
@@ -297,7 +304,7 @@ calculate_acceleration_simpsons(struct motion_filter *filter,
 				void *data,
 				double velocity,
 				double last_velocity,
-				uint64_t time)
+				usec_t time)
 {
 	double factor;
 

src/filter.h

@@ -34,6 +34,12 @@
 
 struct motion_filter;
 
+enum filter_scroll_type {
+	FILTER_SCROLL_TYPE_CONTINUOUS,
+	FILTER_SCROLL_TYPE_WHEEL,
+	FILTER_SCROLL_TYPE_FINGER,
+};
+
 /**
  * Accelerate the given coordinates.
  * Takes a set of unaccelerated deltas and accelerates them based on the
@@ -60,7 +66,7 @@ struct normalized_coords
 filter_dispatch(struct motion_filter *filter,
 		const struct device_float_coords *unaccelerated,
 		void *data,
-		uint64_t time);
+		usec_t time);
 
 /**
  * Apply constant motion filters, but no acceleration.
@@ -82,7 +88,7 @@ struct normalized_coords
 filter_dispatch_constant(struct motion_filter *filter,
 			 const struct device_float_coords *unaccelerated,
 			 void *data,
-			 uint64_t time);
+			 usec_t time);
 
 /**
  * Apply a scroll filter.
@@ -98,6 +104,7 @@ filter_dispatch_constant(struct motion_filter *filter,
  * originally provided resolution.
  * @param data Custom data
  * @param time The time of the delta
+ * @param type The type of scroll event
  *
  * @see filter_dispatch
  */
@@ -105,10 +112,11 @@ struct normalized_coords
 filter_dispatch_scroll(struct motion_filter *filter,
 		       const struct device_float_coords *unaccelerated,
 		       void *data,
-		       uint64_t time);
+		       usec_t time,
+		       enum filter_scroll_type type);
 
 void
-filter_restart(struct motion_filter *filter, void *data, uint64_t time);
+filter_restart(struct motion_filter *filter, void *data, usec_t time);
 
 void
 filter_destroy(struct motion_filter *filter);
@@ -124,7 +132,7 @@ filter_get_type(struct motion_filter *filter);
 typedef double (*accel_profile_func_t)(struct motion_filter *filter,
 				       void *data,
 				       double velocity,
-				       uint64_t time);
+				       usec_t time);
 
 bool
 filter_set_accel_config(struct motion_filter *filter,
@@ -142,8 +150,8 @@ create_pointer_accelerator_filter_linear_low_dpi(int dpi, bool use_velocity_aver
 
 struct motion_filter *
 create_pointer_accelerator_filter_touchpad(int dpi,
-					   uint64_t event_delta_smooth_threshold,
-					   uint64_t event_delta_smooth_value,
+					   usec_t event_delta_smooth_threshold,
+					   usec_t event_delta_smooth_value,
 					   bool use_velocity_averaging);
 
 struct motion_filter *
@@ -173,40 +181,40 @@ double
 pointer_accel_profile_linear_low_dpi(struct motion_filter *filter,
 				     void *data,
 				     double speed_in,
-				     uint64_t time);
+				     usec_t time);
 double
 pointer_accel_profile_linear(struct motion_filter *filter,
 			     void *data,
 			     double speed_in,
-			     uint64_t time);
+			     usec_t time);
 double
 touchpad_accel_profile_linear(struct motion_filter *filter,
 			      void *data,
 			      double speed_in,
-			      uint64_t time);
+			      usec_t time);
 double
 touchpad_lenovo_x230_accel_profile(struct motion_filter *filter,
 				   void *data,
 				   double speed_in,
-				   uint64_t time);
+				   usec_t time);
 double
 trackpoint_accel_profile(struct motion_filter *filter,
 			 void *data,
 			 double velocity,
-			 uint64_t time);
+			 usec_t time);
 double
 custom_accel_profile_fallback(struct motion_filter *filter,
 			      void *data,
 			      double speed_in,
-			      uint64_t time);
+			      usec_t time);
 double
 custom_accel_profile_motion(struct motion_filter *filter,
 			    void *data,
 			    double speed_in,
-			    uint64_t time);
+			    usec_t time);
 double
 custom_accel_profile_scroll(struct motion_filter *filter,
 			    void *data,
 			    double speed_in,
-			    uint64_t time);
+			    usec_t time);
 #endif /* FILTER_H */

src/libinput-feature.h

@@ -0,0 +1,34 @@
+/*
+ * Copyright © 2025 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+
+enum libinput_feature {
+	LIBINPUT_FEATURE_BUTTON_DEBOUNCING = 1,
+	LIBINPUT_FEATURE_WHEEL_DEBOUNCING,
+	LIBINPUT_FEATURE_TOUCHPAD_JUMP_DETECTION,
+	LIBINPUT_FEATURE_TOUCHPAD_HYSTERESIS,
+	LIBINPUT_FEATURE_TOUCHPAD_PALM_DETECTION,
+
+	_LIBINPUT_N_FEATURES
+};

src/libinput-plugin-button-debounce.c

@@ -30,9 +30,11 @@
 #include "util-strings.h"
 
 #include "evdev-frame.h"
+#include "libinput-feature.h"
 #include "libinput-log.h"
 #include "libinput-plugin-button-debounce.h"
 #include "libinput-plugin.h"
+#include "libinput-private.h"
 #include "libinput-util.h"
 #include "quirks.h"
 #include "timer.h"
@@ -134,10 +136,12 @@ struct plugin_device {
 	struct plugin_data *parent;
 
 	evdev_usage_t button_usage;
-	uint64_t button_time;
+	usec_t button_time;
 	enum debounce_state state;
 	bool spurious_enabled;
 
+	bool want_feature_disabled;
+
 	struct libinput_plugin_timer *timer;
 	struct libinput_plugin_timer *timer_short;
 };
@@ -175,7 +179,6 @@ plugin_data_destroy(void *d)
 	free(data);
 }
 
-DEFINE_DESTROY_CLEANUP_FUNC(plugin_data);
 static void
 plugin_destroy(struct libinput_plugin *libinput_plugin)
 {
@@ -192,6 +195,23 @@ log_debounce_bug(struct plugin_device *device, enum debounce_event event)
 				debounce_state_to_str(device->state));
 }
 
+static inline void
+debounce_maybe_disable(struct plugin_device *device)
+{
+	if (device->state != DEBOUNCE_STATE_IS_UP)
+		return;
+
+	if (device->want_feature_disabled) {
+		plugin_log_debug(device->parent->plugin,
+				 "%s: disabled button debouncing on request\n",
+				 libinput_device_get_name(device->device));
+		device->state = DEBOUNCE_STATE_DISABLED;
+		libinput_plugin_enable_device_event_frame(device->parent->plugin,
+							  device->device,
+							  false);
+	}
+}
+
 static inline void
 debounce_set_state(struct plugin_device *device, enum debounce_state new_state)
 {
@@ -202,20 +222,21 @@ debounce_set_state(struct plugin_device *device, enum debounce_state new_state)
 }
 
 static inline void
-debounce_set_timer(struct plugin_device *device, uint64_t time)
+debounce_set_timer(struct plugin_device *device, usec_t time)
 {
-	const int DEBOUNCE_TIMEOUT_BOUNCE = ms2us(25);
+	const usec_t DEBOUNCE_TIMEOUT_BOUNCE = usec_from_millis(25);
 
-	libinput_plugin_timer_set(device->timer, time + DEBOUNCE_TIMEOUT_BOUNCE);
+	libinput_plugin_timer_set(device->timer,
+				  usec_add(time, DEBOUNCE_TIMEOUT_BOUNCE));
 }
 
 static inline void
-debounce_set_timer_short(struct plugin_device *device, uint64_t time)
+debounce_set_timer_short(struct plugin_device *device, usec_t time)
 {
-	const int DEBOUNCE_TIMEOUT_SPURIOUS = ms2us(12);
+	const usec_t DEBOUNCE_TIMEOUT_SPURIOUS = usec_from_millis(12);
 
 	libinput_plugin_timer_set(device->timer_short,
-				  time + DEBOUNCE_TIMEOUT_SPURIOUS);
+				  usec_add(time, DEBOUNCE_TIMEOUT_SPURIOUS));
 }
 
 static inline void
@@ -264,13 +285,18 @@ debounce_notify_button(struct plugin_device *device,
 	libinput_plugin_prepend_evdev_frame(device->parent->plugin,
 					    device->device,
 					    frame);
+
+	/* If we used the original frame, reset it to avoid re-sending any
+	 * non-button events that may be present in this frame */
+	if (button_frame == NULL)
+		evdev_frame_reset(frame);
 }
 
 static void
 debounce_is_up_handle_event(struct plugin_device *device,
 			    enum debounce_event event,
 			    struct evdev_frame *frame,
-			    uint64_t time)
+			    usec_t time)
 {
 	switch (event) {
 	case DEBOUNCE_EVENT_PRESS:
@@ -293,7 +319,7 @@ static void
 debounce_is_down_handle_event(struct plugin_device *device,
 			      enum debounce_event event,
 			      struct evdev_frame *frame,
-			      uint64_t time)
+			      usec_t time)
 {
 	switch (event) {
 	case DEBOUNCE_EVENT_PRESS:
@@ -329,7 +355,7 @@ static void
 debounce_is_down_waiting_handle_event(struct plugin_device *device,
 				      enum debounce_event event,
 				      struct evdev_frame *frame,
-				      uint64_t time)
+				      usec_t time)
 {
 	switch (event) {
 	case DEBOUNCE_EVENT_PRESS:
@@ -358,7 +384,7 @@ static void
 debounce_is_up_delaying_handle_event(struct plugin_device *device,
 				     enum debounce_event event,
 				     struct evdev_frame *frame,
-				     uint64_t time)
+				     usec_t time)
 {
 	switch (event) {
 	case DEBOUNCE_EVENT_PRESS:
@@ -372,6 +398,7 @@ debounce_is_up_delaying_handle_event(struct plugin_device *device,
 	case DEBOUNCE_EVENT_TIMEOUT:
 	case DEBOUNCE_EVENT_OTHERBUTTON:
 		debounce_set_state(device, DEBOUNCE_STATE_IS_UP);
+		debounce_maybe_disable(device);
 		debounce_notify_button(device, frame, LIBINPUT_BUTTON_STATE_RELEASED);
 		break;
 	}
@@ -381,7 +408,7 @@ static void
 debounce_is_up_delaying_spurious_handle_event(struct plugin_device *device,
 					      enum debounce_event event,
 					      struct evdev_frame *frame,
-					      uint64_t time)
+					      usec_t time)
 {
 	switch (event) {
 	case DEBOUNCE_EVENT_PRESS:
@@ -399,6 +426,7 @@ debounce_is_up_delaying_spurious_handle_event(struct plugin_device *device,
 		break;
 	case DEBOUNCE_EVENT_OTHERBUTTON:
 		debounce_set_state(device, DEBOUNCE_STATE_IS_UP);
+		debounce_maybe_disable(device);
 		debounce_notify_button(device, frame, LIBINPUT_BUTTON_STATE_RELEASED);
 		break;
 	}
@@ -408,7 +436,7 @@ static void
 debounce_is_up_detecting_spurious_handle_event(struct plugin_device *device,
 					       enum debounce_event event,
 					       struct evdev_frame *frame,
-					       uint64_t time)
+					       usec_t time)
 {
 	switch (event) {
 	case DEBOUNCE_EVENT_PRESS:
@@ -424,12 +452,14 @@ debounce_is_up_detecting_spurious_handle_event(struct plugin_device *device,
 		break;
 	case DEBOUNCE_EVENT_TIMEOUT:
 		debounce_set_state(device, DEBOUNCE_STATE_IS_UP);
+		debounce_maybe_disable(device);
 		break;
 	case DEBOUNCE_EVENT_TIMEOUT_SHORT:
 		debounce_set_state(device, DEBOUNCE_STATE_IS_UP_WAITING);
 		break;
 	case DEBOUNCE_EVENT_OTHERBUTTON:
 		debounce_set_state(device, DEBOUNCE_STATE_IS_UP);
+		debounce_maybe_disable(device);
 		break;
 	}
 }
@@ -438,7 +468,7 @@ static void
 debounce_is_down_detecting_spurious_handle_event(struct plugin_device *device,
 						 enum debounce_event event,
 						 struct evdev_frame *frame,
-						 uint64_t time)
+						 usec_t time)
 {
 	switch (event) {
 	case DEBOUNCE_EVENT_PRESS:
@@ -467,7 +497,7 @@ static void
 debounce_is_up_waiting_handle_event(struct plugin_device *device,
 				    enum debounce_event event,
 				    struct evdev_frame *frame,
-				    uint64_t time)
+				    usec_t time)
 {
 	switch (event) {
 	case DEBOUNCE_EVENT_PRESS:
@@ -484,6 +514,7 @@ debounce_is_up_waiting_handle_event(struct plugin_device *device,
 	case DEBOUNCE_EVENT_TIMEOUT:
 	case DEBOUNCE_EVENT_OTHERBUTTON:
 		debounce_set_state(device, DEBOUNCE_STATE_IS_UP);
+		debounce_maybe_disable(device);
 		break;
 	}
 }
@@ -492,7 +523,7 @@ static void
 debounce_is_down_delaying_handle_event(struct plugin_device *device,
 				       enum debounce_event event,
 				       struct evdev_frame *frame,
-				       uint64_t time)
+				       usec_t time)
 {
 	switch (event) {
 	case DEBOUNCE_EVENT_PRESS:
@@ -517,7 +548,7 @@ static void
 debounce_disabled_handle_event(struct plugin_device *device,
 			       enum debounce_event event,
 			       struct evdev_frame *frame,
-			       uint64_t time)
+			       usec_t time)
 {
 	switch (event) {
 	case DEBOUNCE_EVENT_PRESS:
@@ -541,7 +572,7 @@ static void
 debounce_handle_event(struct plugin_device *device,
 		      enum debounce_event event,
 		      struct evdev_frame *frame,
-		      uint64_t time)
+		      usec_t time)
 {
 	enum debounce_state current = device->state;
 
@@ -602,7 +633,7 @@ debounce_handle_event(struct plugin_device *device,
 static void
 debounce_plugin_handle_frame(struct plugin_device *device,
 			     struct evdev_frame *frame,
-			     uint64_t time)
+			     usec_t time)
 {
 	size_t nchanged = 0;
 	bool flushed = false;
@@ -661,6 +692,7 @@ debounce_plugin_handle_frame(struct plugin_device *device,
 					   !is_down ? DEBOUNCE_STATE_IS_DOWN
 						    : DEBOUNCE_STATE_IS_UP);
 			flushed = false;
+			debounce_maybe_disable(device);
 		}
 
 		device->button_usage = e->usage;
@@ -703,7 +735,7 @@ debounce_plugin_evdev_frame(struct libinput_plugin *libinput_plugin,
 }
 
 static void
-debounce_timeout(struct libinput_plugin *plugin, uint64_t now, void *data)
+debounce_timeout(struct libinput_plugin *plugin, usec_t now, void *data)
 {
 	struct plugin_device *device = data;
 
@@ -711,7 +743,7 @@ debounce_timeout(struct libinput_plugin *plugin, uint64_t now, void *data)
 }
 
 static void
-debounce_timeout_short(struct libinput_plugin *plugin, uint64_t now, void *data)
+debounce_timeout_short(struct libinput_plugin *plugin, usec_t now, void *data)
 {
 	struct plugin_device *device = data;
 
@@ -725,6 +757,9 @@ debounce_plugin_device_added(struct libinput_plugin *libinput_plugin,
 	if (!libinput_device_has_capability(device, LIBINPUT_DEVICE_CAP_POINTER))
 		return;
 
+	if (libinput_device_is_virtual(device))
+		return;
+
 	_unref_(udev_device) *udev_device = libinput_device_get_udev_device(device);
 	if (udev_device) {
 		const char *prop = udev_device_get_property_value(udev_device,
@@ -743,6 +778,15 @@ debounce_plugin_device_added(struct libinput_plugin *libinput_plugin,
 
 	libinput_plugin_enable_device_event_frame(libinput_plugin, device, true);
 
+	/* We don't care about BTN_TRIGGER_HAPPY_* */
+	for (unsigned int code = BTN_0; code <= KEY_OK; code++) {
+		evdev_usage_t usage = evdev_usage_from_code(EV_KEY, code);
+		if (evdev_usage_is_button(usage)) {
+			libinput_plugin_enable_evdev_usage(libinput_plugin,
+							   evdev_usage_enum(usage));
+		}
+	}
+
 	struct plugin_data *plugin = libinput_plugin_get_user_data(libinput_plugin);
 	struct plugin_device *pd = zalloc(sizeof(*pd));
 	pd->device = libinput_device_ref(device);
@@ -779,6 +823,24 @@ debounce_plugin_device_removed(struct libinput_plugin *libinput_plugin,
 	}
 }
 
+static void
+debounce_plugin_feature_disabled(struct libinput_plugin *libinput_plugin,
+				 struct libinput_device *device,
+				 enum libinput_feature feature)
+{
+	if (feature != LIBINPUT_FEATURE_BUTTON_DEBOUNCING)
+		return;
+
+	struct plugin_data *plugin = libinput_plugin_get_user_data(libinput_plugin);
+	struct plugin_device *pd;
+	list_for_each(pd, &plugin->devices, link) {
+		if (pd->device == device) {
+			pd->want_feature_disabled = true;
+			return;
+		}
+	}
+}
+
 static const struct libinput_plugin_interface interface = {
 	.run = NULL,
 	.destroy = plugin_destroy,
@@ -787,6 +849,7 @@ static const struct libinput_plugin_interface interface = {
 	.device_added = debounce_plugin_device_added,
 	.device_removed = debounce_plugin_device_removed,
 	.evdev_frame = debounce_plugin_evdev_frame,
+	.feature_disabled = debounce_plugin_feature_disabled,
 };
 
 void

src/libinput-plugin-lua.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright © 2025 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+
+#include "config.h"
+
+#include "libinput-plugin.h"
+#include "libinput.h"
+
+struct libinput_plugin *
+libinput_lua_plugin_new_from_path(struct libinput *libinput, const char *path);

src/libinput-plugin-mouse-wheel-lowres.c

@@ -0,0 +1,123 @@
+/*
+ * Copyright © 2025 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "config.h"
+
+#include <libevdev/libevdev.h>
+
+#include "evdev.h"
+#include "libinput-plugin-mouse-wheel-lowres.h"
+#include "libinput-plugin.h"
+#include "src/evdev-frame.h"
+
+static void
+wheel_plugin_device_new(struct libinput_plugin *libinput_plugin,
+			struct libinput_device *device,
+			struct libevdev *libevdev,
+			struct udev_device *udev_device)
+{
+	struct evdev_device *evdev = evdev_device(device);
+
+	if (libevdev_has_event_code(libevdev, EV_REL, REL_WHEEL_HI_RES) ||
+	    libevdev_has_event_code(libevdev, EV_REL, REL_HWHEEL_HI_RES))
+		return;
+
+	if (libevdev_has_event_code(libevdev, EV_REL, REL_WHEEL) ||
+	    libevdev_has_event_code(libevdev, EV_REL, REL_HWHEEL))
+		evdev_log_info(evdev,
+			       "emulating high-resolution scroll wheel events.\n");
+
+	if (libevdev_has_event_code(libevdev, EV_REL, REL_WHEEL))
+		libevdev_enable_event_code(libevdev, EV_REL, REL_WHEEL_HI_RES, NULL);
+
+	if (libevdev_has_event_code(libevdev, EV_REL, REL_HWHEEL))
+		libevdev_enable_event_code(libevdev, EV_REL, REL_HWHEEL_HI_RES, NULL);
+
+	libinput_plugin_enable_device_event_frame(libinput_plugin, device, true);
+	libinput_plugin_enable_evdev_usage(libinput_plugin, EVDEV_REL_WHEEL);
+	libinput_plugin_enable_evdev_usage(libinput_plugin, EVDEV_REL_HWHEEL);
+
+	/* A device may have those disabled via a quirk but we just re-enabled it
+	 * above. Make sure we get those events too to filter them out */
+	libinput_plugin_enable_evdev_usage(libinput_plugin, EVDEV_REL_WHEEL_HI_RES);
+	libinput_plugin_enable_evdev_usage(libinput_plugin, EVDEV_REL_HWHEEL_HI_RES);
+}
+
+static void
+wheel_plugin_evdev_frame(struct libinput_plugin *libinput_plugin,
+			 struct libinput_device *device,
+			 struct evdev_frame *frame)
+{
+	size_t nevents;
+	struct evdev_event *events = evdev_frame_get_events(frame, &nevents);
+
+	_unref_(evdev_frame) *filtered_frame = evdev_frame_new(nevents + 2);
+	for (size_t i = 0; i < nevents; i++) {
+		struct evdev_event *e = &events[i];
+
+		switch (evdev_usage_enum(e->usage)) {
+		case EVDEV_REL_WHEEL_HI_RES:
+		case EVDEV_REL_HWHEEL_HI_RES:
+			/* In the uncommon case that our device sends high-res events
+			 * filter those out. This can happen on devices that have the
+			 * highres scroll axes disabled via quirks. The device still
+			 * sends events so when we re-enable the axis in
+			 * wheel_plugin_device_new we get the device events again,
+			 * effectively duplicating the high resolution scroll events.
+			 */
+			break;
+		case EVDEV_REL_WHEEL:
+			evdev_frame_append(filtered_frame, e, 1);
+			evdev_frame_append_one(filtered_frame,
+					       evdev_usage_from(EVDEV_REL_WHEEL_HI_RES),
+					       e->value * 120);
+			break;
+		case EVDEV_REL_HWHEEL:
+			evdev_frame_append(filtered_frame, e, 1);
+			evdev_frame_append_one(
+				filtered_frame,
+				evdev_usage_from(EVDEV_REL_HWHEEL_HI_RES),
+				e->value * 120);
+			break;
+		default:
+			evdev_frame_append(filtered_frame, e, 1);
+			break;
+		}
+	}
+
+	evdev_frame_set(frame,
+			evdev_frame_get_events(filtered_frame, NULL),
+			evdev_frame_get_count(filtered_frame));
+}
+
+static const struct libinput_plugin_interface interface = {
+	.device_new = wheel_plugin_device_new,
+	.evdev_frame = wheel_plugin_evdev_frame,
+};
+
+void
+libinput_mouse_plugin_wheel_lowres(struct libinput *libinput)
+{
+	_unref_(libinput_plugin) *p =
+		libinput_plugin_new(libinput, "mouse-wheel-lowres", &interface, NULL);
+}

src/libinput-plugin-mouse-wheel-lowres.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright © 2025 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "config.h"
+
+#include "libinput-plugin.h"
+#include "libinput.h"
+
+void
+libinput_mouse_plugin_wheel_lowres(struct libinput *libinput);

src/libinput-plugin-mouse-wheel.c

@@ -31,14 +31,16 @@
 
 #include "evdev-fallback.h"
 #include "evdev.h"
+#include "libinput-feature.h"
 #include "libinput-log.h"
 #include "libinput-plugin-mouse-wheel.h"
 #include "libinput-plugin.h"
+#include "libinput-private.h"
 #include "libinput-util.h"
 
 #define ACC_V120_TRIGGER_THRESHOLD 30  /* 1/4 of a wheel detent */
-#define ACC_V120_THRESHOLD 59
-#define WHEEL_SCROLL_TIMEOUT ms2us(500)
+#define ACC_V120_THRESHOLD 47 /* Good for both high-ish multipliers (8/120) and the rest of the mice (30/120, 40/120, etc) */
+const usec_t WHEEL_SCROLL_TIMEOUT = { 500 * 1000 };
 
 enum wheel_state {
 	WHEEL_STATE_NONE,
@@ -62,8 +64,7 @@ enum wheel_event {
 };
 
 enum ignore_strategy {
-	MAYBE,             /* use heuristics but don't yet accumulate */
-	PASSTHROUGH,       /* do not accumulate, pass through */
+	MAYBE = 1,         /* use heuristics but don't yet accumulate */
 	ACCUMULATE,        /* accumulate scroll wheel events */
 	ALWAYS_ACCUMULATE, /* always accumulate wheel events */
 };
@@ -83,6 +84,8 @@ struct plugin_device {
 	int min_movement;
 
 	struct ratelimit hires_warning_limit;
+
+	bool want_feature_disabled;
 };
 
 struct plugin_data {
@@ -123,12 +126,13 @@ log_wheel_bug(struct plugin_device *pd, enum wheel_event event)
 }
 
 static inline void
-wheel_set_scroll_timer(struct plugin_device *pd, uint64_t time)
+wheel_set_scroll_timer(struct plugin_device *pd, usec_t time)
 {
 	if (!pd->scroll_timer)
 		return;
 
-	libinput_plugin_timer_set(pd->scroll_timer, time + WHEEL_SCROLL_TIMEOUT);
+	libinput_plugin_timer_set(pd->scroll_timer,
+				  usec_add(time, WHEEL_SCROLL_TIMEOUT));
 }
 
 static inline void
@@ -140,10 +144,29 @@ wheel_cancel_scroll_timer(struct plugin_device *pd)
 	libinput_plugin_timer_cancel(pd->scroll_timer);
 }
 
+static inline void
+wheel_maybe_disable(struct plugin_device *device)
+{
+	if (device->state != WHEEL_STATE_NONE)
+		return;
+
+	if (device->want_feature_disabled) {
+		plugin_log_debug(device->parent->plugin,
+				 "%s: disabled wheel debouncing on request\n",
+				 libinput_device_get_name(device->device));
+		libinput_plugin_enable_device_event_frame(device->parent->plugin,
+							  device->device,
+							  false);
+		libinput_plugin_timer_cancel(device->scroll_timer);
+		device->scroll_timer =
+			libinput_plugin_timer_unref(device->scroll_timer);
+	}
+}
+
 static void
 wheel_handle_event_on_state_none(struct plugin_device *pd,
 				 enum wheel_event event,
-				 uint64_t time)
+				 usec_t time)
 {
 	switch (event) {
 	case WHEEL_EVENT_SCROLL:
@@ -152,7 +175,6 @@ wheel_handle_event_on_state_none(struct plugin_device *pd,
 		case ALWAYS_ACCUMULATE:
 			pd->state = WHEEL_STATE_ACCUMULATING_SCROLL;
 			break;
-		case PASSTHROUGH:
 		case MAYBE:
 			pd->state = WHEEL_STATE_SCROLLING;
 			break;
@@ -170,7 +192,7 @@ wheel_handle_event_on_state_none(struct plugin_device *pd,
 static void
 wheel_handle_event_on_state_accumulating_scroll(struct plugin_device *pd,
 						enum wheel_event event,
-						uint64_t time)
+						usec_t time)
 {
 	switch (event) {
 	case WHEEL_EVENT_SCROLL_ACCUMULATED:
@@ -192,7 +214,7 @@ wheel_handle_event_on_state_accumulating_scroll(struct plugin_device *pd,
 static void
 wheel_handle_event_on_state_scrolling(struct plugin_device *pd,
 				      enum wheel_event event,
-				      uint64_t time)
+				      usec_t time)
 {
 	switch (event) {
 	case WHEEL_EVENT_SCROLL:
@@ -212,7 +234,7 @@ wheel_handle_event_on_state_scrolling(struct plugin_device *pd,
 }
 
 static void
-wheel_handle_event(struct plugin_device *pd, enum wheel_event event, uint64_t time)
+wheel_handle_event(struct plugin_device *pd, enum wheel_event event, usec_t time)
 {
 	enum wheel_state oldstate = pd->state;
 
@@ -298,14 +320,14 @@ wheel_queue_scroll_events(struct plugin_device *pd, struct evdev_frame *frame)
 static void
 wheel_handle_state_none(struct plugin_device *pd,
 			struct evdev_frame *frame,
-			uint64_t time)
+			usec_t time)
 {
 }
 
 static void
 wheel_handle_state_accumulating_scroll(struct plugin_device *pd,
 				       struct evdev_frame *frame,
-				       uint64_t time)
+				       usec_t time)
 {
 	wheel_remove_scroll_events(frame);
 
@@ -319,7 +341,7 @@ wheel_handle_state_accumulating_scroll(struct plugin_device *pd,
 static void
 wheel_handle_state_scrolling(struct plugin_device *pd,
 			     struct evdev_frame *frame,
-			     uint64_t time)
+			     usec_t time)
 {
 	wheel_remove_scroll_events(frame);
 	wheel_queue_scroll_events(pd, frame);
@@ -328,7 +350,7 @@ wheel_handle_state_scrolling(struct plugin_device *pd,
 static void
 wheel_handle_direction_change(struct plugin_device *pd,
 			      struct evdev_event *e,
-			      uint64_t time)
+			      usec_t time)
 {
 	enum wheel_direction new_dir = WHEEL_DIR_UNKNOW;
 
@@ -365,7 +387,7 @@ wheel_update_strategy(struct plugin_device *pd, int32_t value)
 }
 
 static void
-wheel_process_relative(struct plugin_device *pd, struct evdev_event *e, uint64_t time)
+wheel_process_relative(struct plugin_device *pd, struct evdev_event *e, usec_t time)
 {
 	switch (evdev_usage_enum(e->usage)) {
 	case EVDEV_REL_WHEEL:
@@ -396,7 +418,7 @@ wheel_process_relative(struct plugin_device *pd, struct evdev_event *e, uint64_t
 }
 
 static void
-wheel_handle_state(struct plugin_device *pd, struct evdev_frame *frame, uint64_t time)
+wheel_handle_state(struct plugin_device *pd, struct evdev_frame *frame, usec_t time)
 {
 	struct evdev_device *evdev = evdev_device(pd->device);
 
@@ -422,10 +444,12 @@ wheel_handle_state(struct plugin_device *pd, struct evdev_frame *frame, uint64_t
 		wheel_handle_state_scrolling(pd, frame, time);
 		break;
 	}
+
+	wheel_maybe_disable(pd);
 }
 
 static void
-wheel_on_scroll_timer_timeout(struct libinput_plugin *plugin, uint64_t now, void *data)
+wheel_on_scroll_timer_timeout(struct libinput_plugin *plugin, usec_t now, void *data)
 {
 	struct plugin_device *pd = data;
 
@@ -437,32 +461,27 @@ wheel_plugin_device_create(struct libinput_plugin *libinput_plugin,
 			   struct plugin_data *plugin,
 			   struct libinput_device *device)
 {
-	struct evdev_device *evdev = evdev_device(device);
-	struct plugin_device *pd = zalloc(sizeof(*pd));
+	if (libinput_device_is_virtual(device))
+		return NULL;
 
+	struct plugin_device *pd = zalloc(sizeof(*pd));
 	pd->parent = plugin;
 	pd->device = libinput_device_ref(device);
 	pd->state = WHEEL_STATE_NONE;
 	pd->dir = WHEEL_DIR_UNKNOW;
 	pd->min_movement = ACC_V120_THRESHOLD;
-	ratelimit_init(&pd->hires_warning_limit, s2us(24 * 60 * 60), 1);
+	ratelimit_init(&pd->hires_warning_limit, usec_from_hours(24), 1);
 
-	if (evdev_device_is_virtual(evdev))
-		pd->ignore_small_hi_res_movements = PASSTHROUGH;
-	else if (libinput_device_has_model_quirk(device,
-						 QUIRK_MODEL_LOGITECH_MX_MASTER_3))
+	if (libinput_device_has_model_quirk(device, QUIRK_MODEL_SCROLL_ON_MIDDLE_CLICK))
 		pd->ignore_small_hi_res_movements = ALWAYS_ACCUMULATE;
 	else
 		pd->ignore_small_hi_res_movements = MAYBE;
 
-	if (pd->ignore_small_hi_res_movements != PASSTHROUGH) {
-		pd->scroll_timer =
-			libinput_plugin_timer_new(libinput_plugin,
-						  libinput_device_get_sysname(device),
-						  wheel_on_scroll_timer_timeout,
-						  pd);
-	}
-
+	pd->scroll_timer =
+		libinput_plugin_timer_new(libinput_plugin,
+					  libinput_device_get_sysname(device),
+					  wheel_on_scroll_timer_timeout,
+					  pd);
 	return pd;
 }
 
@@ -504,12 +523,20 @@ wheel_plugin_device_new(struct libinput_plugin *libinput_plugin,
 	    !libevdev_has_event_code(libevdev, EV_REL, REL_HWHEEL_HI_RES))
 		return;
 
-	libinput_plugin_enable_device_event_frame(libinput_plugin, device, true);
-
 	struct plugin_data *plugin = libinput_plugin_get_user_data(libinput_plugin);
 	struct plugin_device *pd =
 		wheel_plugin_device_create(libinput_plugin, plugin, device);
+	if (!pd)
+		return;
+
 	list_take_append(&plugin->devices, pd, link);
+
+	libinput_plugin_enable_device_event_frame(libinput_plugin, device, true);
+
+	libinput_plugin_enable_evdev_usage(libinput_plugin, EVDEV_REL_WHEEL);
+	libinput_plugin_enable_evdev_usage(libinput_plugin, EVDEV_REL_WHEEL_HI_RES);
+	libinput_plugin_enable_evdev_usage(libinput_plugin, EVDEV_REL_HWHEEL);
+	libinput_plugin_enable_evdev_usage(libinput_plugin, EVDEV_REL_HWHEEL_HI_RES);
 }
 
 static void
@@ -549,7 +576,7 @@ wheel_plugin_device_removed(struct libinput_plugin *libinput_plugin,
 }
 
 static void
-wheel_handle_frame(struct plugin_device *pd, struct evdev_frame *frame, uint64_t time)
+wheel_handle_frame(struct plugin_device *pd, struct evdev_frame *frame, usec_t time)
 {
 	size_t nevents;
 	struct evdev_event *events = evdev_frame_get_events(frame, &nevents);
@@ -576,7 +603,7 @@ wheel_plugin_evdev_frame(struct libinput_plugin *libinput_plugin,
 {
 	struct plugin_data *plugin = libinput_plugin_get_user_data(libinput_plugin);
 	struct plugin_device *pd;
-	uint64_t time = evdev_frame_get_time(frame);
+	usec_t time = evdev_frame_get_time(frame);
 
 	list_for_each(pd, &plugin->devices, link) {
 		if (pd->device == device) {
@@ -586,6 +613,24 @@ wheel_plugin_evdev_frame(struct libinput_plugin *libinput_plugin,
 	}
 }
 
+static void
+wheel_plugin_feature_disabled(struct libinput_plugin *libinput_plugin,
+			      struct libinput_device *device,
+			      enum libinput_feature feature)
+{
+	if (feature != LIBINPUT_FEATURE_WHEEL_DEBOUNCING)
+		return;
+
+	struct plugin_data *plugin = libinput_plugin_get_user_data(libinput_plugin);
+	struct plugin_device *pd;
+	list_for_each(pd, &plugin->devices, link) {
+		if (pd->device == device) {
+			pd->want_feature_disabled = true;
+			return;
+		}
+	}
+}
+
 static const struct libinput_plugin_interface interface = {
 	.run = NULL,
 	.destroy = wheel_plugin_destroy,
@@ -594,6 +639,7 @@ static const struct libinput_plugin_interface interface = {
 	.device_added = wheel_plugin_device_added,
 	.device_removed = wheel_plugin_device_removed,
 	.evdev_frame = wheel_plugin_evdev_frame,
+	.feature_disabled = wheel_plugin_feature_disabled,
 };
 
 void

src/libinput-plugin-mtdev.c

@@ -89,7 +89,7 @@ mtdev_plugin_device_handle_frame(struct libinput_plugin *libinput_plugin,
 				 struct plugin_device *device,
 				 struct evdev_frame *frame)
 {
-	uint64_t time = evdev_frame_get_time(frame);
+	usec_t time = evdev_frame_get_time(frame);
 	size_t nevents;
 	struct evdev_event *events = evdev_frame_get_events(frame, &nevents);
 	for (size_t i = 0; i < nevents; i++) {

src/libinput-plugin-private.h

@@ -47,8 +47,3 @@ libinput_plugin_notify_device_ignored(struct libinput_plugin *plugin,
 void
 libinput_plugin_notify_device_removed(struct libinput_plugin *plugin,
 				      struct libinput_device *device);
-
-void
-libinput_plugin_notify_evdev_frame(struct libinput_plugin *plugin,
-				   struct libinput_device *device,
-				   struct evdev_frame *frame);

src/libinput-plugin-system.h

@@ -34,6 +34,7 @@
 #include "evdev-frame.h"
 #include "libinput.h"
 
+enum libinput_feature;
 struct libinput;
 struct libinput_plugin;
 
@@ -41,6 +42,7 @@ struct libinput_plugin_system {
 	char **directories; /* NULL once loaded == true */
 
 	bool loaded;
+	bool autoload;
 
 	struct list plugins;
 	struct list removed_plugins;
@@ -52,8 +54,7 @@ void
 libinput_plugin_system_init(struct libinput_plugin_system *system);
 
 void
-libinput_plugin_system_load_internal_plugins(struct libinput *libinput,
-					     struct libinput_plugin_system *system);
+libinput_plugin_system_autoload(struct libinput *libinput);
 
 void
 libinput_plugin_system_destroy(struct libinput_plugin_system *system);
@@ -95,3 +96,9 @@ void
 libinput_plugin_system_notify_evdev_frame(struct libinput_plugin_system *system,
 					  struct libinput_device *device,
 					  struct evdev_frame *frame);
+
+void
+libinput_plugin_system_notify_device_feature_disabled(
+	struct libinput_plugin_system *system,
+	struct libinput_device *device,
+	enum libinput_feature feature);

src/libinput-plugin-tablet-double-tool.c

@@ -180,7 +180,7 @@ double_tool_plugin_device_handle_frame(struct libinput_plugin *libinput_plugin,
 	bool eraser_toggled = eraser_toggle != NULL;
 	bool pen_toggled = pen_toggle != NULL;
 
-#if EVENT_DEBUGGING
+#ifdef EVENT_DEBUGGING
 	plugin_log_debug(libinput_plugin,
 			 "device %s: tool state: pen:%s eraser:%s\n",
 			 libinput_device_get_name(device->device),
@@ -217,6 +217,9 @@ double_tool_plugin_device_handle_frame(struct libinput_plugin *libinput_plugin,
 				libinput_plugin,
 				"device %s: device is fine, unregistering device\n",
 				libinput_device_get_name(device->device));
+			libinput_plugin_enable_device_event_frame(libinput_plugin,
+								  device->device,
+								  false);
 			plugin_device_destroy(device);
 			return;
 		}
@@ -339,6 +342,8 @@ double_tool_plugin_device_added(struct libinput_plugin *libinput_plugin,
 		return;
 
 	libinput_plugin_enable_device_event_frame(libinput_plugin, device, true);
+	libinput_plugin_enable_evdev_usage(libinput_plugin, EVDEV_BTN_TOOL_PEN);
+	libinput_plugin_enable_evdev_usage(libinput_plugin, EVDEV_BTN_TOOL_RUBBER);
 
 	struct plugin_data *plugin = libinput_plugin_get_user_data(libinput_plugin);
 	struct plugin_device *pd = zalloc(sizeof(*pd));

src/libinput-plugin-tablet-eraser-button.c

@@ -35,7 +35,7 @@
 #include "libinput-plugin.h"
 #include "libinput-util.h"
 
-static int ERASER_BUTTON_DELAY = 30 * 1000; /* µs */
+static usec_t ERASER_BUTTON_DELAY = { 30 * 1000 }; /* µs */
 
 enum frame_filter_state {
 	DISCARD,
@@ -146,9 +146,9 @@ eraser_button_set_state(struct plugin_device *device, enum eraser_button_state t
 }
 
 static void
-eraser_button_set_timer(struct plugin_device *device, uint64_t time)
+eraser_button_set_timer(struct plugin_device *device, usec_t time)
 {
-	libinput_plugin_timer_set(device->timer, time + ERASER_BUTTON_DELAY);
+	libinput_plugin_timer_set(device->timer, usec_add(time, ERASER_BUTTON_DELAY));
 }
 
 static void
@@ -235,7 +235,7 @@ static enum frame_filter_state
 eraser_button_neutral_handle_event(struct plugin_device *device,
 				   struct evdev_frame *frame,
 				   enum eraser_button_event event,
-				   uint64_t time)
+				   usec_t time)
 {
 	switch (event) {
 	case ERASER_EVENT_PEN_ENTERING_PROX:
@@ -266,7 +266,7 @@ static enum frame_filter_state
 eraser_button_pending_eraser_handle_event(struct plugin_device *device,
 					  struct evdev_frame *frame,
 					  enum eraser_button_event event,
-					  uint64_t time)
+					  usec_t time)
 {
 	switch (event) {
 	case ERASER_EVENT_PEN_ENTERING_PROX:
@@ -306,7 +306,7 @@ static enum frame_filter_state
 eraser_button_button_held_handle_event(struct plugin_device *device,
 				       struct evdev_frame *frame,
 				       enum eraser_button_event event,
-				       uint64_t time)
+				       usec_t time)
 {
 	switch (event) {
 	case ERASER_EVENT_PEN_ENTERING_PROX:
@@ -339,7 +339,7 @@ static enum frame_filter_state
 eraser_button_button_released_handle_event(struct plugin_device *device,
 					   struct evdev_frame *frame,
 					   enum eraser_button_event event,
-					   uint64_t time)
+					   usec_t time)
 {
 	switch (event) {
 	case ERASER_EVENT_PEN_ENTERING_PROX:
@@ -379,7 +379,7 @@ static enum frame_filter_state
 eraser_button_handle_state(struct plugin_device *device,
 			   struct evdev_frame *frame,
 			   enum eraser_button_event event,
-			   uint64_t time)
+			   usec_t time)
 {
 	enum eraser_button_state state = device->state;
 	enum frame_filter_state ret = PROCESS;
@@ -426,7 +426,7 @@ eraser_button_handle_state(struct plugin_device *device,
 static void
 eraser_button_handle_frame(struct plugin_device *device,
 			   struct evdev_frame *frame,
-			   uint64_t time)
+			   usec_t time)
 {
 	if (device->mode == LIBINPUT_CONFIG_ERASER_BUTTON_DEFAULT)
 		return;
@@ -505,7 +505,7 @@ eraser_button_plugin_evdev_frame(struct libinput_plugin *libinput_plugin,
 {
 	struct plugin_data *plugin = libinput_plugin_get_user_data(libinput_plugin);
 	struct plugin_device *pd;
-	uint64_t time = evdev_frame_get_time(frame);
+	usec_t time = evdev_frame_get_time(frame);
 
 	list_for_each(pd, &plugin->devices, link) {
 		if (pd->device == device) {
@@ -516,7 +516,7 @@ eraser_button_plugin_evdev_frame(struct libinput_plugin *libinput_plugin,
 }
 
 static void
-eraser_button_timer_func(struct libinput_plugin *plugin, uint64_t now, void *d)
+eraser_button_timer_func(struct libinput_plugin *plugin, usec_t now, void *d)
 {
 	struct plugin_device *device = d;
 
@@ -541,6 +541,13 @@ eraser_button_plugin_device_added(struct libinput_plugin *libinput_plugin,
 		return;
 
 	libinput_plugin_enable_device_event_frame(libinput_plugin, device, true);
+	libinput_plugin_enable_evdev_usage(libinput_plugin, EVDEV_BTN_TOOL_PEN);
+	libinput_plugin_enable_evdev_usage(libinput_plugin, EVDEV_BTN_TOOL_RUBBER);
+	libinput_plugin_enable_evdev_usage(libinput_plugin, EVDEV_BTN_TOUCH);
+	/* These are the only ones we allow setting the eraser button to */
+	libinput_plugin_enable_evdev_usage(libinput_plugin, EVDEV_BTN_STYLUS);
+	libinput_plugin_enable_evdev_usage(libinput_plugin, EVDEV_BTN_STYLUS2);
+	libinput_plugin_enable_evdev_usage(libinput_plugin, EVDEV_BTN_STYLUS3);
 
 	struct plugin_data *plugin = libinput_plugin_get_user_data(libinput_plugin);
 	struct plugin_device *pd = zalloc(sizeof(*pd));
@@ -600,7 +607,7 @@ void
 libinput_tablet_plugin_eraser_button(struct libinput *libinput)
 {
 	if (getenv("LIBINPUT_RUNNING_TEST_SUITE"))
-		ERASER_BUTTON_DELAY = ms2us(150);
+		ERASER_BUTTON_DELAY = usec_from_millis(150);
 
 	_destroy_(plugin_data) *plugin = zalloc(sizeof(*plugin));
 	list_init(&plugin->devices);

src/libinput-plugin-tablet-forced-tool.c

@@ -53,6 +53,8 @@ struct plugin_device {
 	struct list link;
 	struct libinput_device *device;
 	bitmask_t tool_state;
+	bool pen_forced_into_proximity;
+	size_t pen_prox_out_events;
 };
 
 struct plugin_data {
@@ -89,6 +91,18 @@ plugin_destroy(struct libinput_plugin *libinput_plugin)
 	plugin_data_destroy(plugin);
 }
 
+static void
+forced_tool_plugin_force_pen_out(struct libinput_plugin *libinput_plugin,
+				 struct libinput_device *device,
+				 struct evdev_frame *frame)
+{
+	_unref_(evdev_frame) *prox_out_frame = evdev_frame_new(2);
+	evdev_frame_append_one(prox_out_frame, evdev_usage_from(EVDEV_BTN_TOOL_PEN), 0);
+	evdev_frame_set_time(prox_out_frame, evdev_frame_get_time(frame));
+
+	libinput_plugin_prepend_evdev_frame(libinput_plugin, device, prox_out_frame);
+}
+
 static void
 forced_tool_plugin_device_handle_frame(struct libinput_plugin *libinput_plugin,
 				       struct plugin_device *device,
@@ -103,21 +117,51 @@ forced_tool_plugin_device_handle_frame(struct libinput_plugin *libinput_plugin,
 		struct evdev_event *event = &events[i];
 		switch (evdev_usage_enum(event->usage)) {
 		case EVDEV_BTN_TOOL_PEN:
+			if (event->value == 1) {
+				bitmask_set_bit(&device->tool_state, BTN_TOOL_PEN);
+			} else {
+				bitmask_clear_bit(&device->tool_state, BTN_TOOL_PEN);
+				device->pen_forced_into_proximity = false;
+
+				/* If we get three valid pen proximity out events, let's
+				 * assume this device works fine and disable our plugin
+				 */
+				if (++device->pen_prox_out_events > 2) {
+					plugin_log_debug(
+						libinput_plugin,
+						"%s: forced tool handling unloaded\n",
+						libinput_device_get_name(
+							device->device));
+					libinput_plugin_enable_device_event_frame(
+						libinput_plugin,
+						device->device,
+						false);
+					plugin_device_destroy(device);
+					return;
+				}
+			}
+			return; /* Nothing to do */
 		case EVDEV_BTN_TOOL_RUBBER:
 		case EVDEV_BTN_TOOL_BRUSH:
 		case EVDEV_BTN_TOOL_PENCIL:
 		case EVDEV_BTN_TOOL_AIRBRUSH:
 		case EVDEV_BTN_TOOL_MOUSE:
-		case EVDEV_BTN_TOOL_LENS:
+		case EVDEV_BTN_TOOL_LENS: {
+			int code = evdev_event_code(event) - BTN_TOOL_PEN;
 			if (event->value == 1) {
-				bitmask_set_bit(&device->tool_state,
-						evdev_event_code(event) - BTN_TOOL_PEN);
+				bitmask_set_bit(&device->tool_state, code);
+				if (device->pen_forced_into_proximity) {
+					forced_tool_plugin_force_pen_out(
+						libinput_plugin,
+						device->device,
+						frame);
+					device->pen_forced_into_proximity = false;
+				}
 			} else {
-				bitmask_clear_bit(&device->tool_state,
-						  evdev_event_code(event) -
-							  BTN_TOOL_PEN);
+				bitmask_clear_bit(&device->tool_state, code);
 			}
-			return; /* Nothing to do */
+			return; /* Keep the frame as-is */
+		}
 		case EVDEV_ABS_X:
 		case EVDEV_ABS_Y:
 		case EVDEV_ABS_Z: /* rotation */
@@ -155,6 +199,7 @@ forced_tool_plugin_device_handle_frame(struct libinput_plugin *libinput_plugin,
 	evdev_frame_append_one(frame,
 			       evdev_usage_from(EVDEV_BTN_TOOL_PEN),
 			       1); /* libinput's event frame will have space */
+	device->pen_forced_into_proximity = true;
 }
 
 static void

src/libinput-plugin-tablet-proximity-timer.c

@@ -39,14 +39,14 @@
 /* The tablet sends events every ~2ms , 50ms should be plenty enough to
    detect out-of-range.
    This value is higher during test suite runs */
-static int FORCED_PROXOUT_TIMEOUT = 50 * 1000; /* µs */
+static usec_t FORCED_PROXOUT_TIMEOUT = { 50 * 1000 };
 
 struct plugin_device {
 	struct list link;
 
 	struct libinput_plugin_timer *prox_out_timer;
 	bool proximity_out_forced;
-	uint64_t last_event_time;
+	usec_t last_event_time;
 
 	bool pen_state;
 	bitmask_t button_state;
@@ -86,18 +86,16 @@ plugin_data_destroy(void *d)
 	free(data);
 }
 
-DEFINE_DESTROY_CLEANUP_FUNC(plugin_data);
-
 static inline void
-proximity_timer_plugin_set_timer(struct plugin_device *device, uint64_t time)
+proximity_timer_plugin_set_timer(struct plugin_device *device, usec_t time)
 {
 	libinput_plugin_timer_set(device->prox_out_timer,
-				  time + FORCED_PROXOUT_TIMEOUT);
+				  usec_add(time, FORCED_PROXOUT_TIMEOUT));
 }
 
 static void
 tablet_proximity_out_quirk_timer_func(struct libinput_plugin *plugin,
-				      uint64_t now,
+				      usec_t now,
 				      void *data)
 {
 	struct plugin_device *device = data;
@@ -107,7 +105,8 @@ tablet_proximity_out_quirk_timer_func(struct libinput_plugin *plugin,
 		return;
 	}
 
-	if (device->last_event_time > now - FORCED_PROXOUT_TIMEOUT) {
+	usec_t proxout_time = usec_sub(now, FORCED_PROXOUT_TIMEOUT);
+	if (usec_cmp(device->last_event_time, proxout_time) > 0) {
 		proximity_timer_plugin_set_timer(device, device->last_event_time);
 		return;
 	}
@@ -146,11 +145,10 @@ proximity_timer_plugin_device_handle_frame(struct libinput_plugin *libinput_plug
 					   struct plugin_device *device,
 					   struct evdev_frame *frame)
 {
-	uint64_t time = evdev_frame_get_time(frame);
+	usec_t time = evdev_frame_get_time(frame);
 	/* First event after adding a device - by definition the pen
-	 *
 	 * is in proximity if we get this one */
-	if (device->last_event_time == 0)
+	if (usec_is_zero(device->last_event_time))
 		proximity_timer_plugin_set_timer(device, time);
 
 	device->last_event_time = time;
@@ -188,6 +186,9 @@ proximity_timer_plugin_device_handle_frame(struct libinput_plugin *libinput_plug
 		case EVDEV_BTN_TOOL_FINGER:
 		case EVDEV_BTN_TOOL_MOUSE:
 		case EVDEV_BTN_TOOL_LENS:
+			libinput_plugin_enable_device_event_frame(libinput_plugin,
+								  device->device,
+								  false);
 			plugin_device_destroy(device);
 			return;
 		default:
@@ -207,6 +208,9 @@ proximity_timer_plugin_device_handle_frame(struct libinput_plugin *libinput_plug
 			plugin_log_debug(libinput_plugin,
 					 "%s: proximity out timer unloaded\n",
 					 libinput_device_get_name(device->device));
+			libinput_plugin_enable_device_event_frame(libinput_plugin,
+								  device->device,
+								  false);
 			plugin_device_destroy(device);
 			return;
 		}
@@ -299,7 +303,7 @@ libinput_tablet_plugin_proximity_timer(struct libinput *libinput)
 
 	/* Stop false positives caused by the forced proximity code */
 	if (getenv("LIBINPUT_RUNNING_TEST_SUITE"))
-		FORCED_PROXOUT_TIMEOUT = 150 * 1000; /* µs */
+		FORCED_PROXOUT_TIMEOUT = usec_from_millis(150);
 
 	_unref_(libinput_plugin) *p = libinput_plugin_new(libinput,
 							  "tablet-proximity-timer",

src/libinput-plugin.c

@@ -28,11 +28,16 @@
 #include "util-files.h"
 #include "util-list.h"
 
+#include "evdev-frame.h"
 #include "evdev-plugin.h"
+#include "libinput-feature.h"
 #include "libinput-plugin-button-debounce.h"
+#include "libinput-plugin-lua.h"
+#include "libinput-plugin-mouse-wheel-lowres.h"
 #include "libinput-plugin-mouse-wheel.h"
 #include "libinput-plugin-mtdev.h"
 #include "libinput-plugin-private.h"
+#include "libinput-plugin-system.h"
 #include "libinput-plugin-tablet-double-tool.h"
 #include "libinput-plugin-tablet-eraser-button.h"
 #include "libinput-plugin-tablet-forced-tool.h"
@@ -60,6 +65,8 @@ struct libinput_plugin {
 		struct list *after;
 		struct list *before;
 	} event_queue;
+
+	struct evdev_mask *mask;
 };
 
 struct libinput_plugin_timer {
@@ -67,7 +74,7 @@ struct libinput_plugin_timer {
 	struct list link;
 	struct libinput_plugin *plugin;
 	struct libinput_timer timer;
-	void (*func)(struct libinput_plugin *plugin, uint64_t now, void *user_data);
+	void (*func)(struct libinput_plugin *plugin, usec_t now, void *user_data);
 	void *user_data;
 };
 
@@ -91,6 +98,10 @@ plugin_log_msg(struct libinput_plugin *plugin,
 	log_msg(plugin->libinput, priority, "%s%s", prefix, message);
 }
 
+static void
+libinput_plugin_system_load_internal_plugins(struct libinput *libinput,
+					     struct libinput_plugin_system *system);
+
 struct libinput_plugin *
 libinput_plugin_new(struct libinput *libinput,
 		    const char *name,
@@ -151,6 +162,7 @@ libinput_plugin_unref(struct libinput_plugin *plugin)
 		if (plugin->interface->destroy)
 			plugin->interface->destroy(plugin);
 		free(plugin->name);
+		evdev_mask_destroy(plugin->mask);
 		free(plugin);
 	}
 	return NULL;
@@ -192,6 +204,32 @@ libinput_plugin_enable_device_event_frame(struct libinput_plugin *plugin,
 	}
 }
 
+void
+libinput_plugin_enable_evdev_usage(struct libinput_plugin *plugin,
+				   enum evdev_usage usage)
+{
+	if (!plugin->mask)
+		plugin->mask = evdev_mask_new();
+
+	evdev_mask_set_usage(plugin->mask, evdev_usage_from(usage));
+}
+
+void
+libinput_plugin_disable_device_feature(struct libinput_plugin *plugin,
+				       struct libinput_device *device,
+				       enum libinput_feature feature)
+{
+	struct libinput *libinput = plugin->libinput;
+
+	/* During device-added, only some plugins are loaded so this notifies
+	 * some of the plugins. All plugins are notified once device-added is
+	 * complete.  */
+	libinput_plugin_system_notify_device_feature_disabled(&libinput->plugin_system,
+							      device,
+							      feature);
+	bitmask_set_bit(&device->disabled_features, feature);
+}
+
 struct plugin_queued_event {
 	struct list link;
 	struct evdev_frame *frame;      /* owns a ref */
@@ -312,13 +350,92 @@ libinput_plugin_notify_device_removed(struct libinput_plugin *plugin,
 		plugin->interface->device_removed(plugin, device);
 }
 
-void
-libinput_plugin_notify_evdev_frame(struct libinput_plugin *plugin,
-				   struct libinput_device *device,
-				   struct evdev_frame *frame)
+static void
+plugin_system_append_path(struct libinput_plugin_system *plugin_system,
+			  const char *path)
 {
-	if (plugin->interface->evdev_frame)
-		plugin->interface->evdev_frame(plugin, device, frame);
+	if (strv_find(plugin_system->directories, path, NULL))
+		return;
+
+	plugin_system->directories =
+		strv_append_strdup(plugin_system->directories, path);
+}
+
+LIBINPUT_EXPORT void
+libinput_plugin_system_append_path(struct libinput *libinput, const char *path)
+{
+	if (libinput->plugin_system.loaded) {
+		log_bug_client(libinput, "plugin system already initialized\n");
+		return;
+	}
+
+	libinput->plugin_system.autoload = false;
+
+	plugin_system_append_path(&libinput->plugin_system, path);
+}
+
+LIBINPUT_EXPORT void
+libinput_plugin_system_append_default_paths(struct libinput *libinput)
+{
+	if (libinput->plugin_system.loaded) {
+		log_bug_client(libinput, "plugin system already initialized\n");
+		return;
+	}
+
+	libinput->plugin_system.autoload = false;
+
+	plugin_system_append_path(&libinput->plugin_system, LIBINPUT_PLUGIN_ETCDIR);
+	plugin_system_append_path(&libinput->plugin_system, LIBINPUT_PLUGIN_LIBDIR);
+}
+
+void
+libinput_plugin_system_autoload(struct libinput *libinput)
+{
+	if (libinput->plugin_system.loaded)
+		return;
+
+	if (libinput->plugin_system.autoload) {
+		libinput_plugin_system_append_default_paths(libinput);
+		libinput_plugin_system_load_plugins(libinput,
+						    LIBINPUT_PLUGIN_SYSTEM_FLAG_NONE);
+	} else {
+		libinput_plugin_system_load_internal_plugins(libinput,
+							     &libinput->plugin_system);
+	}
+}
+
+LIBINPUT_EXPORT int
+libinput_plugin_system_load_plugins(struct libinput *libinput,
+				    enum libinput_plugin_system_flags flags)
+{
+	if (libinput->plugin_system.loaded) {
+		log_bug_client(libinput, "%s() called twice\n", __func__);
+		return 0;
+	}
+
+#ifdef HAVE_LUA
+	_autostrvfree_ char **directories = steal(&libinput->plugin_system.directories);
+	size_t nfiles = 0;
+	_autostrvfree_ char **plugin_files =
+		list_files((const char **)directories, ".lua", &nfiles);
+	for (size_t i = 0; i < nfiles; i++) {
+		char *path = plugin_files[i];
+		log_debug(libinput, "Loading plugin from %s\n", path);
+		libinput_lua_plugin_new_from_path(libinput, path);
+	}
+#endif
+
+	libinput_plugin_system_load_internal_plugins(libinput,
+						     &libinput->plugin_system);
+	libinput->plugin_system.loaded = true;
+
+	libinput_plugin_system_run(&libinput->plugin_system);
+
+#ifdef HAVE_PLUGINS
+	return 0;
+#else
+	return -ENOSYS;
+#endif
 }
 
 void
@@ -367,11 +484,16 @@ void
 libinput_plugin_system_init(struct libinput_plugin_system *system)
 {
 	system->loaded = false;
+#ifdef AUTOLOAD_PLUGINS
+	system->autoload = true;
+#else
+	system->autoload = false;
+#endif
 	list_init(&system->plugins);
 	list_init(&system->removed_plugins);
 }
 
-void
+static void
 libinput_plugin_system_load_internal_plugins(struct libinput *libinput,
 					     struct libinput_plugin_system *system)
 {
@@ -380,9 +502,7 @@ libinput_plugin_system_load_internal_plugins(struct libinput *libinput,
 
 	system->loaded = true;
 
-	/* FIXME: this should really be one of the first in the sequence
-	 * so plugins don't have to take care of this? */
-#if HAVE_MTDEV
+#ifdef HAVE_MTDEV
 	libinput_mtdev_plugin(libinput);
 #endif
 	libinput_tablet_plugin_forced_tool(libinput);
@@ -390,6 +510,7 @@ libinput_plugin_system_load_internal_plugins(struct libinput *libinput,
 	libinput_tablet_plugin_proximity_timer(libinput);
 	libinput_tablet_plugin_eraser_button(libinput);
 	libinput_debounce_plugin(libinput);
+	libinput_mouse_plugin_wheel_lowres(libinput);
 	libinput_mouse_plugin_wheel(libinput);
 
 	/* Our own event dispatch is implemented as mini-plugin,
@@ -398,6 +519,7 @@ libinput_plugin_system_load_internal_plugins(struct libinput *libinput,
 	 * actually connected to anything yet */
 	libinput_evdev_dispatch_plugin(libinput);
 }
+
 void
 libinput_plugin_system_destroy(struct libinput_plugin_system *system)
 {
@@ -433,6 +555,21 @@ libinput_plugin_system_notify_device_added(struct libinput_plugin_system *system
 		libinput_plugin_notify_device_added(plugin, device);
 	}
 	libinput_plugin_system_drop_unregistered_plugins(system);
+
+	/* Now that we added all our devices in all our plugins, notify
+	 * all plugins about disabled features. Some plugins may get
+	 * this notification twice but they should be able to handle that
+	 * case.
+	 */
+	enum libinput_feature feature = _LIBINPUT_N_FEATURES;
+
+	while (--feature > 0) {
+		if (bitmask_bit_is_set(device->disabled_features, feature)) {
+			libinput_plugin_system_notify_device_feature_disabled(system,
+									      device,
+									      feature);
+		}
+	}
 }
 
 void
@@ -470,6 +607,22 @@ libinput_plugin_system_notify_tablet_tool_configured(
 	libinput_plugin_system_drop_unregistered_plugins(system);
 }
 
+void
+libinput_plugin_system_notify_device_feature_disabled(
+	struct libinput_plugin_system *system,
+	struct libinput_device *device,
+	enum libinput_feature feature)
+{
+	libinput_device_disable_feature(device, feature);
+
+	struct libinput_plugin *plugin;
+	list_for_each_safe(plugin, &system->plugins, link) {
+		if (plugin->interface->feature_disabled)
+			plugin->interface->feature_disabled(plugin, device, feature);
+	}
+	libinput_plugin_system_drop_unregistered_plugins(system);
+}
+
 static void
 libinput_plugin_process_frame(struct libinput_plugin *plugin,
 			      struct libinput_device *device,
@@ -504,7 +657,7 @@ print_frame(struct libinput *libinput, struct evdev_frame *frame, const char *pr
 {
 	static uint32_t offset = 0;
 	static uint32_t last_time = 0;
-	uint32_t time = evdev_frame_get_time(frame) / 1000;
+	uint32_t time = usec_to_millis(evdev_frame_get_time(frame));
 
 	if (offset == 0) {
 		offset = time;
@@ -517,9 +670,17 @@ print_frame(struct libinput *libinput, struct evdev_frame *frame, const char *pr
 	struct evdev_event *events = evdev_frame_get_events(frame, &nevents);
 
 	for (size_t i = 0; i < nevents; i++) {
-		struct evdev_event *e = &events[i];
+		struct evdev_event e = events[i];
+		enum evdev_usage usage = evdev_usage_enum(e.usage);
 
-		switch (evdev_usage_enum(e->usage)) {
+		if ((usage > EVDEV_KEY_ESC && usage < EVDEV_KEY_CAPSLOCK) ||
+		    (usage >= EVDEV_KEY_KP7 && usage <= EVDEV_KEY_KPDOT)) {
+			e.usage = evdev_usage_from(EVDEV_KEY_A);
+		} else if (usage == EVDEV_MSC_SCAN) {
+			e.value = 30; /* KEY_A scancode */
+		}
+
+		switch (evdev_usage_enum(e.usage)) {
 		case EVDEV_SYN_REPORT:
 			log_debug(
 				libinput,
@@ -537,9 +698,9 @@ print_frame(struct libinput *libinput, struct evdev_frame *frame, const char *pr
 				  prefix,
 				  time / 1000,
 				  time % 1000,
-				  evdev_event_get_type_name(e),
-				  evdev_event_get_code_name(e),
-				  e->value);
+				  evdev_event_get_type_name(&e),
+				  evdev_event_get_code_name(&e),
+				  e.value);
 			break;
 		default:
 			log_debug(libinput,
@@ -547,14 +708,35 @@ print_frame(struct libinput *libinput, struct evdev_frame *frame, const char *pr
 				  prefix,
 				  time / 1000,
 				  time % 1000,
-				  evdev_event_get_type_name(e),
-				  evdev_event_get_code_name(e),
-				  e->value);
+				  evdev_event_get_type_name(&e),
+				  evdev_event_get_code_name(&e),
+				  e.value);
 			break;
 		}
 	}
 }
 
+static bool
+plugin_has_mask(struct libinput_plugin *plugin, struct evdev_frame *frame)
+{
+	/* A plugin without a mask wants all events */
+	if (plugin->mask == NULL)
+		return true;
+
+	size_t nevents;
+	struct evdev_event *events = evdev_frame_get_events(frame, &nevents);
+
+	/* nevents - 1 because we don't check the SYN_REPORT */
+	for (size_t i = 0; i < nevents - 1; i++) {
+		struct evdev_event *e = &events[i];
+
+		if (evdev_mask_is_set(plugin->mask, e->usage))
+			return true;
+	}
+
+	return false;
+}
+
 static void
 plugin_system_notify_evdev_frame(struct libinput_plugin_system *system,
 				 struct libinput_device *device,
@@ -574,7 +756,7 @@ plugin_system_notify_evdev_frame(struct libinput_plugin_system *system,
 	struct list queued_events = LIST_INIT(queued_events);
 	list_take_insert(&queued_events, our_event, link);
 
-	uint64_t frame_time = evdev_frame_get_time(frame);
+	usec_t frame_time = evdev_frame_get_time(frame);
 
 	bool delay = !!sender_plugin;
 
@@ -602,20 +784,22 @@ plugin_system_notify_evdev_frame(struct libinput_plugin_system *system,
 		list_for_each_safe(event, &queued_events, link) {
 			struct list next = LIST_INIT(next);
 
-			if (evdev_frame_get_time(event->frame) == 0)
+			if (usec_is_zero(evdev_frame_get_time(event->frame)))
 				evdev_frame_set_time(event->frame, frame_time);
 
 			if (!bitmask_bit_is_set(device->plugin_frame_callbacks,
-						plugin->index)) {
+						plugin->index) ||
+			    !plugin_has_mask(plugin, event->frame)) {
 				list_remove(&event->link);
 				list_append(&next_events, &event->link);
 				continue;
 			}
+
 #ifdef EVENT_DEBUGGING
-			_autofree_ char *prefix =
-				strdup_printf("plugin %-25s - %s:",
-					      plugin->name,
-					      libinput_device_get_name(event->device));
+			_autofree_ char *prefix = strdup_printf(
+				"%7s: plugin %-22s - ",
+				libinput_device_get_sysname(event->device),
+				plugin->name);
 			print_frame(libinput_device_get_context(device),
 				    event->frame,
 				    prefix);
@@ -664,7 +848,7 @@ libinput_plugin_system_notify_evdev_frame(struct libinput_plugin_system *system,
 }
 
 static void
-plugin_timer_func(uint64_t now, void *data)
+plugin_timer_func(usec_t now, void *data)
 {
 	struct libinput_plugin_timer *timer = data;
 	struct libinput_plugin *plugin = timer->plugin;
@@ -698,7 +882,7 @@ struct libinput_plugin_timer *
 libinput_plugin_timer_new(struct libinput_plugin *plugin,
 			  const char *name,
 			  void (*func)(struct libinput_plugin *plugin,
-				       uint64_t now,
+				       usec_t now,
 				       void *data),
 			  void *data)
 {
@@ -758,7 +942,7 @@ libinput_plugin_timer_unref(struct libinput_plugin_timer *timer)
 
 /* Set timer expire time, in absolute us CLOCK_MONOTONIC */
 void
-libinput_plugin_timer_set(struct libinput_plugin_timer *timer, uint64_t expire)
+libinput_plugin_timer_set(struct libinput_plugin_timer *timer, usec_t expire)
 {
 	libinput_timer_set(&timer->timer, expire);
 }