evdev: store the SYN_REPORT value in the frame

If the SYN_REPORT has a value of nonzero we need to keep that value in
the frame - our upper layers rely on this to detect repeat frames.

Closes #1261

Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1449>

.clang-format

@@ -0,0 +1,82 @@
+AlignAfterOpenBracket: Align
+# This option we want but it's frequently broken and causes bad
+# misalignment. The canary is wheel_click_count_parser, if that works
+# we can actually enable it.
+# AlignArrayOfStructures: Left
+AlignConsecutiveAssignments: false
+AlignConsecutiveDeclarations: false
+AlignConsecutiveMacros: true
+AlignConsecutiveShortCaseStatements:
+  Enabled: true
+  AcrossEmptyLines: false
+  AcrossComments: true
+  AlignCaseColons: false
+AlignEscapedNewlines: Right
+AlignOperands: Align
+AlignTrailingComments: true
+AllowAllArgumentsOnNextLine: false
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: false
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakBeforeMultilineStrings: true
+BinPackArguments: false
+BinPackParameters: OnePerLine
+BraceWrapping:
+  AfterFunction: true
+BreakAfterReturnType: All
+BreakBeforeBraces: Custom
+BreakStringLiterals: false
+ColumnLimit: 88
+ContinuationIndentWidth: 8
+Cpp11BracedListStyle: false
+IncludeBlocks: Regroup
+IncludeCategories:
+  - Regex:           '^(<|")config\.h(>|")'
+    Priority:        0
+    SortPriority:    0
+  - Regex:           '^<.*'
+    Priority:        1
+    SortPriority:    0
+  - Regex:           '^"util-.*'
+    Priority:        2
+    SortPriority:    0
+  - Regex:           '.*'
+    Priority:        3
+    SortPriority:    0
+IndentCaseLabels: false
+IndentGotoLabels: false
+IndentWidth: 8
+MaxEmptyLinesToKeep: 1
+PointerAlignment: Right
+ReflowComments: true
+RemoveEmptyLinesInUnwrappedLines: true
+RemoveParentheses: MultipleParentheses
+RemoveSemicolon: true
+SkipMacroDefinitionBody: true
+SortIncludes: true
+SpaceAfterCStyleCast: false
+SpaceAfterLogicalNot: false
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCaseColon: false
+SpaceBeforeParens: ControlStatementsExceptControlMacros
+SpacesInContainerLiterals: true
+SpacesInParens: Custom
+TabWidth: 8
+UseTab: ForContinuationAndIndentation
+
+ForEachMacros:
+  - ARRAY_FOR_EACH
+  - list_for_each
+  - list_for_each_safe
+  - tp_for_each_touch
+  - range_for_each
+  - litest_log_group
+  - litest_with_logcapture
+  - litest_with_parameters
+  - litest_with_event_frame
+  - udev_list_entry_foreach
+# END_TEST is defined as something that enforces a line break
+Macros: [ "CASE_RETURN_STRING(s)=case s: return s", "START_TEST(s)=static void s(void)", "END_TEST=enum foo;"]

.clang-format-ignore

@@ -0,0 +1 @@
+include/**/*

.clang-tidy

@@ -0,0 +1,7 @@
+# optin.core.unix.Malloc: disabled so we can use __attribute__((cleanup)) without leak complaints
+# optin.core.EnumCastOutOfRange: disabled because we use a lot of "wrong" enum values for testing
+#                                and internally and don't want those values leak into the public API
+Checks: >
+  -clang-analyzer-unix.Malloc,
+  -clang-analyzer-optin.core.EnumCastOutOfRange
+WarningsAsErrors: '*'

.clang-tidy-ignore

@@ -0,0 +1 @@
+include/*

.editorconfig

@@ -0,0 +1,25 @@
+# https://editorconfig.org/
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.{c,h}]
+indent_size = 8
+indent_style = tab
+
+[*.py]
+indent_size = 4
+indent_style = space
+
+[{meson.build,meson_options.txt}]
+indent_size = 8
+indent_style = tab
+
+[*.sym]
+indent_size = 8
+indent_style = tab

.git-blame-ignore-revs

@@ -0,0 +1,21 @@
+# This file contains revisions to be ignored by git blame.
+# These revisions are expected to be formatting-only changes.
+#
+# Calling `git blame --ignore-revs-file .git-blame-ignore-revs` will
+# tell git blame to ignore changes made by these revisions when assigning
+# assigning blame, as if the change never happened.
+#
+# You can enable this as a default for your local repository by running
+# `git config blame.ignoreRevsFile .git-blame-ignore-revs`
+# Important: if you do this, then switch to a branch without this file,
+# `git blame` will fail with an error.
+#
+
+# Run clang-format over the code
+2a1095924b0be60f822bc0ff20d567e209a9db73
+
+# Add trailing commas to prevent clang-format oddities
+aebf3cd4915adc576cf055926caa621e098ec32b
+
+# Fix some inconsistent whitespace.
+60abf1575560cb8e2220ae48a67e7f74b5dc70dd

.gitlab-ci/ci.template

@@ -0,0 +1,803 @@
+# vim: set expandtab shiftwidth=2 tabstop=8 textwidth=0 filetype=yaml:
+
+{# You're looking at the template here, so you can ignore the below
+   warning. This is the right file to edit #}
+########################################
+#                                      #
+# THIS FILE IS GENERATED, DO NOT EDIT  #
+#                                      #
+########################################
+
+# To change the gitlab CI, edit .gitlab-ci/ci.template and/or .gitlab-ci/config.yaml
+# and run ci-fairy generate-template. For details, see
+# https://freedesktop.pages.freedesktop.org/ci-templates/ci-fairy.html#templating-gitlab-ci-yml
+
+# This is a bit complicated for two reasons:
+# - we really want to run dnf/apt/... only once, updating on the test runner for
+#   each job takes forever. So we create a container image for each distribution
+#   tested, then run the tests on this container image.
+#
+#   This is handled by the ci-templates, ensuring containers are only rebuilt
+#   when the TAG changes.
+#
+# - GitLab only allows one script: set per job but we have a bunch of commands
+#   we need to re-run for each build (meson && ninja && etc). YAML cannot merge
+#   arrays so we're screwed.
+#
+#   So instead we use a default_build template and override everything with
+#   variables. The only two variables that matter:
+#     MESON_ARGS=-Denable-something=true
+#     NINJA_ARGS=dist ... to run 'ninja -C builddir dist'
+#   Note that you cannot use scripts: in any target if you expect default_build
+#   to work.
+#
+#
+# All jobs must follow the naming scheme of
+# <distribution>:<version>@activity:
+#  e.g. fedora:31@build-default
+
+.templates_sha: &template_sha c6aeb16f86e32525fa630fb99c66c4f3e62fc3cb
+
+include:
+  - project: 'freedesktop/ci-templates'
+    ref: *template_sha
+    file:
+      - '/templates/ci-fairy.yml'
+  {% for distro in distributions|sort(attribute="name") %}
+      # {{ distro.name.capitalize() }} container builder template
+      - '/templates/{{distro.name}}.yml'
+  {% endfor %}
+
+workflow:
+  rules:
+    # do not duplicate pipelines on merge pipelines
+    - if: $CI_COMMIT_BRANCH && $CI_OPEN_MERGE_REQUESTS && $CI_PIPELINE_SOURCE == "push"
+      when: never
+    # merge pipeline
+    - if: &is-merge-attempt $GITLAB_USER_LOGIN == "marge-bot" && $CI_PIPELINE_SOURCE == "merge_request_event"
+      variables:
+        FDO_RUNNER_JOB_PRIORITY_TAG_X86_64: priority:high
+        FDO_RUNNER_JOB_PRIORITY_TAG_X86_64_KVM: priority:high-kvm
+        FDO_RUNNER_JOB_PRIORITY_TAG_AARCH64: priority:high-aarch64
+    # post-merge pipeline
+    - if: &is-post-merge $GITLAB_USER_LOGIN == "marge-bot" && $CI_PIPELINE_SOURCE == "push"
+      variables:
+        FDO_RUNNER_JOB_PRIORITY_TAG_X86_64: priority:high
+        FDO_RUNNER_JOB_PRIORITY_TAG_X86_64_KVM: priority:high-kvm
+        FDO_RUNNER_JOB_PRIORITY_TAG_AARCH64: priority:high-aarch64
+    # Pre-merge pipeline
+    - if: &is-pre-merge $CI_PIPELINE_SOURCE == "merge_request_event"
+    # Push to a branch on a fork
+    - if: $CI_COMMIT_BRANCH
+
+stages:
+  - sanity check     # CI/commit checks
+  - prep             # prep work like rebuilding the container images if there is a change
+  - build            # for actually building and testing things in a container
+  - test-suite       # for running the test suite in a VM
+  - test-suite-no-libwacom # for running the test suite in a VM (libwacom disabled)
+  - valgrind         # for running the test suite under valgrind in a VM
+  - distro           # distribs test
+  - deploy           # trigger wayland's website generation
+  - container_clean  # clean up unused container images (scheduled jobs only)
+
+variables:
+  ###############################################################################
+  # This is the list of packages required to build libinput with the default    #
+  # configuration.                                                              #
+  #                                                                             #
+  # Run dnf install/apt-get install/.. with the list of packages for your       #
+  # distribution                                                                #
+  #                                                                             #
+  # See the documentation here:                                                 #
+  # https://wayland.freedesktop.org/libinput/doc/latest/building.html           #
+  ###############################################################################
+{% for distro in distributions %}
+  {{"%-17s" | format(distro.name.upper() + '_PACKAGES:')}} '{{ distro.packages|join(' ')}}'
+{% endfor %}
+  ############################ end of package lists #############################
+
+  # these tags should be updated each time the list of packages is updated
+  # changing these will force rebuilding the associated image
+  # Note: these tags have no meaning and are not tied to a particular
+  # libinput version
+{% for distro in distributions %}
+  {{"%-13s"| format(distro.name.upper() + '_TAG:')}}'{{distro.tag}}'
+{% endfor %}
+
+  FDO_UPSTREAM_REPO: libinput/libinput
+
+  MESON_BUILDDIR: "build dir"
+  NINJA_ARGS: ''
+  MESON_ARGS: ''
+  MESON_TEST_ARGS: '--no-suite=hardware'
+
+  # udev isn't available/working properly in the containers
+  UDEV_NOT_AVAILABLE: 1
+  GIT_DEPTH: 1
+
+  # Default priority for non-merge pipelines
+  FDO_RUNNER_JOB_PRIORITY_TAG_X86_64: ""  # Empty tags are ignored by gitlab
+  FDO_RUNNER_JOB_PRIORITY_TAG_X86_64_KVM: kvm
+  FDO_RUNNER_JOB_PRIORITY_TAG_AARCH64: aarch64
+
+.policy:
+  retry:
+    max: 2
+    when:
+      - runner_system_failure
+      - stuck_or_timeout_failure
+  # cancel run when a newer version is pushed to the branch
+  interruptible: true
+  dependencies: []
+
+.policy-retry-on-failure:
+  retry:
+    max: 1
+    when:
+      - runner_system_failure
+      - stuck_or_timeout_failure
+  # cancel run when a newer version is pushed to the branch
+  interruptible: true
+  dependencies: []
+
+.default_artifacts:
+  artifacts:
+    name: "meson-logs-$CI_JOB_NAME"
+    when: always
+    expire_in: 1 week
+    paths:
+      - $MESON_BUILDDIR/meson-logs
+      - $MESON_BUILDDIR/valgrind.*.log
+    reports:
+      junit: $MESON_BUILDDIR/*junit*.xml
+
+.fdo-runner-tags:
+  tags:
+    - $FDO_RUNNER_JOB_PRIORITY_TAG_X86_64
+
+
+#################################################################
+#                                                               #
+#                     sanity check stage                        #
+#                                                               #
+#################################################################
+
+fail-if-fork-is-not-public:
+  extends:
+    - .fdo-runner-tags
+  stage: sanity check
+  script:
+    - |
+      if [ $CI_PROJECT_VISIBILITY != "public" ]; then
+           echo "*************************************************************************************"
+           echo "Project visibility must be set to 'public'"
+           echo "Change this in $CI_PROJECT_URL/edit under 'Visibility, project features, permissions'"
+           echo "*************************************************************************************"
+           exit 1
+      fi
+  except:
+    - main@libinput/libinput
+
+# Re-generate the CI script and make sure it's the one currently checked in
+# If this job fails, re-generate the gitlab-ci.yml script, see
+# $SRCDIR/.gitlab-ci/generate-gitlab-ci.py
+#
+check-ci-script:
+  extends:
+    - .fdo.ci-fairy
+    - .fdo-runner-tags
+  stage: sanity check
+  script:
+    - ci-fairy generate-template --verify && exit 0 || true
+    - >
+      printf "%s\n" \
+        "Committed gitlab-ci.yml differs from generated gitlab-ci.yml. Please verify" \
+        "https://wayland.freedesktop.org/libinput/doc/latest/contributing.html"
+    - exit 1
+
+#
+# Verify that commit messages are as expected, etc.
+#
+
+check-commit:
+  extends:
+    - .fdo.ci-fairy
+    - .fdo-runner-tags
+  stage: sanity check
+  script:
+    - ci-fairy -vv check-commits --junit-xml=results.xml && exit 0 || true
+    - >
+      printf "%s\n" \
+        "Error checking commit format. Please verify" \
+        "https://wayland.freedesktop.org/libinput/doc/latest/contributing.html"
+    - exit 1
+  except:
+    - main@libinput/libinput
+  variables:
+    GIT_DEPTH: 100
+  artifacts:
+    reports:
+      junit: results.xml
+
+
+#
+# Check for trailing whitespaces
+#
+
+check-whitespace:
+  extends:
+    - .fdo.ci-fairy
+    - .fdo-runner-tags
+  stage: sanity check
+  script:
+    - .gitlab-ci/whitespace-check.py $(git ls-files)
+
+#
+# pre-commit hooks
+#
+
+pre-commit-hooks:
+  extends:
+    - .fdo.ci-fairy
+    - .fdo-runner-tags
+  stage: sanity check
+  script:
+    - python3 -m venv venv
+    - source venv/bin/activate
+    - pip3 install pre-commit
+    - pre-commit run --all-files
+    - git diff --exit-code || (echo "ERROR - Code style errors found, please fix" && false)
+
+#################################################################
+#                                                               #
+#                          prep stage                           #
+#                                                               #
+#################################################################
+
+{% for distro in distributions %}
+{% for version in distro.versions %}
+{{distro.name}}:{{version}}@container-prep:
+  extends:
+{% if distro.qemu_based %}
+    - .fdo.qemu-build@{{distro.name}}
+{% else %}
+    - .fdo.container-build@{{distro.name}}
+{% endif %}
+    - .policy
+    - .fdo-runner-tags
+{% if distro.qemu_based %}
+  tags:
+    - $FDO_RUNNER_JOB_PRIORITY_TAG_X86_64_KVM
+{% endif %}
+  stage: prep
+  variables:
+    GIT_STRATEGY: none
+    FDO_DISTRIBUTION_VERSION: '{{version}}'
+    FDO_DISTRIBUTION_PACKAGES: ${{distro.name.upper()}}_PACKAGES
+    FDO_DISTRIBUTION_TAG: ${{distro.name.upper()}}_TAG
+
+{% endfor %}
+{% endfor %}
+
+
+#################################################################
+#                                                               #
+#                   container clean stage                       #
+#                 run during the clean stage                    #
+#                                                               #
+#################################################################
+
+#
+# This stage will look for the container images we currently have in
+# the registry and will remove any that are not tagged with the provided
+# $container_image:$tag
+#
+.container-clean:
+  extends:
+    - .policy
+    - .fdo.ci-fairy
+    - .fdo-runner-tags
+  stage: container_clean
+  script:
+    # Go to your Profile, Settings, Access Tokens
+    # Create a personal token with 'api' scope, copy the value.
+    # Go to CI/CD, Schedules, schedule a new monthly job (or edit the existing one)
+    # Define a variable of type File named AUTHFILE. Content is that token
+    # value.
+    - ci-fairy -v --authfile $AUTHFILE delete-image
+            --repository $FDO_DISTRIBUTION_NAME/$FDO_DISTRIBUTION_VERSION
+            --exclude-tag $FDO_DISTRIBUTION_TAG
+  allow_failure: true
+  only:
+    - schedules
+
+{% for distro in distributions %}
+{% for version in distro.versions %}
+{{distro.name}}:{{version}}@container-clean:
+  extends:
+    - .policy
+    - .container-clean
+  variables:
+    GIT_STRATEGY: none
+    CURRENT_CONTAINER_IMAGE: $CI_REGISTRY_IMAGE/{{distro.name}}/$FDO_DISTRIBUTION_VERSION:$FDO_DISTRIBUTION_TAG
+    FDO_DISTRIBUTION_VERSION: '{{version}}'
+    FDO_DISTRIBUTION_TAG: ${{distro.name.upper()}}_TAG
+
+{% endfor %}
+{% endfor %}
+
+#################################################################
+#                                                               #
+#                       build stage                             #
+#                                                               #
+#################################################################
+
+.build@template:
+  extends:
+    - .policy
+    - .default_artifacts
+    - .fdo-runner-tags
+  stage: build
+  script:
+    - .gitlab-ci/meson-build.sh
+
+
+# Run meson and meson test in the container image through qemu
+.build-in-vng@template:
+  extends:
+    - .policy
+    - .default_artifacts
+  tags:
+    - $FDO_RUNNER_JOB_PRIORITY_TAG_X86_64_KVM
+  variables:
+    MESON_BUILDDIR: build_dir
+    VNG_KERNEL: {{ vng.kernel }}
+  script:
+    # first build in the host container
+    - .gitlab-ci/meson-build.sh --skip-test
+
+    - mkdir -p $MESON_BUILDDIR
+    - curl -LO $VNG_KERNEL
+
+    - export -p > .vngenv
+
+    # runs the test suite only
+    - |
+      vng --run ./bzImage \
+          --user root \
+          --overlay-rwdir=$HOME \
+          --append HOME=$HOME \
+          --overlay-rwdir=$(pwd) \
+          --rwdir=$MESON_BUILDDIR \
+          --exec "source $PWD/.vngenv; rm $PWD/.vngenv; .gitlab-ci/meson-build.sh --skip-setup --skip-build --run-test"
+
+#
+# Fedora
+#
+
+.check_tainted: &check_tainted |
+  # make sure the kernel is not tainted
+  if [[ "$(ssh localhost -p 5555 cat /proc/sys/kernel/tainted)" -gt 0 ]];
+  then
+    echo tainted kernel ;
+    exit 1 ;
+  fi
+
+# Run meson and meson test in the qemu image
+.build-in-qemu@template:
+  extends:
+    - .policy
+  tags:
+    - $FDO_RUNNER_JOB_PRIORITY_TAG_X86_64_KVM
+  variables:
+    MESON_BUILDDIR: build_dir
+  script:
+    # start our vm, no args required
+    - /app/vmctl start || (echo "Error - Failed to start the VM." && exit 1)
+
+    - *check_tainted
+
+    - "scp -r $PWD vm:"
+    - echo "CI_JOB_ID=\"$CI_JOB_ID\"" > sshenv
+    - echo "CI_JOB_NAME=\"$CI_JOB_NAME\"" >> sshenv
+    - echo "MESON_ARGS=\"$MESON_ARGS\"" >> sshenv
+    - echo "MESON_BUILDDIR=\"$MESON_BUILDDIR\"" >> sshenv
+    - echo "MESON_TEST_ARGS=\"$MESON_TEST_ARGS\"" >> sshenv
+    - echo "NINJA_ARGS=\"$NINJA_ARGS\"" >> sshenv
+    - "scp sshenv vm:~/$CI_PROJECT_NAME/.meson_environment"
+    - /app/vmctl exec "cd $CI_PROJECT_NAME ; .gitlab-ci/meson-build.sh" && touch .success || true
+    # no matter the results of the tests, we want to fetch the logs
+    - scp -r vm:$CI_PROJECT_NAME/$MESON_BUILDDIR .
+
+    - *check_tainted
+
+    - /app/vmctl stop
+
+    - if [[ ! -e .success ]] ;
+      then
+        exit 1 ;
+      fi
+  artifacts:
+    name: "qemu-meson-logs-$CI_JOB_NAME"
+    when: always
+    expire_in: 1 week
+    paths:
+      - $MESON_BUILDDIR/meson-logs
+      - console.out
+    reports:
+      junit: $MESON_BUILDDIR/*junit*.xml
+
+
+# Run in a test suite. Special variables:
+# - SUITES: the meson test suites to run, or
+# - SUITE_NAMES: all elements will be expanded to libinput-test-suite-$value
+# Set one or the other, not both.
+.test-suite-vm:
+  extends:
+    - .build-in-vng@template
+  stage: test-suite
+  variables:
+    # remove the global --no-suite=hardware
+    MESON_TEST_ARGS: ''
+    LITEST_JOBS: 4
+  before_script:
+    - if ! [[ -z $SUITE_NAMES ]]; then SUITES=$(echo $SUITE_NAMES | sed 's/\([^ ]*\)/libinput-test-suite-\1/g'); fi
+    - echo "Testing $SUITES"
+    - export MESON_TEST_ARGS="$MESON_TEST_ARGS $SUITES"
+
+
+{# qemu tests are only done for the latest version of any distribution #}
+{% for distro in distributions if distro.use_for_qemu_tests %}
+{% set version = "{}".format(distro.versions|last()) %}
+.{{distro.name}}:{{version}}@test-suite-vm:
+  extends:
+    - .fdo.distribution-image@{{distro.name}}
+    - .test-suite-vm
+  variables:
+    FDO_DISTRIBUTION_VERSION: {{version}}
+    FDO_DISTRIBUTION_TAG: ${{distro.name.upper()}}_TAG
+  needs:
+    - "{{distro.name}}:{{version}}@container-prep"
+
+
+{% for suite in test_suites %}
+vm-{{suite.name}}:
+  extends:
+    - .{{distro.name}}:{{version}}@test-suite-vm
+  variables:
+    SUITE_NAMES: '{{suite.suites|join(' ')}}'
+
+vm-{{suite.name}}-no-libwacom:
+  extends:
+    - vm-{{suite.name}}
+  stage: test-suite-no-libwacom
+  variables:
+    MESON_ARGS: '-Dlibwacom=false'
+
+{% endfor %}
+
+{% for suite in test_suites %}
+vm-valgrind-{{suite.name}}:
+  stage: valgrind
+  extends:
+    - vm-{{suite.name}}
+    - .policy-retry-on-failure
+  variables:
+    MESON_TEST_ARGS: '--setup=valgrind'
+    LITEST_JOBS: 0
+  retry:
+    max: 2
+  rules:
+    - 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 %}
+{% set version = "{}".format(distro.versions|last()) %}
+.{{distro.name}}-build@template:
+  extends:
+    - .fdo.distribution-image@{{distro.name}}
+    - .build@template
+  variables:
+    FDO_DISTRIBUTION_VERSION: '{{version}}'
+    FDO_DISTRIBUTION_TAG: ${{distro.name.upper()}}_TAG
+  needs:
+    - "{{distro.name}}:{{version}}@container-prep"
+
+default-build-release@{{distro.name}}:{{version}}:
+  stage: distro
+  extends:
+    - .{{distro.name}}-build@template
+  variables:
+    MESON_ARGS: "-Dbuildtype=release"
+    CFLAGS: "-Werror"
+
+clang-tidy@{{distro.name}}:{{version}}:
+  extends:
+    - .{{distro.name}}-build@template
+  variables:
+    NINJA_ARGS: ''
+    MESON_TEST_ARGS: ''
+    CC: 'clang'
+  script:
+    - .gitlab-ci/meson-build.sh
+    - ninja -C "$MESON_BUILDDIR" clang-tidy
+
+# Below jobs are build option combinations. We only
+# run them on one image, they shouldn't fail on one distro
+# when they succeed on another.
+
+build-no-libwacom@{{distro.name}}:{{version}}:
+  extends:
+    - .{{distro.name}}-build@template
+  variables:
+    MESON_ARGS: "-Dlibwacom=false"
+
+build-no-libwacom-nodeps@{{distro.name}}:{{version}}:
+  extends:
+    - .{{distro.name}}-build@template
+  variables:
+    MESON_ARGS: "-Dlibwacom=false"
+  before_script:
+    - dnf remove -y libwacom libwacom-devel
+
+build-no-mtdev@{{distro.name}}:{{version}}:
+  extends:
+    - .{{distro.name}}-build@template
+  variables:
+    MESON_ARGS: "-Dmtdev=false"
+
+build-no-mtdev-nodeps@{{distro.name}}:{{version}}:
+  extends:
+    - .{{distro.name}}-build@template
+  variables:
+    MESON_ARGS: "-Dmtdev=false"
+  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
+  variables:
+    MESON_ARGS: "-Ddocumentation=true"
+
+build-no-docs-nodeps@{{distro.name}}:{{version}}:
+  extends:
+    - .{{distro.name}}-build@template
+  variables:
+    MESON_ARGS: "-Ddocumentation=false"
+  before_script:
+    - dnf remove -y doxygen graphviz
+
+build-no-debuggui@{{distro.name}}:{{version}}:
+  extends:
+    - .{{distro.name}}-build@template
+  variables:
+    MESON_ARGS: "-Ddebug-gui=false"
+
+build-no-debuggui-nodeps@{{distro.name}}:{{version}}:
+  extends:
+    - .{{distro.name}}-build@template
+  variables:
+    MESON_ARGS: "-Ddebug-gui=false"
+  before_script:
+    - dnf remove -y gtk3-devel gtk4-devel
+
+build-no-tests@{{distro.name}}:{{version}}:
+  extends:
+    - .{{distro.name}}-build@template
+  variables:
+    MESON_ARGS: "-Dtests=false"
+
+build-no-tests-nodeps@{{distro.name}}:{{version}}:
+  extends:
+    - .{{distro.name}}-build@template
+  variables:
+    MESON_ARGS: "-Dtests=false"
+  before_script:
+    - dnf remove -y check-devel
+
+valgrind@{{distro.name}}:{{version}}:
+  extends:
+    - .{{distro.name}}-build@template
+  variables:
+    MESON_TEST_ARGS: '--suite=valgrind --no-suite=hardware --setup=valgrind'
+
+# Python checks, only run on Fedora
+
+usr-bin-env-python@{{distro.name}}:{{version}}:
+  extends:
+    - .{{distro.name}}-build@template
+  script:
+    - |
+      if git grep -l '^#!/usr/bin/python'; then
+        echo "Use '/usr/bin/env python3' in the above files";
+        /bin/false
+      fi
+
+# A job to check we're actually running all test suites in the CI
+check-test-suites:
+  extends:
+    - .{{distro.name}}-build@template
+  script:
+    - meson setup builddir
+    - meson introspect builddir --test | jq -r '.[].name' | grep 'libinput-test-suite' | sort > meson-testsuites
+    - |
+      cat <<EOF > ci-testsuites ;
+{% for suite in test_suites %}
+{% for name in suite.suites %}
+        libinput-test-suite-{{name}}
+{% endfor %}
+{% endfor %}
+      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)
+  only:
+    changes:
+      - "meson.build"
+      - ".gitlab-ci.yml"
+{% endfor %}
+
+#
+# coverity run
+#
+# This requires the COVERITY_SCAN_TOKEN. Log into scan.coverity.com and get
+# the token from the respective project settings page.
+# Schedule a pipeline and set a variable COVERITY_SCAN_TOKEN with the token value.
+# https://gitlab.freedesktop.org/$CI_PROJECT_PATH/-/pipeline_schedules
+# Email from coverity will be sent to the GITLAB_USER_EMAIL that scheduled the
+# job.
+#
+# Coverity ratelimits submissions and the coverity tools download is about
+# 700M, do not run this too often.
+#
+coverity:
+  extends:
+    - .fdo.distribution-image@debian
+    - .policy
+    - .fdo-runner-tags
+  stage: build
+  variables:
+    FDO_DISTRIBUTION_VERSION: 'stable'
+    FDO_DISTRIBUTION_TAG: $DEBIAN_TAG
+    # so git-describe works, or should work
+    GIT_DEPTH: 200
+  only:
+    variables:
+      - $COVERITY_SCAN_TOKEN
+  script:
+    - curl https://scan.coverity.com/download/linux64
+        -o /tmp/cov-analysis-linux64.tgz
+        --form project=$CI_PROJECT_NAME
+        --form token=$COVERITY_SCAN_TOKEN
+    - tar xfz /tmp/cov-analysis-linux64.tgz
+    # coverity has special build options in meson, make sure we enable those
+    - meson coverity-build -Ddocumentation=false -Dcoverity=true
+    - cov-analysis-linux64-*/bin/cov-build --dir cov-int  ninja -C coverity-build
+    - tar cfz cov-int.tar.gz cov-int
+    - curl https://scan.coverity.com/builds?project=$CI_PROJECT_NAME
+        --form token=$COVERITY_SCAN_TOKEN --form email=$GITLAB_USER_EMAIL
+        --form file=@cov-int.tar.gz --form version="$(git describe --tags)"
+        --form description="$(git describe --tags) / $CI_COMMIT_TITLE / $CI_COMMIT_REF_NAME:$CI_PIPELINE_ID"
+  artifacts:
+    name: "coverity-submit-data"
+    when: always
+    expire_in: 1 week
+    paths:
+      - cov-int.tar.gz
+  needs:
+    - "debian:stable@container-prep"
+
+#################################################################
+#                                                               #
+#                        distro stage                           #
+#                                                               #
+#################################################################
+
+{% for distro in distributions %}
+{% if not distro.qemu_based %}
+{% for version in distro.versions %}
+{{distro.name}}:{{version}}@default-build:
+  stage: distro
+  extends:
+    - .build@template
+    - .fdo.distribution-image@{{distro.name}}
+  variables:
+    FDO_DISTRIBUTION_VERSION: '{{version}}'
+    FDO_DISTRIBUTION_TAG: ${{distro.name.upper()}}_TAG
+    {# Where we have extra_variables defined, add them to the list #}
+    {% if distro.build is defined and distro.build.extra_variables is defined %}
+    {% for var in distro.build.extra_variables %}
+    {{var}}
+    {% endfor %}
+    {% endif %}
+  needs:
+    - "{{distro.name}}:{{version}}@container-prep"
+
+
+{% endfor %}
+{% else %}
+{% set version = "{}".format(distro.versions|last()) %}
+{{distro.name}}:{{version}}@default-build:
+  stage: distro
+  extends:
+    - .build-in-qemu@template
+    - .fdo.distribution-image@{{distro.name}}
+  variables:
+    FDO_DISTRIBUTION_VERSION: '{{version}}'
+    FDO_DISTRIBUTION_TAG: ${{distro.name.upper()}}_TAG
+    {# Where we have extra_variables defined, add them to the list #}
+    {% if distro.build is defined and distro.build.extra_variables is defined %}
+    {% for var in distro.build.extra_variables %}
+    {{var}}
+    {% endfor %}
+    {% endif %}
+  needs:
+    - "{{distro.name}}:{{version}}@container-prep"
+
+{% endif %}
+{% endfor %}
+
+#################################################################
+#                                                               #
+#                        deploy stage                           #
+#                                                               #
+#################################################################
+
+{% for distro in distributions if distro.name == "fedora" %}
+{% set version = "{}".format(distro.versions|last()) %}
+build rpm:
+  extends:
+    - .fdo.distribution-image@fedora
+    - .policy
+    - .fdo-runner-tags
+  stage: deploy
+  variables:
+    FDO_DISTRIBUTION_VERSION: '{{version}}'
+    FDO_DISTRIBUTION_TAG: $FEDORA_TAG
+  needs:
+    - "fedora:{{version}}@container-prep"
+  script:
+    - meson "$MESON_BUILDDIR"
+    - VERSION=$(meson introspect "$MESON_BUILDDIR" --projectinfo | jq -r .version)
+    - sed -e "s/@PIPELINEID@/${CI_PIPELINE_ID}/"
+          -e "s/@GITVERSION@/${CI_COMMIT_SHA}/"
+          -e "s/@VERSION@/${VERSION}/" .gitlab-ci/libinput.spec.in > libinput.spec
+    - git config --local user.name 'gitlab CI'
+    - git config --local user.email 'noreply@nowhere'
+    - git add libinput.spec && git commit -m 'Add libinput.spec for build testing' libinput.spec
+    - cd "$MESON_BUILDDIR"
+    - meson dist --no-test
+    - rpmbuild -ta meson-dist/libinput*.tar.xz
+{% endfor %}
+
+
+wayland-web:
+  stage: deploy
+  trigger: wayland/wayland.freedesktop.org
+  variables:
+    MESON_ARGS: '-Ddocumentation=true -Ddebug-gui=false -Dlibwacom=false -Dtests=false'
+    MESON_BUILDDIR: 'builddir'
+  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

@@ -0,0 +1,217 @@
+# This file contains the configuration for the gitlab ci.
+# See the .gitlab-ci/generate-gitlab-ci.py file for more info
+#
+
+# We're happy to rebuild all containers when one changes.
+.default_tag: &default_tag '2026-01-09.0'
+
+distributions:
+  - name: fedora
+    tag: *default_tag
+    versions:
+      - '42'
+      - '43'
+    use_for_custom_build_tests: true
+    use_for_qemu_tests: true
+    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           # for the Python black job, optional
+      - clang           # for the clang-tidy build, optional
+      - clang-tools-extra  # for clang-tidy, optional
+      - jq              # for the test suite check job, optional
+      - rpmdevtools     # for the rpm build job, optional
+      - valgrind        # for the valgrind run, optional
+      # below packages are for the qemu runs, so optional
+      - systemd-udev    # for the qemu run
+      - qemu-img
+      - qemu-system-x86-core
+      - qemu-system-aarch64-core
+      - jq
+      - python3-click
+      - python3-rich
+      - virtme-ng
+      - lua-devel
+  - name: debian
+    tag: *default_tag
+    versions:
+      - 'stable'
+    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            # for the coverity job
+      - lua5.4-dev
+  - name: ubuntu
+    tag: *default_tag
+    versions:
+      - '25.10'
+    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
+  - name: arch
+    tag: *default_tag
+    versions:
+      - 'rolling'
+    packages:
+      - git
+      - gcc
+      - pkgconfig
+      - meson
+      - check
+      - libsystemd
+      - libevdev
+      - python-pytest-xdist
+      - libwacom
+      - gtk4
+      - mtdev
+      - diffutils
+      - lua
+    build:
+      extra_variables:
+        - "MESON_ARGS: '-Ddocumentation=false'" # python-recommonmark is no longer in the repos
+  - name: alpine
+    tag: *default_tag
+    versions:
+      - 'latest'
+    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
+    build:
+      extra_variables:
+        - "MESON_ARGS: '-Ddocumentation=false' # alpine does not have python-recommonmark"
+        # We don't run the tests on alpine. The litest-selftest fails
+        # for any tcase_add_exit_test/tcase_add_test_raise_signal
+        # but someone more invested in musl will have to figure that out.
+        - "MESON_TEST_ARGS: '' # litest-selftest fails on musl"
+
+test_suites:
+  - name: touchpad
+    suites:
+      - touchpad
+  - name: touchpad_palm
+    suites:
+      - touchpad_palm
+  - name: touchpad_dwt
+    suites:
+      - touchpad_dwt
+  - name: tap
+    suites:
+      - touchpad_tap
+  - name: tap-drag
+    suites:
+      - touchpad_tap_drag
+  - name: tap-palm
+    suites:
+      - touchpad_tap_palm
+  - name: touchpad-buttons
+    suites:
+      - touchpad_buttons
+  - name: tablet
+    suites:
+      - tablet
+  - 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
+  - name: backends
+    suites:
+      - path
+      - udev
+  - name: misc
+    suites:
+      - log
+      - misc
+      - quirks
+      - device
+  - name: other devices
+    suites:
+      - keyboard
+      - pad
+      - switch
+      - trackball
+      - trackpoint
+      - totem
+      - touch
+  - 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

@@ -0,0 +1,149 @@
+# This specfile should not be used outside the CI
+# Its main purpose is to sound alarm if files disappear or are added that
+# weren't intended.
+
+%global udevdir %(pkg-config --variable=udevdir udev)
+
+%global pipelineid @PIPELINEID@
+%global gitversion @GITVERSION@
+
+Name:           libinput
+Version:        @VERSION@
+Release:        %{pipelineid}git%{gitversion}%{?dist}
+Summary:        Input device library
+
+License:        MIT
+URL:            http://www.freedesktop.org/wiki/Software/libinput/
+Source0:        %{name}-%{version}.tar.xz
+
+# No BuildRequires, we rely on the container setup to have
+# all the requires installed
+
+%description
+libinput is a library that handles input devices for display servers and other
+applications that need to directly deal with input devices.
+
+It provides device detection, device handling, input device event processing
+and abstraction so minimize the amount of custom input code the user of
+libinput need to provide the common set of functionality that users expect.
+
+
+%package        devel
+Summary:        Development files for %{name}
+Requires:       %{name}%{?_isa} = %{version}-%{release}
+
+%description    devel
+The %{name}-devel package contains libraries and header files for
+developing applications that use %{name}.
+
+%package        utils
+Summary:        Utilities and tools for debugging %{name}
+Requires:       %{name}%{?_isa} = %{version}-%{release}
+Requires:       python3-pyudev python3-libevdev
+
+%description    utils
+The %{name}-utils package contains tools to debug hardware and analyze
+%{name}.
+
+%package        test
+Summary:        libinput integration test suite
+Requires:       %{name}%{?_isa} = %{version}-%{release}
+
+%description    test
+The %{name}-test package contains the libinput test suite. It is not
+intended to be run by users.
+
+%prep
+%autosetup -S git -n %{name}-%{version}
+
+%build
+%meson -Dtests=true \
+       -Dinstall-tests=true \
+       -Dudev-dir=%{udevdir}
+%meson_build
+
+%install
+%meson_install
+
+%post
+%{?ldconfig}
+
+%ldconfig_postun
+
+
+%files
+%doc COPYING
+%dir %{_sysconfdir}/libinput
+%{_libdir}/libinput.so.*
+%{udevdir}/libinput-device-group
+%{udevdir}/libinput-fuzz-extract
+%{udevdir}/libinput-fuzz-to-zero
+%{udevdir}/rules.d/80-libinput-device-groups.rules
+%{udevdir}/rules.d/90-libinput-fuzz-override.rules
+%{_bindir}/libinput
+%dir %{_libexecdir}/libinput/
+%{_libexecdir}/libinput/libinput-debug-events
+%{_libexecdir}/libinput/libinput-list-devices
+%{_mandir}/man1/libinput.1*
+%{_datadir}/libinput/*.quirks
+%dir %{_datadir}/zsh
+%dir %{_datadir}/zsh/site-functions
+%{_datadir}/zsh/site-functions/*
+%{_mandir}/man1/libinput-list-devices.1*
+%{_mandir}/man1/libinput-debug-events.1*
+
+%files devel
+%{_includedir}/libinput.h
+%{_libdir}/libinput.so
+%{_libdir}/pkgconfig/libinput.pc
+
+%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
+%{_libexecdir}/libinput/libinput-measure-touchpad-tap
+%{_libexecdir}/libinput/libinput-measure-touchpad-pressure
+%{_libexecdir}/libinput/libinput-measure-touch-size
+%{_libexecdir}/libinput/libinput-measure-touchpad-size
+%{_libexecdir}/libinput/libinput-quirks
+%{_libexecdir}/libinput/libinput-record
+%{_libexecdir}/libinput/libinput-replay
+%{_libexecdir}/libinput/libinput-analyze
+%{_libexecdir}/libinput/libinput-analyze-buttons
+%{_libexecdir}/libinput/libinput-analyze-per-slot-delta
+%{_libexecdir}/libinput/libinput-analyze-recording
+%{_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*
+%{_mandir}/man1/libinput-measure-touchpad-tap.1*
+%{_mandir}/man1/libinput-measure-touch-size.1*
+%{_mandir}/man1/libinput-measure-touchpad-size.1*
+%{_mandir}/man1/libinput-measure-touchpad-pressure.1*
+%{_mandir}/man1/libinput-quirks.1*
+%{_mandir}/man1/libinput-quirks-list.1*
+%{_mandir}/man1/libinput-quirks-validate.1*
+%{_mandir}/man1/libinput-record.1*
+%{_mandir}/man1/libinput-replay.1*
+%{_mandir}/man1/libinput-analyze.1*
+%{_mandir}/man1/libinput-analyze-buttons.1*
+%{_mandir}/man1/libinput-analyze-per-slot-delta.1*
+%{_mandir}/man1/libinput-analyze-recording.1*
+%{_mandir}/man1/libinput-analyze-touch-down-state.1*
+
+%files test
+%{_libexecdir}/libinput/libinput-test
+%{_libexecdir}/libinput/libinput-test-suite
+%{_libexecdir}/libinput/libinput-test-utils
+%{_mandir}/man1/libinput-test.1*
+%{_mandir}/man1/libinput-test-suite.1*
+
+%changelog
+* Wed Jul 15 2020 Peter Hutterer <peter.hutterer@redhat.com>
+- Add basic spec file for package build testing

.gitlab-ci/meson-build.sh

@@ -0,0 +1,88 @@
+#!/usr/bin/env bash
+#
+# This script is sourced from here:
+# https://gitlab.freedesktop.org/whot/meson-helper
+#
+# SPDX-License-Identifier: MIT
+
+set -x
+if [[ -f .meson_environment ]]; then
+	. .meson_environment
+fi
+
+# If test args are set, we assume we want to run the tests
+MESON_RUN_TEST="$MESON_TEST_ARGS"
+
+while [[ $# -gt 0 ]]; do
+	case $1 in
+		--skip-setup)
+			shift
+			MESON_SKIP_SETUP="1"
+			;;
+		--skip-build)
+			shift
+			MESON_SKIP_BUILD="1"
+			;;
+		--skip-test)
+			shift
+			MESON_RUN_TEST=""
+			;;
+		--run-test)
+			shift
+			MESON_RUN_TEST="1"
+			;;
+		*)
+			echo "Unknow commandline argument $1"
+			exit 1
+			;;
+	esac
+done
+
+if [[ -z "$MESON_BUILDDIR" ]]; then
+	echo "\$MESON_BUILDDIR undefined."
+	exit 1
+fi
+
+# emulate a few gitlab variables to make it easier to
+# run and debug locally.
+if [[ -z "$CI_JOB_ID" ]] || [[ -z "$CI_JOB_NAME" ]]; then
+	echo "Missing \$CI_JOB_ID or \$CI_JOB_NAME".
+	CI_PROJECT_NAME=$(basename "$PWD")
+	CI_JOB_ID=$(date +%s)
+	CI_JOB_NAME="$CI_PROJECT_NAME-job-local"
+	echo "Simulating gitlab environment: "
+	echo " CI_JOB_ID=$CI_JOB_ID"
+	echo " CI_JOB_NAME=$CI_JOB_NAME"
+fi
+
+if [[ -n "$FDO_CI_CONCURRENT" ]]; then
+	jobcount="-j$FDO_CI_CONCURRENT"
+	export MESON_TESTTHREADS="$FDO_CI_CONCURRENT"
+fi
+
+echo "*************************************************"
+echo "builddir: $MESON_BUILDDIR"
+echo "meson args: $MESON_ARGS"
+echo "ninja args: $NINJA_ARGS"
+echo "meson test args: $MESON_TEST_ARGS"
+echo "job count: ${jobcount-0}"
+echo "*************************************************"
+
+set -e
+
+if [[ -z "$MESON_SKIP_SETUP" ]]; then
+	rm -rf "$MESON_BUILDDIR"
+	meson setup "$MESON_BUILDDIR" $MESON_ARGS
+fi
+meson configure "$MESON_BUILDDIR"
+
+if [[ -z "$MESON_SKIP_BUILD" ]]; then
+	if [[ -n "$NINJA_ARGS" ]]; then
+		ninja_args="--ninja-args $NINJA_ARGS"
+	fi
+	meson compile -v -C "$MESON_BUILDDIR" $jobcount $ninja_args
+fi
+
+if [[ -n "$MESON_RUN_TEST" ]]; then
+	meson test -C "$MESON_BUILDDIR" $MESON_TEST_ARGS --print-errorlogs
+fi

.gitlab-ci/scanbuild-wrapper.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+scan-build -v --status-bugs -plist-html "$@"

.gitlab-ci/ubuntu_install.sh

@@ -1,13 +0,0 @@
-#!/bin/bash
-
-set -e
-set -x
-
-export DEBIAN_FRONTEND=noninteractive
-
-apt-get install -y software-properties-common
-add-apt-repository universe
-apt-get update
-apt-get -y upgrade
-
-apt-get install -y $@

.gitlab-ci/whitespace-check.py

@@ -0,0 +1,119 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: MIT
+
+from pathlib import Path
+from dataclasses import dataclass
+
+import argparse
+import itertools
+import os
+import sys
+
+
+@dataclass
+class WhitespaceError:
+    message: str
+    lineno: int
+    nlines: int = 1
+    column: None | int = None
+    ncolumns: int = 1
+
+
+def test_duplicate_empty_lines(lines: list[str]) -> list[WhitespaceError]:
+    errors = []
+    for idx, (l1, l2) in enumerate(itertools.pairwise(lines)):
+        if not l1 and not l2:
+            errors.append(WhitespaceError("Duplicated empty lines", idx, nlines=2))
+    return errors
+
+
+def test_tab_after_space(lines: list[str]) -> list[WhitespaceError]:
+    errors = []
+    for idx, l in enumerate(lines):
+        index = l.find(" \t")
+        if index > -1:
+            errors.append(
+                WhitespaceError(
+                    "Tab after space", idx, nlines=index, column=index, ncolumns=2
+                )
+            )
+    return errors
+
+
+def test_trailing_whitespace(lines: list[str]) -> list[WhitespaceError]:
+    errors = []
+    for idx, l in enumerate(lines):
+        if l.rstrip() != l:
+            errors.append(WhitespaceError("Trailing whitespace", idx))
+    return errors
+
+
+def test_empty_line_between_braces(lines: list[str]) -> list[WhitespaceError]:
+    errors = []
+    for idx in range(len(lines) - 3):
+        l1 = lines[idx]
+        l2 = lines[idx + 1]
+        l3 = lines[idx + 2]
+        if l1.strip() == "}" and l3.strip() == "}" and l2.strip() == "":
+            errors.append(WhitespaceError("Empty line between closing braces", idx + 1))
+    return errors
+
+
+def main():
+    parser = argparse.ArgumentParser(description="Whitespace checker script")
+    parser.add_argument(
+        "files",
+        metavar="FILES",
+        type=Path,
+        nargs="+",
+        help="The files to check",
+    )
+
+    args = parser.parse_args()
+
+    have_errors: bool = False
+
+    if os.isatty(sys.stderr.fileno()):
+        red = "\x1b[0;31m"
+        reset = "\x1b[0m"
+    else:
+        red = ""
+        reset = ""
+
+    for file in args.files:
+        lines = [l.rstrip("\n") for l in file.open().readlines()]
+
+        errors = []
+        errors.extend(test_tab_after_space(lines))
+        errors.extend(test_trailing_whitespace(lines))
+        if any(file.name.endswith(suffix) for suffix in [".c", ".h"]):
+            if not file.parts[0] == "include":
+                errors.extend(test_duplicate_empty_lines(lines))
+                errors.extend(test_empty_line_between_braces(lines))
+
+        for e in errors:
+            print(f"{red}ERROR: {e.message} in {file}:{reset}", file=sys.stderr)
+            print(f"{'-' * 72}", file=sys.stderr)
+            lineno = max(0, e.lineno - 5)
+            for idx, l in enumerate(lines[lineno : lineno + 10]):
+                if e.lineno <= lineno + idx < e.lineno + e.nlines:
+                    prefix = "->"
+                    hl = red
+                    nohl = reset
+                else:
+                    prefix = "  "
+                    hl = ""
+                    nohl = ""
+                print(f"{hl}{lineno + idx:3d}: {prefix} {l.rstrip()}{nohl}")
+
+            print(f"{'-' * 72}", file=sys.stderr)
+
+        if errors:
+            have_errors = True
+
+    if have_errors:
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()

.gitlab/issue_templates/Bug.md

@@ -1,31 +0,0 @@
-## Summary
-
-<!--
-Summarize the bug encountered concisely. See
-https://wayland.freedesktop.org/libinput/doc/latest/reporting-bugs.html for
-detailed instructions to report bugs
--->
-
-## Steps to reproduce
-
-<!-- How one can reproduce the issue - this is very important -->
-
-## libinput version you encountered the bug on
-
-<!-- Note: if your libinput version is older than the current stable version,
-please reproduce with a current version instead -->
-
-## Hardware information:
-
-<!-- Model name/number and general hardware information if applicable -->
-
-## Other log output:
-
-- `libinput record` output: <!-- attach file here -->
-- `libinput debug-events --verbose` output: <!-- attach file here -->
-
-<!-- Paste any other relevant logs - please use code blocks (```) to format
-console output, logs, and code as it's very hard to read otherwise.) -->
-
-
-/label ~bug ~"needs triage"

.gitlab/issue_templates/default.md

@@ -0,0 +1,35 @@
+## Summary
+
+<!--
+Summarize the bug encountered concisely. See
+https://wayland.freedesktop.org/libinput/doc/latest/reporting-bugs.html for
+detailed instructions to report bugs
+-->
+
+## Steps to reproduce
+
+<!-- How to reproduce the issue on a developer machine - this is very important -->
+
+## Required information
+
+<!-- Note: if your libinput version is older than the current stable version,
+please reproduce with a current version instead -->
+
+- libinput version:
+- hardware information:
+- `libinput record` output: do not paste, **attach** the file
+- `libinput debug-events --verbose` output: do not paste, **attach the file**
+
+<!--
+
+Paste any other relevant logs - please use code blocks (```) to format
+console output, logs, and code as it's very hard to read otherwise.)
+
+Do not paste logs longer than 10 lines, **attach** those instead.
+
+If your libinput record is longer than 5-10s, we will not be able to process
+it.
+
+-->
+
+/label ~"bug" ~"needs triage"

.pre-commit-config.yaml

@@ -0,0 +1,31 @@
+repos:
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v5.0.0
+  hooks:
+  - id: end-of-file-fixer
+  - id: trailing-whitespace
+  - id: no-commit-to-branch
+    args: ['--branch', 'main']
+- repo: https://github.com/astral-sh/ruff-pre-commit
+  rev: v0.12.2
+  hooks:
+  - id: ruff-check
+    args: ['--ignore=E741,E501', '--extend-exclude=subprojects', '.']
+  - id: ruff-format
+    args: ['--check', '--diff']
+- repo: https://gitlab.freedesktop.org/freedesktop/ci-templates.git
+  rev: e195d80f35b45cc73668be3767b923fd76c70ed5
+  hooks:
+  - id: check-commits
+  - id: generate-template
+- repo: local
+  hooks:
+  - id: run-sed-script
+    name: Check for whitespace errors
+    entry: ./.gitlab-ci/whitespace-check.py
+    language: system
+- repo: https://github.com/pre-commit/mirrors-clang-format
+  rev: v20.1.6
+  hooks:
+  - id: clang-format
+    types_or: [c]

.triage-policies.yml

@@ -0,0 +1,244 @@
+# This is a set of bugbot commands for issues and merge requests - setting any of the
+# bugbot::foo labels will trigger gitlab-triage to run with this ruleset (well, the
+# one we have on the main branch at the time)
+#
+# Note that for adding labels, the label must first created in the project.
+
+# Re-used in issues and mrs
+.close_needinfo: &close_needinfo
+  name: "Close stale needinfo bugs"
+  conditions:
+    labels:
+      - "bugbot::needinfo-timeout"
+  actions:
+    remove_labels:
+      - "bugbot::needinfo-timeout"
+    comment: |
+      I'm closing this bug because some information we requested a while ago was never supplied and
+      we're not able to continue without this information.
+      Please feel free to re-open.
+    status: "close"
+
+.remind_needinfo: &remind_needinfo
+  name: "Remind users of needinfo bugs"
+  conditions:
+    labels:
+      - "bugbot::needinfo-reminder"
+  actions:
+    labels:
+      - "waiting on reporter"
+    remove_labels:
+      - "bugbot::needinfo-reminder"
+    comment: |
+      Hi. This is a friendly reminder that the maintainers are waiting on some information by
+      you (or maybe someone cc'd on this bug). If the information is not provided we may not
+      be able to proceed with this issue or merge request. Please check the recent comments, thanks.
+
+.help_needed: &help_needed
+  name: "Remind users help is needed"
+  conditions:
+    labels:
+      - "bugbot::help-needed"
+  actions:
+    labels:
+      - "help needed"
+    remove_labels:
+      - "bugbot::help-needed"
+    comment: |
+      Hi. This issue or merge request needs help. This simply means that for
+      the foreseeable future, the maintainers will not have time to work on
+      this.
+
+      If this is a request for a new feature, then the feature is unlikely to
+      be implemented unless you or another contributor files a merge request.
+      If a merge request already exists maybe it needs finishing which often
+      involves adding documentation or tests.
+
+      If this is an issue affecting a specific device then it is unlikely to be
+      fixed. This may be because it requires specific hardware to reproduce or
+      it may be that the use case is niche enough that the maintainers do not
+      have time to implement it.
+
+      In short, to resolve this issue or get this merge request into libinput
+      help is needed.
+
+.libinput_record: &libinput_record
+  name: "Request libinput record output"
+  conditions:
+    labels:
+      - "bugbot::libinput-record"
+  actions:
+    remove_labels:
+      - "bugbot::libinput-record"
+    comment: |
+      Looks like we may need some extra information. Please **attach** (do not paste) the full output
+      of `libinput record` and `libinput debug-events --verbose` (if you haven't yet).
+      The [documentation](https://wayland.freedesktop.org/libinput/doc/latest/tools.html#libinput-record-and-libinput-replay)
+      has some information on what we're looking for to be able to triage bugs.
+
+.hid_recorder: &hid_recorder
+  name: "Request hid-recorder output"
+  conditions:
+    labels:
+      - "bugbot::hid-recorder"
+  actions:
+    remove_labels:
+      - "bugbot::hid-recorder"
+    comment: |
+      Looks like we may need some extra information that isn't yet available in this issue.
+      Please **attach** (do not paste) the output of [`hid-recorder`](https://github.com/hidutils/hid-recorder/)
+      for this device (run `sudo hid-recorder` without argument and it will let you pick the device).
+      This should show the data the kernel receives from the device and may provide a hint on what's going on here.
+
+.udev_hid_bpf: &udev_hid_bpf
+  name: "Punt to udev-hid-bpf"
+  conditions:
+    labels:
+      - "bugbot::udev-hid-bpf"
+  actions:
+    remove_labels:
+      - "bugbot::udev-hid-bpf"
+    comment: |
+      This issue looks like it could or should be fixed with [udev-hid-bpf](https://gitlab.freedesktop.org/libevdev/udev-hid-bpf/).
+      udev-hid-bpf is a collection of BPF programs that modify the HID Report Descriptor and/or HID Reports from the device,
+      making it possible to change the properties of a device and/or the events to make them compatible with the
+      expectations the kernel and userspace has of such devices.
+
+      Please see the [udev-hid-bpf documentation](https://libevdev.pages.freedesktop.org/udev-hid-bpf/) for details
+      and/or in particular the [udev-hid-bpf tutorial](https://libevdev.pages.freedesktop.org/udev-hid-bpf/tutorial.html)
+      if you need to enable a new device.
+    status: "close"
+
+resource_rules:
+  issues:
+    rules:
+      - name: "Close kernel bugs"
+        conditions:
+          labels:
+            - "bugbot::kernel"
+        actions:
+          labels:
+            - "kernel"
+          remove_labels:
+            - "bugbot::kernel"
+          comment: |
+            This bug looks like a kernel issue and it cannot be fixed
+            in libinput directly. I'm closing this bug but do feel free
+            to continue discussing the issue here.
+
+            Kernel bugs are usually best sent to the [`linux-input` list](https://lore.kernel.org/linux-input/).
+          status: "close"
+      - name: "Expect a merge request"
+        conditions:
+          labels:
+            - "bugbot::expect-mr"
+        actions:
+          remove_labels:
+            - "bugbot::expect-mr"
+          comment: |
+            I'm closing this bug in anticipation of a merge request that fixes this issue.
+
+            If you are a new contributor, please see
+            [the freedesktop.org wiki](https://gitlab.freedesktop.org/freedesktop/freedesktop/-/wikis/home)
+            on how to get permissions to fork a project and file a merge request.
+
+            The [libinput documentation](https://wayland.freedesktop.org/libinput/doc/latest/contributing.html)
+            also has more details on how to get started.
+          status: "close"
+      - name: "Point to 60-evdev.hwdb"
+        conditions:
+          labels:
+            - "bugbot::evdev-hwdb"
+        actions:
+          remove_labels:
+            - "bugbot::evdev-hwdb"
+          comment: |
+            Looks like this issue may be solved with a device-specific entry in systemd's hwdb.
+
+            You should have a /usr/lib/udev/hwdb.d/60-evdev.hwdb file which includes those quirks. Please see
+            the top of the file for instructions and follow those. Once the quirk is confirmed working
+            this issue (or parts thereof) should be fixed and you can submit a pull request to the
+            [systemd](https://github.com/systemd/systemd/) repository to get that quirk included.
+            Please link to the systemd issue here, thanks.
+
+            I'm closing this issue now, if the hwdb entry does not fix this issue here, please re-open.
+          status: "close"
+      - name: "Close bug for reopening"
+        conditions:
+          labels:
+            - "bugbot::close"
+        actions:
+          remove_labels:
+            - "bugbot::close"
+          comment: |
+            I'm temporarily closing this bug. The bug may not be fixed yet (see any comments above)
+            and we **want you to reopen it when/if it becomes actionable again**.
+
+            This process may feel unfamiliar but unfortunately closing/re-opening is the only action
+            all GitLab users are permitted to do. So we close it, you re-open it when whatever
+            above has been addressed and then we know we need to look at it again.
+            This issue may be closed more than once in a similar fashion but I only leave this
+            comment once since now you understand how it works. :smile:
+
+            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
+      - *close_needinfo
+      - *remind_needinfo
+      - *help_needed
+  merge_requests:
+    rules:
+      - name: "Remind contributor of commit rules"
+        conditions:
+          labels:
+            - "bugbot::commit-rules"
+        actions:
+          remove_labels:
+            - "bugbot::commit-rules"
+          comment: |
+            Hi. Looks like the pipeline failed because one or more of the commits in this MR do not meet our requirements.
+            Most commonly this the format of the commit message itself. The "Test summary" above has the details.
+
+            Please see [our docs for commit messages](https://wayland.freedesktop.org/libinput/doc/latest/contributing.html#commit-messages)
+            and [our docs for submitting code](https://wayland.freedesktop.org/libinput/doc/latest/contributing.html#submitting-code)
+            that explain how to amend and force-push to this repo.
+      - name: "Remind contributor that info needs to be in commit messages"
+        conditions:
+          labels:
+            - "bugbot::info-in-commit-message"
+        actions:
+          remove_labels:
+            - "bugbot::info-in-commit-message"
+          comment: |
+            Hi. Thanks for the merge request. I'm here to request that you add
+            some documentation about this merge request to the
+            **commit message** (or messages). You may have already written some
+            in the merge request description and in many cases it's fine to
+            copy/paste that into the commit message(s).
+
+            The reason is simple: once merged, no-one really looks at this this
+            page here anymore. The git log on the other hand is what developers
+            will use to understand the code so the information must be quickly
+            accessible via git.
+
+            Please see [our docs for submitting code](https://wayland.freedesktop.org/libinput/doc/latest/contributing.html#submitting-code)
+            that explain how to amend and force-push to this repo.
+      - *udev_hid_bpf
+      - *libinput_record
+      - *hid_recorder
+      - *close_needinfo
+      - *remind_needinfo
+      - *help_needed

CODING_STYLE.md

@@ -1,3 +1,4 @@
+# Coding style
 
 - Indentation in tabs, 8 characters wide, spaces after the tabs where
   vertical alignment is required (see below)
@@ -51,51 +52,102 @@ somenamethatiswaytoolong(int a,
 - if it generates a static checker warning, it needs to be fixed or
   commented
 
-- declare variables at the top, try to keep them as local as possible.
-  Exception: if the same variable is re-used in multiple blocks, declare it
-  at the top.
-  Exception: basic loop variables, e.g. for (int i = 0; ...)
+- declare variables when they are used first and try to keep them as local as possible.
+  Exception: basic loop variables, e.g. for (int i = 0; ...) should always be
+  declared inside the loop even where multiple loops exist
 
 ```c
 int a;
-int c;
 
 if (foo) {
-        int b;
+        int b = 10;
 
-        c = get_value();
-        usevalue(c);
+        a = get_value();
+        usevalue(a, b);
 }
 
 if (bar) {
-        c = get_value();
-        useit(c);
+        a = get_value();
+        useit(a);
 }
+
+int c = a * 100;
+useit(c);
 ```
 
-- do not mix function invocations and variable definitions.
+- avoid uninitialized variables where possible, declare them late instead.
+  Note that most of libinput predates this style, try to stick with the code
+  around you if in doubt.
 
   wrong:
 
 ```c
-{
-        int a = foo();
+        int *a;
         int b = 7;
-}
+
+        ... some code ...
+
+        a = zalloc(32);
 ```
 
   right:
+
+```c
+        int b = 7;
+        ... some code ...
+
+        int *a = zalloc(32);
+```
+
+- avoid calling non-obvious functions inside declaration blocks for multiple
+  variables.
+
+  bad:
+
 ```c
 {
-        int a;
-        int b = 7;
-
-        a = foo();
+        int a = 7;
+        int b = some_complicated_function();
+        int *c = zalloc(32);
 }
 ```
 
-  There are exceptions here, e.g. `tp_libinput_context()`,
-  `litest_current_device()`
+  better:
+```c
+{
+        int a = 7;
+        int *c = zalloc(32);
+
+        int b = some_complicated_function();
+}
+```
+
+  There is a bit of gut-feeling involved with this, but the goal is to make
+  the variable values immediately recognizable.
+
+- Where statements are near-identical and repeated, try to keep them
+  identical:
+
+  bad:
+```c
+int a = get_some_value(x++);
+do_something(a);
+a = get_some_value(x++);
+do_something(a);
+a = get_some_value(x++);
+do_something(a);
+```
+  better:
+
+```c
+int a;
+a = = get_some_value(x++);
+do_something(a);
+a = get_some_value(x++);
+do_something(a);
+a = get_some_value(x++);
+do_something(a);
+```
 
 - if/else: { on the same line, no curly braces if both blocks are a single
   statement. If either if or else block are multiple statements, both must
@@ -133,3 +185,60 @@ if (foo) {
 
 - Use stdbool.h's bool for booleans within the library (instead of `int`).
   Exception: the public API uses int, not bool.
+
+# Git commit message requirements
+
+Our CI will check the commit messages for a few requirements. Below is the
+list of what we expect from a git commit.
+
+## Commit message content
+
+A [good commit message](http://who-t.blogspot.com/2009/12/on-commit-messages.html) needs to
+answer three questions:
+
+- Why is it necessary? It may fix a bug, it may add a feature, it may
+  improve performance, reliabilty, stability, or just be a change for the
+  sake of correctness.
+- How does it address the issue? For short obvious patches this part can be
+  omitted, but it should be a high level description of what the approach
+  was.
+- What effects does the patch have? (In addition to the obvious ones, this
+  may include benchmarks, side effects, etc.)
+
+These three questions establish the context for the actual code changes, put
+reviewers and others into the frame of mind to look at the diff and check if
+the approach chosen was correct. A good commit message also helps
+maintainers to decide if a given patch is suitable for stable branches or
+inclusion in a distribution.
+
+## Commit message format
+
+The canonical git commit message format is:
+
+```
+one line as the subject line with a high-level note
+
+full explanation of the patch follows after an empty line. This explanation
+can be multiple paragraphs and is largely free-form. Markdown is not
+supported.
+
+You can include extra data where required like:
+- benchmark one says 10s
+- benchmark two says 12s
+```
+
+The subject line is the first thing everyone sees about this commit, so make
+sure it's on point.
+
+## Commit message technical requirements
+
+- The commit message should use present tense (not past tense). Do write
+  "change foo to bar", not "changed foo to bar".
+- The text width of the commit should be 78 chars or less, especially the
+  subject line.
+- The author must be the name you usually identify as and email address. We do
+  not accept the default `@users.noreply` gitlab addresses.
+  ```
+  git config --global user.name Your Name
+  git config --global user.email your@email
+  ```

CONTRIBUTING.md

@@ -0,0 +1,4 @@
+Thank you for your interest in contributing to libinput.
+
+Please find more information about how to contribute in
+[the documentation](https://wayland.freedesktop.org/libinput/doc/latest/contributing.html).

COPYING

@@ -31,4 +31,4 @@ This copy is provided to provide consistent behavior regardless which kernel
 version libinput is compiled against. The header is used during compilation
 only, libinput does not link against GPL libraries.
 
-[1] https://gitlab.freedesktop.org/libinput/libinput/blob/master/include/linux/input.h
+[1] https://gitlab.freedesktop.org/libinput/libinput/blob/main/include/linux/input.h

README.md

@@ -60,8 +60,8 @@ Examples of how to use libinput are the debugging tools in the libinput
 repository. Developers are encouraged to look at those tools for a
 real-world (yet simple) example on how to use libinput.
 
-- A commandline debugging tool: https://gitlab.freedesktop.org/libinput/libinput/tree/master/tools/libinput-debug-events.c
-- A GTK application that draws cursor/touch/tablet positions: https://gitlab.freedesktop.org/libinput/libinput/tree/master/tools/libinput-debug-gui.c
+- A commandline debugging tool: https://gitlab.freedesktop.org/libinput/libinput/tree/main/tools/libinput-debug-events.c
+- A GTK application that draws cursor/touch/tablet positions: https://gitlab.freedesktop.org/libinput/libinput/tree/main/tools/libinput-debug-gui.c
 
 License
 -------
@@ -75,10 +75,10 @@ libinput is licensed under the MIT license.
 > 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: [...]
 
-See the [COPYING](https://gitlab.freedesktop.org/libinput/libinput/tree/master/COPYING)
+See the [COPYING](https://gitlab.freedesktop.org/libinput/libinput/tree/main/COPYING)
 file for the full license information.
 
 About
 -----
 
-Documentation generated by from git commit [__GIT_VERSION__](https://gitlab.freedesktop.org/libinput/libinput/commit/__GIT_VERSION__)
+Documentation generated from git commit [__GIT_VERSION__](https://gitlab.freedesktop.org/libinput/libinput/commit/__GIT_VERSION__)

completion/zsh/_libinput

@@ -7,7 +7,9 @@
 		"list-devices:List all devices recognized by libinput"
 		"debug-events:Print all events as seen by libinput"
 		"debug-gui:Show a GUI to visualize libinput's events"
+		"debug-tablet:Show tablet axis and button values"
 		"measure:Measure various properties of devices"
+		"analyze:Analyze device data"
 		"record:Record the events from a device"
 		"replay:Replay the events from a device"
 	)
@@ -43,40 +45,61 @@ __all_seats()
 		'--verbose[Use verbose output]' \
 		'--show-keycodes[Make all keycodes visible]' \
 		'--grab[Exclusively grab all opened devices]' \
+		'--compress-motion-events[Compress repeated motion events on a TTY]' \
 		'--device=[Use the given device with the path backend]:device:_files -W /dev/input/ -P /dev/input/' \
 		'--udev=[Listen for notifications on the given seat]:seat:__all_seats' \
 		'--apply-to=[Apply configuration options where the device name matches the pattern]:pattern' \
 		'--disable-sendevents=[Disable send-events option for the devices matching the pattern]:pattern' \
+		'--set-area=[Set the desired area as "x1/y1 x2/y2" (within \[0.0, 1.0\]) ]' \
+		'--set-calibration=[Set the first 6 elements of the 3x3 calibration matrix ("1.0 0.0 0.0 0.0 1.0 0.0")]' \
 		'--set-click-method=[Set the desired click method]:click-method:(none clickfinger buttonareas)' \
-		'--set-scroll-method=[Set the desired scroll method]:scroll-method:(none twofinger edge button)' \
+		'--set-clickfinger-map=[Set button mapping for clickfinger]:tap-map:((  \
+			lrm\:2-fingers\ right-click\ /\ 3-fingers\ middle-click \
+			lmr\:2-fingers\ middle-click\ /\ 3-fingers\ right-click \
+		))' \
+		'--set-eraser-button-button=[Set button mapping for the eraser button]:eraser-button:(BTN_STYLUS BTN_STYLUS2 BTN_STYLUS3)' \
+		'--set-eraser-button-mode=[Set the eraser button mode]:eraser-mode:(default button)' \
+		'--set-pressure-range=[Set the tablet tool pressure range (within range \[0.0, 1.0\])]' \
+		'--set-profile=[Set pointer acceleration profile]:accel-profile:(adaptive flat custom)' \
+		'--set-rotation-angle=[Set the rotation angle in degrees]' \
 		'--set-scroll-button=[Set the button to the given button code]' \
-		'--set-profile=[Set pointer acceleration profile]:accel-profile:(adaptive flat)' \
+		'--set-scroll-method=[Set the desired scroll method]:scroll-method:(none twofinger edge button)' \
 		'--set-speed=[Set pointer acceleration speed (within range \[-1, 1\])]' \
 		'--set-tap-map=[Set button mapping for tapping]:tap-map:((  \
 			lrm\:2-fingers\ right-click\ /\ 3-fingers\ middle-click \
 			lmr\:2-fingers\ middle-click\ /\ 3-fingers\ right-click \
 		))' \
-		+ '(tap-to-click)' \
-		'--enable-tap[Enable tap-to-click]' \
-		'--disable-tap[Disable tap-to-click]' \
+		+ '(custom pointer acceleration)' \
+		'--set-custom-points=[Set n points defining a custom acceleration function]' \
+		'--set-custom-step=[Set the distance along the x axis between the custom points]' \
+		'--set-custom-type=[Set the type of the acceleration function]:custom-type:(fallback motion scroll)' \
 		+ '(drag)' \
 		'--enable-drag[Enable tap-and-drag]' \
 		'--disable-drag[Disable tap-and-drag]' \
 		+ '(drag-lock)' \
 		'--enable-drag-lock[Enable drag-lock]' \
 		'--disable-drag-lock[Disable drag-lock]' \
-		+ '(natural-scrolling)' \
-		'--enable-natural-scrolling[Enable natural scrolling]' \
-		'--disable-natural-scrolling[Disable natural scrolling]' \
+		+ '(dwt)' \
+		'--enable-dwt[Enable disable-while-typing]' \
+		'--disable-dwt[Disable disable-while-typing]' \
+		+ '(dwtp)' \
+		'--enable-dwtp[Enable disable-while-trackpointing]' \
+		'--disable-dwtp[Disable disable-while-trackpointing]' \
 		+ '(left-handed)' \
 		'--enable-left-handed[Enable left handed button configuration]' \
 		'--disable-left-handed[Disable left handed button configuration]' \
 		+ '(middlebutton)' \
 		'--enable-middlebutton[Enable middle button emulation]' \
 		'--disable-middlebutton[Disable middle button emulation]' \
-		+ '(dwt)' \
-		'--enable-dwt[Enable disable-while-typing]' \
-		'--disable-dwt[Disable enable-while-typing]'
+		+ '(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]'
 }
 
 (( $+functions[_libinput_debug-gui] )) || _libinput_debug-gui()
@@ -89,6 +112,15 @@ __all_seats()
 		'--udev=[Listen for notifications on the given seat]:seat:_libinput_all_seats'
 }
 
+(( $+functions[_libinput_debug-tablet] )) || _libinput_debug-tablet()
+{
+	_arguments \
+		'--help[Show debug-tablet help and exit]' \
+		'--device=[Use the given device with the path backend]:device:_files -W /dev/input/ -P /dev/input/' \
+		'--udev=[Use the first tablet device on the given seat]:seat:_libinput_all_seats'
+}
+
+
 (( $+functions[_libinput_measure] )) || _libinput_measure()
 {
 	local curcontext=$curcontext state line ret=1
@@ -148,20 +180,71 @@ __all_seats()
 {
 	_arguments \
 		'--help[Show help message and exit]' \
-		'--format=dat[Specify the data format to be printed. The default is "summary"]'
+		'--format=dat[Specify the data format to be printed. The default is "summary"]' \
 		':device:_files -W /dev/input/ -P /dev/input/'
 }
 
+(( $+functions[_libinput_analyze_per-slot-delta] )) || _libinput_analyze_per-slot-delta()
+{
+	_arguments \
+		'--help[Show help message and exit]' \
+		':recording:_files'
+}
+
+(( $+functions[_libinput_analyze_touch-down-state] )) || _libinput_analyze_touch-down-state()
+{
+	_arguments \
+		'--help[Show help message and exit]' \
+		':recording:_files'
+}
+
+(( $+functions[_libinput_analyze_recording] )) || _libinput_analyze_recording()
+{
+	_arguments \
+		'--help[Show help message and exit]' \
+		':recording:_files'
+}
+
+(( $+functions[_libinput_analyze] )) || _libinput_analyze()
+{
+	local curcontext=$curcontext state line ret=1
+	local features
+	features=(
+		"per-slot-delta:analyze relative movement per touch per slot"
+		"recording:analyze a recording by printing a pretty table"
+		"touch-down-state:analyze a recording for logical touch down states"
+	)
+
+	_arguments -C \
+		'--help[Print help and exit]' \
+		':feature:->feature' \
+		'*:: :->option-or-argument'
+
+	case $state in
+		(feature)
+			_describe -t features 'feature' features
+			;;
+		(option-or-argument)
+			curcontext=${curcontext%:*:*}:libinput-analyze-$words[1]:
+			if ! _call_function ret _libinput_analyze_$words[1]; then
+				_message "unknown feature: $words[1]"
+			fi
+			;;
+	esac
+	return ret
+}
+
 (( $+functions[_libinput_record] )) || _libinput_record()
 {
 	_arguments \
 		'--help[Show help message and exit]' \
 		'--all[Record all /dev/input/event* devices available on the system]' \
 		'--autorestart=[Terminate the current recording after s seconds of device inactivity]' \
-		{-o+,--output=}'[Speficy the output file to use]:file:_files -g "*.yml"' \
+		{-o+,--output=}'[Specify the output file to use]:file:_files -g "*.yml"' \
 		'--multiple[Record multiple devices at once]' \
 		'--show-keycodes[Show keycodes as-is in the recording]' \
 		'--with-libinput[Record libinput events alongside device events]' \
+		'--with-hidraw[Record hidraw events alongside device events]' \
 		'*::device:_files -W /dev/input/ -P /dev/input/'
 }
 

completion/zsh/meson.build

@@ -1,6 +1,6 @@
 zshcompletiondir = get_option('zshcompletiondir')
 if zshcompletiondir == ''
-		zshcompletiondir = join_paths(get_option('datadir'), 'zsh', 'site-functions')
+		zshcompletiondir = get_option('datadir') / 'zsh' / 'site-functions'
 endif
 
 if zshcompletiondir != 'no'

doc/api/libinput.doxygen.in

@@ -10,10 +10,10 @@ MAX_INITIALIZER_LINES  = 0
 WARNINGS               = YES
 QUIET                  = YES
 INPUT                  = "@builddir@"
-FILTER_PATTERNS        = *.h *.dox
 IMAGE_PATH             = "@builddir@"
+OUTPUT_DIRECTORY       = doc
 GENERATE_HTML          = YES
-HTML_OUTPUT            = api
+HTML_OUTPUT            = html
 SEARCHENGINE           = NO
 USE_MATHJAX            = YES
 MATHJAX_RELPATH        = https://cdn.mathjax.org/mathjax/latest
@@ -25,6 +25,7 @@ PREDEFINED             = LIBINPUT_ATTRIBUTE_PRINTF(f, a)= \
 DOTFILE_DIRS           = "@builddir@"
 EXAMPLE_PATH           = "@builddir@"
 SHOW_NAMESPACES        = NO
+HAVE_DOT               = YES
 
 HTML_HEADER = "@builddir@/header.html"
 HTML_FOOTER = "@builddir@/footer.html"

doc/api/mainpage.dox

@@ -130,6 +130,6 @@ release.
 
 @section About
 
-Documentation generated by from git commit [__GIT_VERSION__](https://gitlab.freedesktop.org/libinput/libinput/commit/__GIT_VERSION__)
+Documentation generated from git commit [__GIT_VERSION__](https://gitlab.freedesktop.org/libinput/libinput/commit/__GIT_VERSION__)
 
 */

doc/api/meson.build

@@ -9,26 +9,6 @@ if not dot.found()
 	error('Program "dot" not found or not executable. Try building with -Ddocumentation=false')
 endif
 
-doxygen_version_cmd = run_command(doxygen.path(), '--version')
-if doxygen_version_cmd.returncode() != 0
-	error('Command "doxygen --version" failed.')
-endif
-doxygen_version = doxygen_version_cmd.stdout()
-if doxygen_version.version_compare('< 1.8.3')
-	error('doxygen needs to be at least version 1.8.3 (have @0@)'.format(doxygen_version))
-endif
-grep = find_program('grep')
-dot_version_cmd = run_command(dot.path(), '-V')
-if dot_version_cmd.returncode() != 0
-	error('Command "dot -V" failed.')
-endif
-# dot -V output is (to stderr):
-# 	dot - graphviz version 2.38.0 (20140413.2041)
-dot_version = dot_version_cmd.stderr().split(' ')[4]
-if dot_version.version_compare('< 2.26')
-	error('Graphviz dot needs to be at least version 2.26 (have @0@)'.format(dot_version))
-endif
-
 mainpage = vcs_tag(command : ['git', 'log', '-1', '--format=%h'],
 		 fallback : 'unknown',
 		 input : 'mainpage.dox',
@@ -37,7 +17,7 @@ mainpage = vcs_tag(command : ['git', 'log', '-1', '--format=%h'],
 
 src_doxygen = files(
 	# source files
-	join_paths(meson.source_root(), 'src', 'libinput.h'),
+	'../../src/libinput.h',
 	# style files
 	'style/header.html',
 	'style/footer.html',
@@ -46,19 +26,11 @@ src_doxygen = files(
 	'style/libinputdoxygen.css',
 )
 
-config_noop = configuration_data()
-# Set a dummy replacement to silence meson warnings:
-# meson.build:487: WARNING: Got an empty configuration_data() object and
-# 		   found no substitutions in the input file 'foo'. If you
-# 		   want to copy a file to the build dir, use the 'copy:'
-# 		   keyword argument added in 0.47.0
-config_noop.set('dummy', 'dummy')
-
 doxyfiles = []
 foreach f : src_doxygen
 	df = configure_file(input: f,
 			    output: '@PLAINNAME@',
-			    configuration : config_noop)
+			    copy : true)
 	doxyfiles += [ df ]
 endforeach
 
@@ -73,7 +45,7 @@ doxyfile = configure_file(input : 'libinput.doxygen.in',
 
 custom_target('doxygen',
 	      input : [ doxyfiles, doxyfile, mainpage ] + src_doxygen,
-	      output : [ '.' ],
+	      output : [ 'html' ],
 	      command : [ doxygen, doxyfile ],
 	      install : false,
 	      depends: [ mainpage ],

doc/user/absolute-coordinate-ranges.rst

@@ -33,59 +33,78 @@ Measuring and fixing touchpad ranges
 To fix the touchpad you need to:
 
 #. measure the physical size of your touchpad in mm
-#. run touchpad-edge-detector
-#. trim the udev match rule to something sensible
-#. replace the resolution with the calculated resolution based on physical settings
+#. run the ``libinput measure touchpad-size`` tool
+#. verify the hwdb entry provided by this tool
 #. test locally
-#. send a patch to the systemd project
+#. send a patch to the `systemd project <https://github.com/systemd/systemd>`_.
 
 Detailed explanations are below.
 
-`libevdev <http://freedesktop.org/wiki/Software/libevdev/>`_ provides a tool
-called **touchpad-edge-detector** that allows measuring the touchpad's input
-ranges. Run the tool as root against the device node of your touchpad device
-and repeatedly move a finger around the whole outside area of the
-touchpad. Then control+c the process and note the output.
-An example output is below:
-
+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
+automatically.
 
 ::
 
-     $> sudo touchpad-edge-detector /dev/input/event4
-     Touchpad SynPS/2 Synaptics TouchPad on /dev/input/event4
-     Move one finger around the touchpad to detect the actual edges
-     Kernel says:	x [1024..3112], y [2024..4832]
-     Touchpad sends:	x [2445..4252], y [3464..4071]
+     $> sudo libinput measure touchpad-size 100x55
+     Using "Touchpad SynPS/2 Synaptics TouchPad": /dev/input/event4
 
-     Touchpad size as listed by the kernel: 49x66mm
-     Calculate resolution as:
-	x axis: 2088/<width in mm>
-	y axis: 2808/<height in mm>
+     Kernel specified touchpad size: 99.7x75.9mm
+     User specified touchpad size:   100.0x55.0mm
 
-     Suggested udev rule:
-     # <Laptop model description goes here>
-     evdev:name:SynPS/2 Synaptics TouchPad:dmi:bvnLENOVO:bvrGJET72WW(2.22):bd02/21/2014:svnLENOVO:pn20ARS25701:pvrThinkPadT440s:rvnLENOVO:rn20ARS25701:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNotAvailable:*
-      EVDEV_ABS_00=2445:4252:<x resolution>
-      EVDEV_ABS_01=3464:4071:<y resolution>
-      EVDEV_ABS_35=2445:4252:<x resolution>
-      EVDEV_ABS_36=3464:4071:<y resolution>
+     Kernel axis range:   x [1024..5112], y [2024..4832]
+     Detected axis range: x [   0..   0], y [   0..   0]
+
+     Move one finger along all edges of the touchpad
+     until the detected axis range stops changing.
+
+     ...
+
+Move the finger around until the detected axis range matches the data sent
+by the device. ``Ctrl+C`` terminates the tool and prints a
+suggested hwdb entry. ::
+
+    ...
+    Kernel axis range:   x [1024..5112], y [2024..4832]
+    ^C
+    Detected axis range: x [2072..4880], y [2159..4832]
+    Resolutions calculated based on user-specified size: x 28, y 49 units/mm
+
+    Suggested hwdb entry:
+    Note: the dmi modalias match is a guess based on your machine's modalias:
+      dmi:bvnLENOVO:bvrGJET72WW(2.22):bd02/21/2014:svnLENOVO:pn20ARS25701:pvrThinkPadT440s:rvnLENOVO:rn20ARS25701:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNotAvailable:
+    Please verify that this is the most sensible match and adjust if necessary.
+    -8<--------------------------
+    # Laptop model description (e.g. Lenovo X1 Carbon 5th)
+    evdev:name:SynPS/2 Synaptics TouchPad:dmi:*svnLENOVO:*pvrThinkPadT440s*
+     EVDEV_ABS_00=2072:4880:28
+     EVDEV_ABS_01=2159:4832:49
+     EVDEV_ABS_35=2072:4880:28
+     EVDEV_ABS_36=2159:4832:49
+    -8<--------------------------
+    Instructions on what to do with this snippet are in /usr/lib/udev/hwdb.d/60-evdev.hwdb
 
 
-
-Note the discrepancy between the coordinate range the kernels advertises vs.
-what the touchpad sends.
-To fix the advertised ranges, the udev rule should be taken and trimmed
-before being sent to the `systemd project <https://github.com/systemd/systemd>`_.
+If there are discrepancies between the coordinate range the kernels
+advertises and what what the touchpad sends, the hwdb entry should be added to the
+``60-evdev.hwdb`` file provided by the `systemd project <https://github.com/systemd/systemd>`_.
 An example commit can be found
 `here <https://github.com/systemd/systemd/commit/26f667eac1c5e89b689aa0a1daef6a80f473e045>`_.
 
-In most cases the match can and should be trimmed to the system vendor (svn)
-and the product version (pvr), with everything else replaced by a wildcard
-(*). In this case, a Lenovo T440s, a suitable match string would be:
+The ``libinput measure touchpad-size`` tool attempts to provide the correct
+dmi match but it does require user verification.
+
+In most cases the dmi match can and should be trimmed to the system vendor (``svn``)
+and the product version (``pvr``) or product name (``pn``), with everything else
+replaced by a wildcard (``*``). In the above case, the match string is:
+
 ::
 
      evdev:name:SynPS/2 Synaptics TouchPad:dmi:*svnLENOVO:*pvrThinkPadT440s*
 
+As a general rule: for Lenovo devices use ``pvr`` and for all others use
+``pn``.
 
 .. note:: hwdb match strings only allow for alphanumeric ascii characters. Use a
 	wildcard (* or ?, whichever appropriate) for special characters.
@@ -95,19 +114,19 @@ The actual axis overrides are in the form:
 ::
 
      # axis number=min:max:resolution
-      EVDEV_ABS_00=2445:4252:42
+      EVDEV_ABS_00=2072:4880:28
 
 or, if the range is correct but the resolution is wrong
 
 ::
 
      # axis number=::resolution
-      EVDEV_ABS_00=::42
+      EVDEV_ABS_00=::28
 
 
 Note the leading single space. The axis numbers are in hex and can be found
-in *linux/input-event-codes.h*. For touchpads ABS_X, ABS_Y,
-ABS_MT_POSITION_X and ABS_MT_POSITION_Y are required.
+in ``linux/input-event-codes.h``. For touchpads ``ABS_X``, ``ABS_Y``,
+``ABS_MT_POSITION_X`` and ``ABS_MT_POSITION_Y`` are required.
 
 .. note:: The touchpad's ranges and/or resolution should only be fixed when
 	there is a significant discrepancy. A few units do not make a
@@ -116,7 +135,7 @@ ABS_MT_POSITION_X and ABS_MT_POSITION_Y are required.
 
 Once a match and override rule has been found, follow the instructions at
 the top of the
-`60-evdev.hwdb <https://github.com/systemd/systemd/blob/master/hwdb/60-evdev.hwdb>`_
+`60-evdev.hwdb <https://github.com/systemd/systemd/blob/main/hwdb.d/60-evdev.hwdb>`_
 file to save it locally and trigger the udev hwdb reload. Rebooting is
 always a good idea. If the match string is correct, the new properties will
 show up in the

doc/user/architecture.rst

@@ -13,6 +13,10 @@ for almost all API calls. General device handling is in ``evdev.c`` with the
 device-type-specific implementations in ``evdev-<type>.c``. It is not
 necessary to understand all of libinput to contribute a patch.
 
+As of libinput 1.29 libinput has an internal plugin pipeline that modifies
+the event stream before libinput proper sees it, see
+:ref:`architecture-plugins`.
+
 :ref:`architecture-contexts` is the only user-visible implementation detail,
 everything else is purely internal implementation and may change when
 required.
@@ -150,10 +154,8 @@ pointers to handle events. Four such dispatch methods are currently
 implemented: touchpad, tablet, tablet pad, and the fallback dispatch which
 handles mice, keyboards and touchscreens.
 
-
 .. graphviz::
 
-
     digraph context
     {
       compound=true;
@@ -177,13 +179,15 @@ handles mice, keyboards and touchscreens.
     }
 
 
+Event dispatch is done per "evdev frame", a collection of events up until including
+the ``SYN_REPORT``. One such ``struct evdev_frame`` represents all state **updates**
+to the previous frame.
+
 While ``evdev.c`` pulls the event out of libevdev, the actual handling of the
 events is performed within the dispatch method.
 
-
 .. graphviz::
 
-
     digraph context
     {
       compound=true;
@@ -194,22 +198,107 @@ events is performed within the dispatch method.
 
       evdev [label="evdev_device_dispatch()"]
 
+      plugins [label="plugin pipline"]
+
       fallback [label="fallback_interface_process()"];
       touchpad [label="tp_interface_process()"]
       tablet [label="tablet_process()"]
       pad [label="pad_process()"]
 
-      evdev -> fallback;
-      evdev -> touchpad;
-      evdev -> tablet;
-      evdev -> pad;
+      evdev -> plugins;
+      plugins -> fallback;
+      plugins -> touchpad;
+      plugins -> tablet;
+      plugins -> pad;
     }
 
 
-The dispatch methods then look at the ``struct input_event`` and proceed to
-update the state. Note: the serialized nature of the kernel evdev protocol
-requires that the device updates the state with each event but to delay
-processing until the ``SYN_REPORT`` event is received.
+The dispatch methods then look at the ``struct evdev_frame`` and proceed to
+update the state.
+
+.. _architecture-plugins:
+
+------------------------------------------------------------------------------
+The Plugin Pipeline
+------------------------------------------------------------------------------
+
+As of libinput 1.29 libinput has an **internal** plugin pipeline. These plugins
+logically sit between libevdev and the :ref:`architecture-dispatch` and modify
+the device and/or event stream. The primary motivation of such plugins is that
+modifying the event stream is often simpler than analyzing the state later.
+
+Plugins are loaded on libinput context startup and are executed in-order. The last
+plugin is the hardcoded `evdev-plugin.c` which takes the modified event stream and
+passes the events to the dispatch.
+
+.. graphviz::
+
+    digraph context
+    {
+      compound=true;
+      rankdir="LR";
+      node [
+        shape="box";
+      ]
+
+      evdev [label="evdev_device_dispatch()"]
+
+      p1 [label="P1"]
+      p2 [label="P2"]
+      p3 [label="P3"]
+      ep [label="evdev-plugin"]
+
+      fallback [label="fallback_interface_process()"];
+      touchpad [label="tp_interface_process()"]
+      tablet [label="tablet_process()"]
+      pad [label="pad_process()"]
+
+      evdev -> p1;
+      p1 -> p2;
+      p2 -> p3;
+      p3 -> ep;
+      ep -> fallback;
+      ep -> touchpad;
+      ep -> tablet;
+      ep -> pad;
+    }
+
+Each plugin may not only modify the current event frame (this includes adding/removing events
+from the frame), it may also append or prepend additional event frames. For
+example the tablet proximity-timer plugin adds proximity in/out events to the
+event stream.
+
+.. graphviz::
+
+    digraph context
+    {
+      compound=true;
+      rankdir="LR";
+      node [
+        shape="box";
+      ]
+      n0 [label= "", shape=none,height=.0,width=.0]
+      n1 [label= "", shape=none,height=.0,width=.0]
+
+      p1 [label="P1"]
+      p2 [label="P2"]
+      p3 [label="P3"]
+      ep [label="evdev-plugin"]
+
+      n0 -> p1 [label="F1"];
+      p1 -> p2 [label="F1"];
+      p2 -> p3 [label="F1,F2"];
+      p3 -> ep [label="F3,F1,F2"];
+      ep -> n1 [label="F3,F1,F2"];
+    }
+
+In the diagram above, the plugin ``P2`` *appends* a new frame (``F2``), the plugin ``P3``
+*prepends* a new frame (``F3``). The original event frame ``F1`` thus becomes the event frame
+sequence ``F3``, ``F1``, ``F2`` by the time it reaches the :ref:`architecture-dispatch`.
+
+Note that each plugin only sees one event frame at a time, so ``P3`` would see ``F1`` first,
+decides to prepend ``F3`` and passes ``F1`` through. It then sees ``F2`` but does nothing with
+it (optionally modified in-place).
 
 .. _architecture-configuration:
 

doc/user/building.rst

@@ -16,6 +16,29 @@ The build instruction on this page detail how to overwrite your
 system-provided libinput with one from the git repository, see
 see :ref:`reverting_install` to revert to the previous state.
 
+.. _distribution_repos:
+
+------------------------------------------------------------------------------
+Distribution repositories for libinput from git
+------------------------------------------------------------------------------
+
+Some distributions provide package repositories for users that want to test
+the latest libinput without building it manually.
+
+.. note:: The list below is provided for convenience. The libinput community
+   cannot provide any guarantees that the packages in those repositories are
+   correct, up-to-date and/or unmodified from the git branch. Due dilligence
+   is recommended.
+
+The following repositories provide an up-to-date package for libinput:
+
+- **Arch:** https://aur.archlinux.org/packages/libinput-git/
+- **Fedora:** https://copr.fedorainfracloud.org/coprs/whot/libinput-git/
+
+Please follow the respective repositories for instructions on how to enable
+the repository and install libinput.
+
+
 .. _building:
 
 ------------------------------------------------------------------------------
@@ -32,7 +55,7 @@ process below.  A successful build requires the
 
      $> git clone https://gitlab.freedesktop.org/libinput/libinput
      $> cd libinput
-     $> meson --prefix=/usr builddir/
+     $> meson setup --prefix=/usr builddir/
      $> ninja -C builddir/
      $> sudo ninja -C builddir/ install
 
@@ -48,7 +71,7 @@ Additional options may also be specified. For example:
 
 ::
 
-     $> meson --prefix=/usr -Ddocumentation=false builddir/
+     $> meson setup --prefix=/usr -Ddocumentation=false builddir/
 
 
 We recommend that users disable the documentation, it's not usually required
@@ -73,7 +96,7 @@ again:
 ::
 
      $> rm -r builddir/
-     $> meson --prefix=....
+     $> meson setup --prefix=....
 
 
 .. _verifying_install:
@@ -87,12 +110,10 @@ the library path and that all symlinks point to the new library.
 
 ::
 
-     $> ls -l /usr/lib64/libinput.*
-     -rwxr-xr-x 1 root root    946 Apr 28  2015 /usr/lib64/libinput.la
-     lrwxrwxrwx 1 root root     19 Feb  1 15:12 /usr/lib64/libinput.so -> libinput.so.10.13.0
-     lrwxrwxrwx 1 root root     19 Feb  1 15:12 /usr/lib64/libinput.so.10 -> libinput.so.10.13.0
-     -rwxr-xr-x 1 root root 204992 Feb  1 15:12 /usr/lib64/libinput.so.10.13.0
-
+     $> ldconfig -p | grep libinput | awk '{print $NF}' | xargs ls -l
+     lrwxrwxrwx 1 root root      14 lug 22 13:06 /usr/lib/x86_64-linux-gnu/libinput.so -> libinput.so.10
+     lrwxrwxrwx 1 root root      19 lug 22 13:06 /usr/lib/x86_64-linux-gnu/libinput.so.10 -> libinput.so.10.13.0
+     -rwxr-xr-x 1 root root 1064144 lug 22 13:06 /usr/lib/x86_64-linux-gnu/libinput.so.10.13.0
 
 .. _reverting_install:
 
@@ -121,7 +142,7 @@ overwriting manually installed files.
 - **Fedora 22** and later: ``sudo dnf reinstall libinput``
 - **RHEL/CentOS/Fedora 21** and earlier: ``sudo yum reinstall libinput``
 - **openSUSE**: ``sudo zypper install --force libinput10``
-- **Arch**: ``sudo packman -S libinput``
+- **Arch**: ``sudo pacman -S libinput``
 
 .. _building_selinux:
 
@@ -167,8 +188,8 @@ libinput has a few build-time dependencies that must be installed prior to
 running meson.
 
 .. hint:: The build dependencies for some distributions can be found in the
-	`GitLab Continuous Integration file <https://gitlab.freedesktop.org/libinput/libinput/blob/master/.gitlab-ci.yml>`_.
-	Search for **FEDORA_RPMS** in the **variables:** definition
+	`GitLab Continuous Integration file <https://gitlab.freedesktop.org/libinput/libinput/blob/main/.gitlab-ci.yml>`_.
+	Search for **FEDORA_PACKAGES** in the **variables:** definition
 	and check the list for an entry for your distribution.
 
 In most cases, it is sufficient to install the dependencies that your
@@ -201,6 +222,14 @@ found``.  See
 `this blog post here <https://who-t.blogspot.com/2018/07/meson-fails-with-native-dependency-not-found.html>`_
 for instructions on how to fix it.
 
+..............................................................................
+Build dependencies per distribution
+..............................................................................
+
+
+.. include:: dependencies.rst
+
+
 .. _building_conditional:
 
 ------------------------------------------------------------------------------
@@ -213,7 +242,7 @@ available options. The default build enables most options and thus requires
 more build dependencies. On systems where build dependencies are an issue,
 options may be disabled with this meson command: ::
 
-    meson --prefix=/usr -Dsomefeature=false builddir
+    meson setup --prefix=/usr -Dsomefeature=false builddir
 
 Where ``-Dsomefeature=false`` may be one of:
 
@@ -253,6 +282,11 @@ Software that uses meson should use the ``dependency()`` function: ::
     pkgconfig = import('pkgconfig')
     dep_libinput = dependency('libinput')
 
+Software that uses CMake should use: ::
+
+    find_package(Libinput)
+    target_link_libraries(myprogram PRIVATE Libinput::Libinput)
+
 Otherwise, the most rudimentary way to compile and link a program against
 libinput is:
 

doc/user/clickpad-softbuttons.rst

@@ -102,11 +102,12 @@ ignores such button clicks, this behavior is intentional.
 Clickfinger behavior
 ------------------------------------------------------------------------------
 
-This is the default behavior on Apple touchpads.
-Here, a left, right, middle button event is generated when one, two, or
-three fingers are held down on the touchpad when a physical click is
-generated. The location of the fingers does not matter and there are no
-software-defined button areas.
+This is the default behavior on Apple touchpads. Here, a left, right, middle
+button event is generated when one, two, or three fingers are held down on the
+touchpad when a physical click is generated, given the default mapping. The
+location of the fingers does not matter and there are no software-defined
+button areas. It is possible to swap right and middle buttons, the same way as
+with :ref:`tapping <tapping>`.
 
 .. figure:: clickfinger.svg
     :align: center

doc/user/clickpad-with-right-button.rst

@@ -0,0 +1,46 @@
+.. _clickpads_with_right_buttons:
+
+==============================================================================
+Clickpads with a fake right button
+==============================================================================
+
+libinput relies on the kernel to label :ref:`Clickpads <touchpads_buttons_clickpads>`
+with the ``INPUT_PROP_BUTTONPAD`` property so it can enable the correct
+:ref:`clickpad_softbuttons`. Clickpads are not expected to have a right button
+since the whole surface can be depressed.
+
+A common bug encountered with :ref:`Clickpads <touchpads_buttons_clickpads>`
+is that the device advertises a physical right button where no such button
+exists. This is usually a bug in the firmware of the device and causes the
+following warning to be emitted by libinput::
+
+    "<device name> clickpad advertising right button"
+
+The user-visible effect of this is usually negligible since these devices
+cannot actually trigger a right click and libinput's default behaviors for
+clickpads work as expected.
+
+However, we should nonetheless correct the device to get rid of this warning
+and avoid potential issues with future features. The :ref:`device-quirks`
+provide a simple way to disable the fake right button on the device. The
+following quirk disables the right button on the MyModel laptop from the
+MyVendor OEM::
+
+    [MyVendor MyModel Touchpad]
+    MatchName=Foo Bar Touchpad
+    MatchUdevtype=touchpad
+    MatchDMIModAlias=dmi:*:svnMyVendor:pnMyModel:*
+    AttrEventCode=-BTN_RIGHT
+
+The name of the device can be obtained using :ref:`libinput record <libinput-record>`,
+the modalias match is a shell-style glob against the value of ``/sys/class/dmi/id/modalias``.
+In most cases, matching should be against ``svn`` (system vendor) and one of
+``pn`` (product name) or ``pvr`` (product version), whichever provides a
+useful description of the individual laptop model. See the
+:ref:`device-quirks` documentation for details on testing local quirks.
+
+For reference, some example commits that add such a quirk are:
+
+ - `bf61ab9bb0694d0ac3d60a7f815779abfe4886e6 <https://gitlab.freedesktop.org/libinput/libinput/-/commit/bf61ab9bb0694d0ac3d60a7f815779abfe4886e6>`__
+ - `74fac6d040ac62048882dfb6f73da567ace6a6f5 <https://gitlab.freedesktop.org/libinput/libinput/-/commit/74fac6d040ac62048882dfb6f73da567ace6a6f5>`__
+ - `89cd0f990e3bee9906754d6ca8484ed5aa392249 <https://gitlab.freedesktop.org/libinput/libinput/-/commit/89cd0f990e3bee9906754d6ca8484ed5aa392249>`__

doc/user/conf.py.in

@@ -21,7 +21,7 @@ sys.path.insert(0, os.path.abspath('@BUILDDIR@'))
 # -- Project information -----------------------------------------------------
 
 project = '@PROJECT_NAME@'
-copyright = '2018, the libinput authors'
+copyright = '2019, the libinput authors'
 author = 'the libinput authors'
 
 # The short X.Y version
@@ -62,7 +62,7 @@ master_doc = 'index'
 #
 # This is also used if you do content translation via gettext catalogs.
 # Usually you set "language" from the command line for these cases.
-language = None
+language = 'en'
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
@@ -167,13 +167,9 @@ texinfo_documents = [
 
 from recommonmark.parser import CommonMarkParser
 
-source_parsers = {
-    '.md': CommonMarkParser,
-}
-
 extlinks = { 'commit' :
 		('https://gitlab.freedesktop.org/libinput/libinput/commit/%s',
-			'git commit ')
+			'git commit %s')
 }
 
 # -- git version hack -------------------------------------------------

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.
 
 
@@ -28,7 +34,7 @@ options exposed by libinput are:
 - how many tapping fingers are supported by this device
 - a toggle to enable/disable tapping
 - a toggle to enable/disable tap-and-drag, see :ref:`tapndrag`.
-- a toggle to enable/disable tap-and-drag drag lock see :ref:`tapndrag`
+- a toggle to enable/disable tap-and-drag drag lock, see :ref:`tapndrag`
 - The default order is 1, 2, 3 finger tap mapping to left, right, middle
   click, respectively. This order can be changed to left, middle, right click,
   respectively.
@@ -37,6 +43,19 @@ Tapping is usually available on touchpads and the touchpad part of external
 graphics tablets. Tapping is usually **not** available on touch screens,
 for those devices it is expected to be implemented by the toolkit.
 
+------------------------------------------------------------------------------
+Three-finger drag
+------------------------------------------------------------------------------
+
+Three-finger drag allows emulates the mouse button down while three fingers
+are down on a touchpad without the need to press a physical button or use
+:ref:`tapndrag`. See :ref:`drag_3fg` for details on how this feature works.
+
+Three-finger drag is usually available on touchpads and the touchpad part of
+external graphics tablets. Three-finger drag is usually **not** available on
+touch screens, for those devices it is expected to be implemented by the
+toolkit.
+
 ------------------------------------------------------------------------------
 Send Events Mode
 ------------------------------------------------------------------------------
@@ -135,12 +154,25 @@ Disable while typing
 ------------------------------------------------------------------------------
 
 DWT is the most generic form of palm detection on touchpad. While the user
-is typing the touchpad is disabled, the touchpad is enabled after a timeout.
-See :ref:`disable-while-typing` for more info.
+is typing on an internal keyboard the touchpad is disabled, the touchpad
+is enabled again after a timeout.  See :ref:`disable-while-typing` for more
+info.
 
 Disable-while-typing can be enabled or disabled, it is enabled by default on
 most touchpads.
 
+------------------------------------------------------------------------------
+Disable while trackpointing
+------------------------------------------------------------------------------
+
+DWTP is a form of palm detecion for devices that have a trackpoint (like
+Thinkpads). While the user is using the trackpoint, the touchpad is disabled,
+being enabled again after a timeout. See :ref:`disable-while-trackpointing` for
+more info.
+
+Disable-while-trackpointing can be enabled or disabled, it is enabled by
+default.
+
 ------------------------------------------------------------------------------
 Calibration
 ------------------------------------------------------------------------------
@@ -155,8 +187,51 @@ environment should provide an interface for this.
 Rotation
 ------------------------------------------------------------------------------
 
-The device rotation applies a corrective angle to relative input events.
-This is currently only available on trackpoints which may be used sideways
-or upside-down. The angle can be freely chosen but not all devices support
-rotation other than 0, 90, 180, or 270 degrees. Rotation is off (0 degrees)
-by default.
+The device rotation applies a corrective angle to relative input events,
+allowing the device to be used e.g. sideways or upside-down. For example, a
+trackball may be used in a 90° rotated position for accessibility reasons -
+such a rotated position allows triggering the buttons with the thumb or
+the non-dominant hand.
+
+Note that where a device rotation is higher than 160 but less than 200 degrees,
+the direction of wheels is also inverted. For all other angles, the wheel
+direction is left as-is.
+
+.. _config-tablet-pressure-range:
+
+------------------------------------------------------------------------------
+Tablet tool pressure range
+------------------------------------------------------------------------------
+
+The pressure range on a :ref:`Tablet tool <tablet-tools>` can be reduced
+from the full available hardware range to a subset of that range. The effect
+of this is that the tablet will not register pressure below the given
+the given threshold is met, and will reach the maximum logical pressure
+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
+------------------------------------------------------------------------------
+
+Area configuration is available for some indirect input devices such as
+graphics tablets. This configuration allows reducing the active area of
+such a device to a subset of the physically possible area.
+
+An example use-case for this is to match the aspect ratio of the device to that
+of the screen.
+
+See :ref:`tablet-area` for more info.

doc/user/contributing.rst

@@ -5,18 +5,152 @@
 Contributing to libinput
 ==============================================================================
 
-Contributions to libinput are always welcome. Please see the steps below for
-details on how to create merge requests, correct git formatting and other
-topics:
+
+So you want to contribute to libinput? Great! We'd love to help you be a part
+of our community. Here is some important information to help you.
 
 .. contents::
     :local:
 
-Questions regarding this process can be asked on ``#wayland-devel`` on
-freenode or on the `wayland-devel@lists.freedesktop.org
+------------------------------------------------------------------------------
+Code of Conduct
+------------------------------------------------------------------------------
+
+As a freedesktop.org project, libinput follows the `freedesktop.org
+Contributor Covenant <https://www.freedesktop.org/wiki/CodeOfConduct>`_.
+
+Please conduct yourself in a respectful and civilised manner when
+interacting with community members on mailing lists, IRC, or bug trackers.
+The community represents the project as a whole, and abusive or bullying
+behaviour is not tolerated by the project.
+
+------------------------------------------------------------------------------
+Contact
+------------------------------------------------------------------------------
+
+Questions can be asked on ``#wayland`` on oftc or on the
+`wayland-devel@lists.freedesktop.org
 <https://lists.freedesktop.org/mailman/listinfo/wayland-devel>`_ mailing
 list.
 
+For IRC, ping user ``whot`` (Peter Hutterer, the libinput maintainer) though
+note that he lives on UTC+10 and thus the rest of the world is out of sync
+by default ;)
+
+For anything that appears to be device specific and/or related to a new
+feature, just file `an issue in our issue tracker
+<https://gitlab.freedesktop.org/libinput/libinput/issues>`_. It's usually the
+most efficient way to get answers.
+
+------------------------------------------------------------------------------
+What to work on?
+------------------------------------------------------------------------------
+
+If you don't already know what you want to improve or fix with libinput,
+then a good way of finding something is to search for the ``help needed``
+tag in our `issue tracker <https://gitlab.freedesktop.org/libinput/libinput/issues?label_name%5B%5D=help+needed>`_.
+These are issues that have been triaged to some degree and deemed to be a
+possible future feature to libinput.
+
+.. note:: Some of these issue may require specific hardware to reproduce.
+
+Another good place to help out with is the documentation. For anything you
+find in these pages that isn't clear enough please feel free to reword it
+and add what is missing.
+
+------------------------------------------------------------------------------
+Getting the code
+------------------------------------------------------------------------------
+
+The :ref:`building_libinput` have all the details but the short solution
+will be:
+
+::
+
+     $> git clone https://gitlab.freedesktop.org/libinput/libinput
+     $> cd libinput
+     $> meson setup --prefix=/usr builddir/
+     $> ninja -C builddir/
+     $> sudo ninja -C builddir/ install
+
+You can omit the last step if you only want to test locally.
+
+------------------------------------------------------------------------------
+Working on the code
+------------------------------------------------------------------------------
+
+If you are planning to send patches, it's a good idea to set up
+`pre-commit <https://pre-commit.com/>`_ with these commands::
+
+     $> pre-commit install
+     $> pre-commit install --hook-type pre-push
+
+This will check a few things before you commit and/or push to your repos to
+reduce the turnaround time for some common mistakes.
+
+libinput has a roughly three-parts architecture:
+
+-  the front-end code which handles the ``libinput_some_function()`` API calls in ``libinput.c``
+-  the generic evdev interface handling which maps those API calls to the
+   backend calls (``evdev.c``).
+- there are device-specific backends which do most of the actual work -
+  ``evdev-mt-touchpad.c`` is the one for touchpads for example.
+
+In general, things that only affect the internal workings of a device only
+get implemented in the device-specific backend. You only need to touch the
+API when you are adding configuration options. For more details, please read
+the :ref:`architecture` document. There's also a `blog post describing the
+building blocks
+<https://who-t.blogspot.com/2019/03/libinputs-internal-building-blocks.html>`_
+that may help to understand how it all fits together.
+
+Documentation is in ``/doc/api`` for the doxygen-generated API documentation.
+These are extracted from the libinput source code directly. The
+documentation you're reading right now is in ``/doc/user`` and generated with
+sphinx. Simply running ``ninja -C builddir`` will rebuild it and the final
+product ends up in ``builddir/Documentation``.
+
+------------------------------------------------------------------------------
+Testing the code
+------------------------------------------------------------------------------
+
+libinput provides a bunch of :ref:`tools` to debug any changes - without
+having to install libinput.
+
+The two most useful ones are :ref:`libinput debug-events
+<libinput-debug-events>` and :ref:`libinput debug-gui <libinput-debug-gui>`.
+Both tools can be run from the build directory directly and are great for
+quick test iterations::
+
+  $> sudo ./builddir/libinput-debug-events --verbose
+  $> sudo ./builddir/libinput-debug-gui --verbose
+
+The former provides purely textual output and is useful for verifying event
+streams from buttons, etc. The latter is particularly useful when you are
+trying to debug pointer movement or placement. ``libinput debug-gui`` will
+also visualize the raw data from the device so you can compare pointer
+behavior with what comes from the kernel.
+
+These tools create a new libinput context and will not affect your session's
+behavior. Only once you've installed libinput and restarted your session
+will your changes affect the X server/Wayland compositor.
+
+Once everything seems to be correct, it's time to run the
+:ref:`test-suite`::
+
+  $> sudo ./builddir/libinput-test-suite
+
+This test suite can take test names etc. as arguments, have a look at
+:ref:`test-suite` for more info. There are a bunch of other tests that are
+run by the CI on merge requests, you can run those locally with ::
+
+  $> sudo ninja -C builddir check
+
+So it always pays to run that before submitting. This will also run the code
+through valgrind and pick up any memory leaks.
+
+.. _contributing_submitting_code:
+
 ------------------------------------------------------------------------------
 Submitting Code
 ------------------------------------------------------------------------------
@@ -26,32 +160,80 @@ Any patches should be sent via a Merge Request (see the `GitLab docs
 in the `libinput GitLab instance hosted by freedesktop.org
 <https://gitlab.freedesktop.org/libinput/libinput>`_.
 
-To submit a merge request, you need to
+.. note:: freedesktop.org's GitLab instance has restrictions to prevent Spam
+          and you cannot fork libinput until you have successfully
+          `applied for fork permissions <https://gitlab.freedesktop.org/freedesktop/freedesktop/-/wikis/home>`_.
+
+Below are the steps required to submit a merge request. They do not
+replace `learning git <https://git-scm.com/doc>`__ but they should be
+sufficient to make some of the more confusing steps obvious.
 
 - `Register an account <https://gitlab.freedesktop.org/users/sign_in>`_ in
-  the freedesktop.org GitLab instance.
-- `Fork libinput <https://gitlab.freedesktop.org/libinput/libinput/forks/new>`_
-  into your username's namespace
-- Get libinput's main repository: ::
+  the freedesktop.org GitLab instance and
+  `apply for fork permissions <https://gitlab.freedesktop.org/freedesktop/freedesktop/-/wikis/home>`_.
+- `Fork libinput <https://gitlab.freedesktop.org/libinput/libinput/-/forks/new>`_
+  into your username's namespace. Select public visibility.
+- Get libinput's main repository. git will call this repository ``origin``. ::
 
     git clone https://gitlab.freedesktop.org/libinput/libinput.git
 
 - Add the forked git repository to your remotes (replace ``USERNAME``
-  with your username): ::
+  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
 
-- Push your changes to your fork: ::
+- Create a new branch and commit your changes to that branch. ::
 
-    git push gitlab BRANCHNAME
+    git switch -C mynewbranch
+    # edit files, make changes
+    git add file1 file2
+    git commit -s
+    # edit commit message in the editor
 
-- Submit a merge request. The URL for a merge request is: ::
+  Replace ``mynewbranch`` (here and in the commands below) with a meaningful
+  name. See :ref:`contributing_commit_messages` for details on the commit
+  message format.
+
+- Push your changes to your fork and submit a merge request ::
+
+    git push gitlab mynewbranch
+
+  This command will print the URL to file a merge request, you then only
+  have to click through. Alternatively you can go to:
 
     https://gitlab.freedesktop.org/USERNAME/libinput/merge_requests
 
-  Select your branch name to merge and ``libinput/libinput`` ``master`` as target branch.
+  Select your branch name to merge and ``libinput/libinput`` ``main`` as target branch.
+
+- Verify that the CI completes successfully by visiting the merge request
+  page. A successful pipeline shows only green ticks, failure is indicated
+  by a red cross or a yellow exclamation mark (see
+  the `GitLab Docs
+  <https://docs.gitlab.com/ee/ci/pipelines/#pipeline-mini-graphs>`__). For
+  details about the failures, click on the failed jobs in the pipelines
+  and/or click the ``Expand`` button in the box for the test summaries.
+
+  A merge request without a successful pipeline may never be looked at by a
+  maintainer.
+
+- If changes are requested by the maintainers, please **amend** the
+  commit(s) and **force-push** the updated branch. ::
+
+    # edits in file foo.c
+    git add foo.c
+    git commit --amend
+    git push -f gitlab mynewbranch
+
+  A force-push will re-trigger the CI and notify the merge request that new
+  changes are available.
+
+  If the branch contains more than one commit, please look at
+  `git interactive rebases
+  <https://git-scm.com/book/en/v2/Git-Tools-Rewriting-History>`__
+  to learn how to change multiple commits, or squash new changes into older
+  commits.
 
 ------------------------------------------------------------------------------
 Commit History
@@ -92,23 +274,12 @@ describes the change. For example: ::
 If in doubt what prefix to use, look at other commits that change the
 same file(s) as the patch being sent.
 
+.. _contributing_commit_messages:
+
 ------------------------------------------------------------------------------
 Commit Messages
 ------------------------------------------------------------------------------
 
-Read `on commit messages <http://who-t.blogspot.de/2009/12/on-commit-messages.html>`_
-as a general guideline on what commit messages should contain.
-
-Commit messages **should** contain a **Signed-off-by** line with your name
-and email address. If you're not the patch's original author, you should
-also gather S-o-b's by them (and/or whomever gave the patch to you.) The
-significance of this is that it certifies that you created the patch, that
-it was created under an appropriate open source license, or provided to you
-under those terms. This lets us indicate a chain of responsibility for the
-copyright status of the code.
-
-We won't reject patches that lack S-o-b, but it is strongly recommended.
-
 When you re-send patches, revised or not, it would be very good to document the
 changes compared to the previous revision in the commit message and/or the
 merge request. If you have already received Reviewed-by or Acked-by tags, you
@@ -116,12 +287,27 @@ should evaluate whether they still apply and include them in the respective
 commit messages. Otherwise the tags may be lost, reviewers miss the credit they
 deserve, and the patches may cause redundant review effort.
 
+If your commit solves a GitLab issue, add a ``Closes:`` tag followed by the
+issue number at the end of your commit message. For example: ::
+
+  Closes: #974
+
+If your commit fixes an issue introduced by another commit, use a ``Fixes`` tag
+followed by the first 12 characters of the SHA-1 ID and the commit one line
+summary at the end of your commit message. For example: ::
+
+  Fixes: 123456789012 ("The commit that caused the issue")
+
+For further reading, please see
+`'on commit messages' <http://who-t.blogspot.de/2009/12/on-commit-messages.html>`_
+as a general guideline on what commit messages should contain.
+
 ------------------------------------------------------------------------------
 Coding Style
 ------------------------------------------------------------------------------
 
 Please see the `CODING_STYLE.md
-<https://gitlab.freedesktop.org/libinput/libinput/blob/master/CODING_STYLE.md>`_
+<https://gitlab.freedesktop.org/libinput/libinput/blob/main/CODING_STYLE.md>`_
 document in the source tree.
 
 ------------------------------------------------------------------------------
@@ -161,13 +347,75 @@ process, even if you use other clients to track the list of available
 patches.
 
 ------------------------------------------------------------------------------
-Code of Conduct
+Failed pipeline errors
 ------------------------------------------------------------------------------
 
-As a freedesktop.org project, libinput follows the `freedesktop.org
-Contributor Covenant <https://www.freedesktop.org/wiki/CodeOfConduct>`_.
+After submitting your merge request to GitLab, you might receive an email
+informing you that your pipeline failed.
 
-Please conduct yourself in a respectful and civilised manner when
-interacting with community members on mailing lists, IRC, or bug trackers.
-The community represents the project as a whole, and abusive or bullying
-behaviour is not tolerated by the project.
+Visit your merge request page and check the `pipeline mini graph
+<https://docs.gitlab.com/ee/ci/pipelines/#pipeline-mini-graphs>`_ to know which
+step failed.
+
+Follow the appropriate section to fix the errors.
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Committed gitlab-ci.yml differs from generated gitlab-ci.yml. Please verify
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+When your merge request modifies the CI templates, you might see this error
+mainly due two reasons: the wrong file was modified and/or
+``ci-fairy generate-template`` wasn't run.
+
+``.gitlab-ci.yaml`` is auto generated, changes should be made in:
+
+- ``.gitlab-ci/ci.template``
+
+- ``.gitlab-ci/config.yaml``
+
+Once the changes are ready, run
+`ci-fairy <https://freedesktop.pages.freedesktop.org/ci-templates/ci-fairy.html#templating-gitlab-ci-yml>`_
+to update ``.gitlab-ci.yaml``: ::
+
+  ci-fairy generate-template
+
+Finally, force-push you changes. See :ref:`contributing_submitting_code` for
+more details.
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Build errors
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Usually, checking the CI log is enough to catch this errors. However, your merge
+request is built using different configurations you might have not tested.
+
+In order to fix this kind of problems, you can compile libinput using the same
+flags used by the CI.
+
+For example, if an error is found in the ``build-no-libwacom`` step, open the
+log and search the build options: ::
+
+  [...]
+  + rm -rf 'build dir'
+  + meson 'build dir' -Dlibwacom=false
+  The Meson build system
+  [...]
+
+Use the same flags to fix the issue and force-push you changes. See
+:ref:`contributing_submitting_code` for more details.
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Test errors
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The test suite is run for your merge request to check for bugs, regressions and
+memory leaks among other issues.
+
+Open the CI error log and search for a message similar to: ::
+
+  :: Failure: ../test/test-touchpad.c:465: touchpad_2fg_scroll_slow_distance(synaptics-t440)
+
+See :ref:`test-suite` to learn how to run the failing tests.
+
+Once the tests are fixed, force-push you changes. See
+:ref:`contributing_submitting_code` for more details.

doc/user/dependencies.rst

@@ -0,0 +1,21 @@
+.. warning:: The package lists are autogenerated from the `CI <https://gitlab.freedesktop.org/libinput/libinput/-/tree/master/.gitlab-ci.yml>`_.
+
+- Fedora: ::
+
+    dnf install @FEDORA_PACKAGES@
+
+- Ubuntu: ::
+
+    apt install @UBUNTU_PACKAGES@
+
+- Debian: ::
+
+    apt install @DEBIAN_PACKAGES@
+
+- Arch: ::
+
+    pacman -S @ARCH_PACKAGES@
+
+- Alpine: ::
+
+    apk add @ALPINE_PACKAGES@

doc/user/development.rst

@@ -36,6 +36,7 @@ Topics below explain some behaviors of libinput.
    normalization-of-relative-motion.rst
    seats.rst
    timestamps.rst
+   wheel-api.rst
 
 .. _hacking_on_libinput:
 
@@ -46,7 +47,6 @@ Hacking on libinput
 .. toctree::
    :maxdepth: 1
 
-   contributing.rst
    architecture
    test-suite.rst
    pointer-acceleration.rst

doc/user/device-configuration-via-udev.rst

@@ -68,10 +68,13 @@ MOUSE_WHEEL_CLICK_ANGLE
 
 
 Below is an example udev rule to assign "seat1" to a device from vendor
-0x012a with the model ID of 0x034b. ::
+``0x012a`` with the model ID of ``0x034b``. ::
 
-     ACTION=="add|change", KERNEL=="event[0-9]*", ENV{ID_VENDOR_ID}=="012a", \
-     ENV{ID_MODEL_ID}=="034b", ENV{ID_SEAT}="seat1"
+   $ cat /etc/udev/rules.d/99-my-device-is-on-seat1.rules
+     ACTION!="remove", KERNEL=="event[0-9]*", \
+     ENV{ID_VENDOR_ID}=="012a", \
+     ENV{ID_MODEL_ID}=="034b", \
+     ENV{ID_SEAT}="seat1"
 
 
 
@@ -96,37 +99,13 @@ handle some combinations for historical reasons.
 
 Below is an example udev rule  to remove an **ID_INPUT_TOUCHPAD** setting
 and change it into an **ID_INPUT_TABLET** setting. This rule would apply
-for a device with the vendor/model ID of 012a/034b. ::
+for a device with the vendor/model ID of ``012a``/``034b``. ::
 
-     ACTION=="add|change", KERNEL=="event[0-9]*", ENV{ID_VENDOR_ID}=="012a", \
-     ENV{ID_MODEL_ID}=="034b", ENV{ID_INPUT_TOUCHPAD}="", ENV{ID_INPUT_TABLET}="1"
-
-
-
-.. _ignoring_devices:
-
-------------------------------------------------------------------------------
-Ignoring specific devices
-------------------------------------------------------------------------------
-
-If a device has the **LIBINPUT_IGNORE_DEVICE** udev property set to any
-value but "0", that device is not initialized by libinput. For a context
-created with **libinput_udev_create_context()**, the device is silently ignored
-and never shows up. If the device is added with **libinput_path_add_device()**
-to a context created with **libinput_path_create_context()**, adding the device
-will fail and return NULL (see that function's documentation for more
-information).
-
-If the property value is exactly "0", then the property is considered unset
-and libinput initializes the device normally.
-
-This property should be used for devices that are correctly detected as
-input devices (see :ref:`udev_device_type`) but that should not be used by
-libinput. It is recommended that devices that should not be handled as input
-devices at all unset the **ID_INPUT** and related properties instead. The
-**LIBINPUT_IGNORE_DEVICE** property signals that only libinput should
-ignore this property but other parts of the stack (if any) should continue
-treating this device normally.
+   $ cat /etc/udev/rules.d/99-my-device-is-a-tablet.rules
+     ACTION!="remove", KERNEL=="event[0-9]*", \
+     ENV{ID_VENDOR_ID}=="012a", \
+     ENV{ID_MODEL_ID}=="034b", \
+     ENV{ID_INPUT_TOUCHPAD}="", ENV{ID_INPUT_TABLET}="1"
 
 
 .. _model_specific_configuration:
@@ -150,7 +129,7 @@ The property **LIBINPUT_MODEL_LENOVO_X220_TOUCHPAD_FW81** may be set by a
 user in a local hwdb file. This property designates the touchpad on a Lenovo
 x220 with a touchpad firmware version 8.1. When this firmware version is
 installed, the touchpad is imprecise. The touchpad device does not send
-continuos x/y axis position updates, a behavior also observed on its
+continuous x/y axis position updates, a behavior also observed on its
 successor model, the Lenovo x230 which has the same firmware version. If the
 above property is set, libinput adjusts its behavior to better suit this
 particular model.
@@ -263,4 +242,4 @@ Modifying the hwdb
              device-specific quirks must go in to the :ref:`device-quirks` system.
 
 For information about older libinput versions, please see the documentation
-for your version avaialable in: https://wayland.freedesktop.org/libinput/doc/
+for your version available in: https://wayland.freedesktop.org/libinput/doc/

doc/user/device-quirks.rst

@@ -6,14 +6,14 @@ Device quirks
 
 libinput requires extra information from devices that is not always readily
 available. For example, some touchpads are known to have jumping cursors
-under specific conditions. libinput ships a set of files containting the
+under specific conditions. libinput ships a set of files containing the
 so-called model quirks to provide that information. Model quirks are usually
 installed under ``/usr/share/libinput/<filename>.quirks`` and are standard
 ``.ini`` files. A file may contain multiple section headers (``[some
-identifier]``) followed by one or more ``MatchFoo=Bar`` directives, followed by
-at least one of ``ModelFoo=1`` or ``AttrFoo=bar`` directive. See the
-``quirks/README.md`` file in the libinput source repository for more details on
-their contents.
+identifier]``) followed by one or more :ref:`MatchFoo=Bar <device-quirks-matches>`
+directives, followed by at least one of ``ModelFoo=1`` or ``AttrFoo=bar`` directive.
+See the ``quirks/README.md`` file in the libinput source repository for more
+details on their contents.
 
 .. warning:: Model quirks are internal API and may change at any time. No
              backwards-compatibility is guaranteed.
@@ -71,7 +71,7 @@ devices. ::
 
      $ libinput quirks list /dev/input/event19
      $ libinput quirks list /dev/input/event0
-     AttrLidSwitchReliability=reliable
+     AttrLidSwitchReliability=unreliable
 
 The device `event19` does not have any quirks assigned.
 
@@ -112,11 +112,11 @@ output.
 .. _device-quirks-list:
 
 ------------------------------------------------------------------------------
-List of supported device quirks
+List of currently available device quirks
 ------------------------------------------------------------------------------
 
 This list is a guide for developers to ease the process of submitting
-patches upstream. This section shows device quirks supported in
+patches upstream. This section shows device quirks currently available in
 |git_version|.
 
 .. warning:: Quirks are internal API and may change at any time for any reason.
@@ -147,6 +147,21 @@ ModelBouncingKeys
     timestamps can not be relied upon.
 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.
+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
@@ -157,15 +172,20 @@ AttrTouchSizeRange=N:M, AttrPalmSizeThreshold=O
     Specifies the touch size required to trigger a press (N) and to trigger
     a release (M). O > N > M. See :ref:`touchpad_touch_size_hwdb` for more
     details.
-AttrTouchPressureRange=N:M, AttrPalmPressureThreshold=O, AttrThumbPressureThreshold=P
+    An AttrPalmSizeThreshold of zero unsets any threshold that has been
+    inherited from another quirk.
+AttrPressureRange=N:M, AttrPalmPressureThreshold=O, AttrThumbPressureThreshold=P
     Specifies the touch pressure required to trigger a press (N) and to
     trigger a release (M), when a palm touch is triggered (O) and when a
     thumb touch is triggered (P). O > P > N > M. See
     :ref:`touchpad_pressure_hwdb` for more details.
-AttrLidSwitchReliability=reliable|write_open
-    Indicates the reliability of the lid switch. This is a string enum. Do not
-    use "reliable" for any specific device. Very few devices need this, if in
-    doubt do not set. See :ref:`switches_lid` for details.
+    An AttrPalmPressureThreshold of zero unsets any threshold that has been
+    inherited from another quirk.
+AttrLidSwitchReliability=reliable|unreliable|write_open
+    Indicates the reliability of the lid switch. This is a string enum.
+    Very few devices need this, if in doubt do not set. See :ref:`switches_lid`
+    for details. libinput 1.21.0 changed the default from unreliable to
+    reliable, which may be removed from local overrides.
 AttrKeyboardIntegration=internal|external
     Indicates the integration of the keyboard. This is a string enum.
     Generally only needed for USB keyboards.
@@ -173,10 +193,52 @@ AttrTPKComboLayout=below
     Indicates the position of the touchpad on an external touchpad+keyboard
     combination device. This is a string enum. Don't specify it unless the
     touchpad is below.
-AttrEventCodeDisable=EV_ABS;BTN_STYLUS;EV_KEY:0x123;
-    Disables the evdev event type/code tuples on the device. Entries may be
+AttrEventCode=+EV_ABS;-BTN_STYLUS;+EV_KEY:0x123;
+    Enables or disables the evdev event type/code tuples on the device. The prefix
+    for each entry is either '+' (enable) or '-' (disable). Entries may be
     a named event type, or a named event code, or a named event type with a
     hexadecimal event code, separated by a single colon.
+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.
+AttrTabletSmoothing=1|0
+    Enables (1) or disables (0) input smoothing for tablet devices. Smoothing is enabled
+    by default, except on AES devices.
+
+.. _device-quirks-matches:
+
+------------------------------------------------------------------------------
+List of currently available matches
+------------------------------------------------------------------------------
+
+``Match*`` statements are how quirks are assigned to a device. Quirks with multiple
+match statements must match all of those to apply.
+
+.. warning:: Quirks are internal API and may change at any time for any reason.
+             No guarantee is given that any ``Match`` statement below works on
+             your version of libinput.
+
+MatchName, MatchUniq
+    Match on the ``NAME`` or ``UNIQ`` udev property on this device. These properties
+    are typically derived from the device's kernel name or uniq but may be overridden
+    by a udev rule. These matches use ``fnmatch()`` globs.
+MatchBus
+    A lower-case bus name. Currently supported are ``usb``, ``bluetooth``, ``ps2``,
+    ``rmi``, ``i2c``, and ``spi``.
+MatchVendor, MatchProduct, MatchVersion
+    The hexadecimal 4-digit vendor ID, product ID or driver version as
+    exported, uppercase with a ``0x`` prefix, e.g. ``0x12AB```.
+MatchDMIModalias, MatchDeviceTree
+    An ``fnmatch()`` glob for the DMI modalias or the DeviceTree ``compatible`` string.
+    See ``/sys/class/dmi/id/modalias`` and ``/sys/firmware/devicetree/base/compatible``.
+MatchUdevType
+    One of ``touchpad``, ``mouse``, ``pointingstick``, ``keyboard``, ``joystick``,
+    ``tablet``, ``tablet-pad``. Matches the corresponding ``ID_INPUT_*`` udev
+    property.

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/drag-3fg.rst

@@ -0,0 +1,40 @@
+.. _drag_3fg:
+
+==============================================================================
+Three-finger drag
+==============================================================================
+
+Three-finger drag is a feature available on touchpads that emulates logical
+button presses if three fingers are moving on the touchpad.
+
+Three-finger drag is independent from :ref:`tapping` though some specific
+behaviors may change when both features are enabled. For example, with
+tapping *disabled* a three-finger gesture will virtually always be a three-finger
+drag. With tapping *enabled* a three finger gesture may be a three finger drag
+and a short delay is required to disambiguate between the two.
+
+
+The exact behavior of three-finger drag is implementation defined and may
+subtly change. As a general rule, the following constraints can be expected:
+
+- three fingers down and movement trigger a button down and subsequent motion
+  events (i.e. a drag)
+- releasing one finger while keeping two fingers down will keep the drag
+  and *not* switch to :ref:`twofinger_scrolling`.
+- releasing two fingers while keeping one finger down will end the drag
+  (and thus release the button) and switch to normal pointer motion
+- releasing all three fingers and putting three fingers back on the touchpad
+  immediately will keep the drag (i.e. behave as if the fingers were
+  never lifted)
+
+  - if tapping is enabled: a three finger tap immediately after a three-finger
+    drag will *not* tap, the user needs to wait past the timeout to
+    three-finger tap
+
+- releasing all three fingers and putting one or two fingers back on
+  the touchpad will end the drag (and thus release the button)
+  and proceed with pointer motion or two-finger scrolling, if applicable
+
+  - if tapping is enabled: a one or two finger tap immediately after a
+    three-finger drag will trigger a one or two finger tap. The user does
+    not have to wait past the drag release timeout

doc/user/faqs.rst

@@ -42,6 +42,18 @@ This is a symptom of an invalid trackpoint multiplier. These devices need
 pointer acceleration accordingly. See :ref:`trackpoint_range` for a detailed
 explanation.
 
+.. _faq_pointer_acceleration:
+
+------------------------------------------------------------------------------
+Why is libinput's pointer acceleration worse than synaptics/evdev
+------------------------------------------------------------------------------
+
+This is a known problem affecting some devices and/or use-case but the exact
+cause is still unknown. It may be a device-specific issue, it may be a bug
+in libinput's acceleration code, it may be a disagreement about how pointer
+acceleration should feel. Unfortunately this is something that affected
+users need to investigate and analyze.
+
 .. _faq_enable_tapping:
 
 ------------------------------------------------------------------------------
@@ -206,7 +218,7 @@ Why don't synclient and syndaemon work with libinput?
 
 Synclient and syndaemon rely on X input device properties that are specific
 to the xf86-input-synaptics X.Org input driver. Both were written when the
-synaptics driver was the only commmon touchpad driver in existence. They
+synaptics driver was the only common touchpad driver in existence. They
 assume that if the properties aren't available, no touchpad is available
 either. The xf86-input-libinput X.Org input driver does not export these
 driver-specific properties, synclient/syndaemon will thus not detect the
@@ -275,28 +287,28 @@ details on the hwdb and how to modify it locally.
 .. _faq_timer_offset:
 
 ------------------------------------------------------------------------------
-What causes the "timer offset negative" warning?
+What causes the "your system is too slow" warning?
 ------------------------------------------------------------------------------
 
 libinput relies on the caller to call **libinput_dispatch()** whenever data is
-available on the epoll-fd. Doing so will process the state of all devices
-and can trigger some timers to be set (e.g. palm detection, tap-to-click,
-disable-while-typing, etc.). Internally, libinput's time offsets are always
-based on the event time of the triggering event.
+available. **libinput_dispatch()** will process the state of all devices,
+including some time-sensitive features (e.g. palm detection, tap-to-click,
+disable-while-typing, etc.).
 
-For example, a touch event with time T may trigger a timer for the time T +
-180ms. When setting a timer, libinput checks the wall clock time to ensure
-that this time T + offset is still in the future. If not, the warning is
-logged.
+If the time between the event and the call to **libinput_dispatch()**
+is excessive, those features may not work correctly. For example, a delay in
+touch event processing may cause wrong or missing tap-to-click events or
+a palm may not be detected correctly.
 
 When this warning appears, it simply means that too much time has passed
-between the event occurring (and the epoll-fd triggering) and the current
-time. In almost all cases this is an indication of the caller being
-overloaded and not handling events as speedily as required.
+between the event occurring and the current time. In almost all cases this
+is an indication of the caller being overloaded and not handling events as
+speedily as required.
 
 The warning has no immediate effect on libinput's behavior but some of the
-functionality that relies on the timer may be impeded (e.g. palms are not
-detected as they should be).
+functionality that relies on the timer may be impeded. This is not a bug in
+libinput. libinput does not control how quickly **libinput_dispatch()** is
+called.
 
 .. _faq_wayland:
 
@@ -312,15 +324,67 @@ direct connection. As a technical analogy, the question is similar to "is
 glibc required for HTTP", or (stretching the analogy a bit further) "Is a
 pen required to write English". No, it isn't.
 
-You can use libinput without a Wayland compositor, you can
-write a Wayland compositor without libinput. Until 2018 the most common use
-of libinput is with the X.Org X server through the xf86-input-libinput
-driver. As Wayland compositors become more commonplace they will eventually
-overtake X.
+You can use libinput without a Wayland compositor, you can write a Wayland
+compositor without libinput. On most major distributions, libinput is the
+standard input stack used with the X.Org X server through the
+xf86-input-libinput driver.
 
 So why "for your use-case - probably"?  All general-purpose Wayland
-compositors use libinput for their input stack.  Wayland compositors that
+compositors use libinput for their input stack. Wayland compositors that
 are more specialized (e.g. in-vehicle infotainment or IVI) can handle input
 devices directly but the compositor you want to use
 on your desktop needs an input stack that is more complex. And right now,
 libinput is the only input stack that exists for this use-case.
+
+.. _faq_separate_contexts:
+
+------------------------------------------------------------------------------
+Can I write a program to make libinput do $FOO
+------------------------------------------------------------------------------
+
+A common question is whether it's possible to write a program that can change
+libinput's behavior - specifically the libinput that is used inside the
+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.
+
+.. 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.
+
+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?
+------------------------------------------------------------------------------
+
+No, or at least, not as a libinput option.
+
+When using a mouse, libinput notifies callers about physical scroll wheel
+movement. When using another device, libinput notifies scroll in scroll units.
+
+It is up to the caller to transform those events into a number of pixels to
+scroll and, if desired, provide a way to adjust scroll speed.
+
+This transformation cannot be done in libinput because it may depend on context
+only known by the caller. For example, a caller may want to scroll faster
+depending on how many pages a document has or depending on the widget that
+receives the scroll events.

doc/user/features.rst

@@ -5,7 +5,7 @@ libinput Features
 ==============================================================================
 
 Below is a list of features supported by libinput. The availability of
-features usually depends on the device type and a device's capabilties.
+features usually depends on the device type and a device's capabilities.
 Not all features are user-configurable, some rely on :ref:`device-quirks`
 to be useful.
 
@@ -22,6 +22,7 @@ to be useful.
    scrolling.rst
    t440-support.rst
    tapping.rst
+   drag-3fg.rst
    tablet-support.rst
    switches.rst
    touchpad-pressure.rst

doc/user/gestures.rst

@@ -20,9 +20,10 @@ finger belonging to this gesture is lifted.
 
 A single gesture cannot change the finger count. For example, if a user
 puts down a fourth finger during a three-finger swipe gesture, libinput will
-end the three-finger gesture and, if applicable, start a four-finger swipe
-gesture. A caller may however decide that those gestures are semantically
-identical and continue the two gestures as one single gesture.
+end (cancel) the three-finger gesture and, if applicable, start a
+four-finger swipe gesture. A caller may however decide that those gestures
+are semantically identical and continue the two gestures as one single
+gesture.
 
 .. _gestures_pinch:
 
@@ -73,6 +74,227 @@ gesture into an action or limit a gesture to specific directions only.
 The illustration above shows a vertical three-finger swipe. The coordinates
 provided during the gesture are the movements of the logical center.
 
+.. _gestures_hold:
+
+------------------------------------------------------------------------------
+Hold gestures
+------------------------------------------------------------------------------
+
+A hold gesture is one where the user places one or more fingers on the
+device without significant movement. The exact conditions when a hold gesture
+transitions to pointer motion, scrolling or other gestures
+are implementation-defined.
+
+The hold gesture is intended to allow for the implementation of two specific
+features:
+
+- where a two-finger scrolling starts kinetic scrolling in the caller, a
+  subsequent hold gesture can be used to stop that kinetic scroll motion,
+  and
+- hold-to-trigger interactions where the interaction could be a click, a
+  context menu, or some other context-specific interaction.
+
+Hold gestures have three potential logical states:
+
+- **begin**: one or more fingers are placed on the device at the same time
+- **end**: all fingers are removed and the device enters a neutral logical state
+- **end(cancelled)**: all fingers are part of a known interaction and the
+  currenthold gesture is no longer active. This may also occurs when
+  switching between hold gestures with different finger counts.
+
+.. note:: By definition, a hold gesture does not move and thus no coordinate
+          updates are available.
+
+For example, a user that puts one finger, then a second finger down and
+releases them later may trigger the following event sequence:
+
+=============  ============  ============
+Action         Event         Finger count
+=============  ============  ============
+Finger 1 down  <no event>
+Finger 2 down  **begin**     2
+Finger 2 up    **end**       2
+Finger 1 up    <no event>
+=============  ============  ============
+
+A hold gesture may by be **cancelled**. This occurs
+when the hold gesture changes into some other interaction and should no
+longer be considered the current hold gesture. A **end(cancelled)** event
+applies to the whole gesture (all fingers). For example, a pointer motion on
+a touchpad may trigger this sequence:
+
++-------------------+-----------------------+
+| Action            |  Event                |
++===================+=======================+
+| | Finger 1 down   | | **hold begin**      |
++-------------------+-----------------------+
+| | Finger 1 motion | | **hold cancel**     |
+| |                 | | **pointer motion**  |
++-------------------+-----------------------+
+| | Finger 1 motion | | **pointer motion**  |
++-------------------+-----------------------+
+| | Finger 1 up     | | *no event*          |
++-------------------+-----------------------+
+
+.. note:: Many interactions with a touchpad will start with a hold
+          gesture that is then cancelled as that gesture turns into e.g.
+          pointer motion. A caller **must** handle hold gesture
+          cancellations correctly.
+
+A two-finger scroll motion on a touchpad may trigger this sequence:
+
++------------------------+---------------------+--------------+
+| Action                 |  Event              | Finger count |
++========================+=====================+==============+
+| | Finger 1 down        | | **hold begin**    | | 1          |
++------------------------+---------------------+--------------+
+| | Finger 2 down        | | **hold cancel**   | | 1          |
+| |                      | | **hold begin**    | | 2          |
++------------------------+---------------------+--------------+
+| | Finger 1+2 motion    | | **hold cancel**   | | 2          |
+| |                      | | **pointer axis**  | |            |
++------------------------+---------------------+--------------+
+| | Finger 1+2 motion    | | **pointer axis**  |              |
++------------------------+---------------------+--------------+
+| | Finger 1 up          | | **pointer axis**  |              |
+| | Finger 2 up          | | (scroll stop)     |              |
++------------------------+---------------------+--------------+
+
+A three-finger-swipe on a touchpad may trigger this sequence:
+
++---------------------+---------------------+--------------+
+| Action              |  Event              | Finger count |
++=====================+=====================+==============+
+| | Finger 1 down     |  | **hold begin**   | | 1          |
++---------------------+---------------------+--------------+
+| | Finger 2 down     | | **hold cancel**   | | 1          |
+| |                   | | **hold begin**    | | 2          |
++---------------------+---------------------+--------------+
+| | Finger 3 down     | | **hold cancel**   | | 2          |
+| |                   | | **hold begin**    | | 3          |
++---------------------+---------------------+--------------+
+| | Finger motion     | | **hold cancel**   | | 3          |
+| |                   | | **swipe begin**   | | 3          |
++---------------------+---------------------+--------------+
+| | Finger motion     | | **swipe update**  | | 3          |
++---------------------+---------------------+--------------+
+| | Finger 1 up       | | **swipe end**     | | 3          |
+| | Finger 2 up       | |                   | |            |
+| | Finger 3 up       | |                   | |            |
++---------------------+---------------------+--------------+
+
+Single-finger hold gestures
+...........................
+
+libinput uses implementation-defined timeouts based on other interactions
+to determine whether a single-finger hold gestures should start. In other
+words, a caller **must not** rely on a hold gesture always being triggered
+as soon as a single finger is placed on the touchpad. This is true for any
+hold gesture but especially so for single-finger hold gestures.
+
+Hold gestures with a single finger are prone to being extremely short-lived.
+On many devices it is impossible to hold a finger still enough for there to
+be no pointer motion events, even if those deltas are miniscule. Changing
+movement thresholds to rely on hold gestures would reduce device
+responsiveness.
+
+It is thus the responsibility of the caller to determine where hold gestures
+transition in and out of other interactions. For example, a two-finger hold
+may produce a cancelled single-finger hold gesture first:
+
++--------------------+----------------------+--------------+--------------+
+| Action             |  Event               | Finger count | Notes        |
++====================+======================+==============+==============+
+| | Finger 1 down    | | **hold begin**     | | 1          |              |
++--------------------+----------------------+--------------+--------------+
+| | Finger 1 motion  | | **hold cancel**    | | 1          | | tiny deltas|
+| |                  | | **pointer motion** | |            | |            |
++--------------------+----------------------+--------------+--------------+
+| | Finger 2 down    | | **hold begin**     | | 2          |              |
++--------------------+----------------------+--------------+--------------+
+| | Finger 1 up      | | **hold end**       | |            |              |
+| | Finger 2 up      | |                    | |            |              |
++--------------------+----------------------+--------------+--------------+
+
+Note how the second hold gesture started with a finger count of 2 - without
+the user ever lifting the first finger. Cancellation of hold gesture does
+not imply the user has lifted a finger.
+
+A hold gesture may start after a previous gesture completed. For example, a
+single finger move-and-hold may trigger different sequences for the same
+user interaction:
+
++--------------------+---------------------+-------------------+--------------+
+| Action             |  Device 1           | Device 2          | Notes        |
++====================+=====================+===================+==============+
+| | Finger 1 down    | | **hold begin**    |  | **hold begin** |              |
++--------------------+---------------------+-------------------+--------------+
+| | Finger 1 motion  | | **hold cancel**   |                   | | tiny deltas|
+|                    | | **pointer motion**|                   | |            |
++--------------------+---------------------+-------------------+--------------+
+|                    | |  **hold begin**   |                   |              |
++--------------------+---------------------+-------------------+--------------+
+| |  Finger 1 up     | |  **hold end**     | |  **hold end**   |              |
++--------------------+---------------------+-------------------+--------------+
+
+A caller that wants to use hold gestures must thus be able to infer the same
+interaction based on a stream of pointer motion events with small deltas.
+
+libinput may start a new hold begin gesture once the pointer stops moving.
+The time between the last pointer motion event and the hold begin event is
+implementation-defined.
+
+
+Hold gestures and thumb/palm detection
+......................................
+
+Thumb and palm detection effectively remove touches from being counted
+towards an interaction, see :ref:`thumb_detection` and
+:ref:`palm_detection` for details.
+
+In the context of hold gestures, thumbs and palms are treated by libinput as
+if the finger was removed from the device. Where other non-thumb/non-palm
+fingers remain on the device, an **hold update** event is sent. Otherwise,
+the hold gesture terminates with a **hold cancel** event.
+
+Notably, libinput's thumb and palm detection is not a simple boolean per
+touch but specific to the state of that touch in the overall context. For
+example, a touch may be a thumb for tapping but not for clickfinger
+interactions. A caller must not infer the number of physical fingers from
+the hold gesture.
+
+Likewise, libinput may classify a finger as thumb in the same hardware event
+as a new finger is placed on the touchpad. In that case, the hold gesture
+**may** continue as one-finger gesture despite there being two physical
+touch points.
+
+Information to determine whether a touch is a thumb or a palm may not be
+available until some time into an interaction. Thus very short brushes
+of the touchpad by a palm may trigger a **hold begin** followed by an
+immediate **hold end** as libinput lacks sufficient information to identify
+the touch as thumb/palm and send the corresponding **hold cancel**
+event. A caller must not assume that a hold gesture always represents a
+valid finger down.
+
+Hold gestures and tap-to-click
+..............................
+
+:ref:`tapping` is the feature that enables short-lived touches to trigger
+button presses.
+
+.. warning:: Summary: do not use hold gestures to do your own tap-to-click
+             implementation
+
+In the context of hold gestures, tap-to-click cancels current hold gestures
+and a finger dragging (see :ref:`tapndrag`) does not begin a hold
+gesture. Where tap-to-click is disabled a tap-like gesture may create
+**hold begin** followed by a **hold end** event. Callers **must not** use
+hold gestures for their own tap-to-click implementation as the data is not
+reliable enough. libinput may change internal timeouts and thresholds
+depending on whether tap-to-click is enabled and the hold gesture event may
+not match touch sequences that a user would expect to be a tap-to-click
+interaction.
+
 .. _gestures_touchscreens:
 
 ------------------------------------------------------------------------------

doc/user/ignoring-devices.rst

@@ -0,0 +1,36 @@
+.. _ignoring_devices:
+
+==============================================================================
+Ignoring specific devices
+==============================================================================
+
+If a device has the **LIBINPUT_IGNORE_DEVICE** udev property set to any
+value but "0", that device is not initialized by libinput.
+For a context created with **libinput_udev_create_context()**, the device is
+silently ignored and never shows up. If the device is added with
+**libinput_path_add_device()** to a context created with
+**libinput_path_create_context()**, adding the device will fail and return NULL
+(see that function's documentation for more
+information).
+
+If the property value is exactly "0", then the property is considered unset
+and libinput initializes the device normally.
+
+This property should be used for devices that are correctly detected as
+input devices (see :ref:`udev_device_type`) but that should not be used by
+libinput. It is recommended that devices that should not be handled as input
+devices at all unset the **ID_INPUT** and related properties instead. The
+**LIBINPUT_IGNORE_DEVICE** property signals that only libinput should
+ignore this property but other parts of the stack (if any) should continue
+treating this device normally.
+
+Below is an example udev rule  to assign **LIBINPUT_IGNORE_DEVICE** to the
+device with the vendor/model ID of ``012a``/``034b``. ::
+
+  $ cat /etc/udev/rules.d/99-ignore-my-device.rules
+  ACTION!="remove", KERNEL=="event[0-9]*", \
+     ENV{ID_VENDOR_ID}=="012a", \
+     ENV{ID_MODEL_ID}=="034b", \
+     ENV{LIBINPUT_IGNORE_DEVICE}="1"
+
+See :ref:`udev_config` for more details on libinput's udev properties.

doc/user/incorrectly-enabled-hires.rst

@@ -0,0 +1,62 @@
+.. _incorrectly_enabled_hires:
+
+==============================================================================
+Incorrectly enabled high-resolution scroll
+==============================================================================
+
+Some devices might announce support for high-resolution scroll wheel by enabling
+``REL_WHEEL_HI_RES`` and/or ``REL_HWHEEL_HI_RES`` but never send a
+high-resolution scroll event.
+
+When the first low-resolution scroll event is received without any previous
+high-resolution event, libinput prints a bug warning with the text **"device
+supports high-resolution scroll but only low-resolution events have been
+received"** and a link to this page.
+
+.. note:: This warning will be printed only once
+
+In most cases this is a bug on the device firmware, the kernel driver or in a
+software used to create user-space devices through uinput.
+
+Once the bug is detected, libinput will start emulating high-resolution scroll
+events.
+
+------------------------------------------------------------------------------
+Detecting and fixing the issue
+------------------------------------------------------------------------------
+
+Events sent by a buggy device can be shown in the
+:ref:`libinput record <libinput-record>` output for the device. Notice that
+``REL_WHEEL_HI_RES`` and ``REL_HWHEEL_HI_RES`` are set but only ``REL_WHEEL``
+events are sent: ::
+
+    # Supported Events:
+    # Event type 0 (EV_SYN)
+    # Event type 1 (EV_KEY)
+    #   Event code 272 (BTN_LEFT)
+    # Event type 2 (EV_REL)
+    #   Event code 0 (REL_X)
+    #   Event code 1 (REL_Y)
+    #   Event code 6 (REL_HWHEEL)
+    #   Event code 8 (REL_WHEEL)
+    #   Event code 11 (REL_WHEEL_HI_RES)
+    #   Event code 12 (REL_HWHEEL_HI_RES)
+    [...]
+    quirks:
+    events:
+    - evdev:
+        - [  0,      0,   2,   8,       1] # EV_REL / REL_WHEEL                 1
+        - [  0,      0,   0,   0,       0] # ------------ SYN_REPORT (0) ---------- +0ms
+    - evdev:
+        - [  0,  15126,   2,   8,       1] # EV_REL / REL_WHEEL                 1
+        - [  0,  15126,   0,   0,       0] # ------------ SYN_REPORT (0) ---------- +15ms
+    - evdev:
+        - [  0,  30250,   2,   8,       1] # EV_REL / REL_WHEEL                 1
+        - [  0,  30250,   0,   0,       0] # ------------ SYN_REPORT (0) ---------- +15ms
+
+The issue can be fixed by adding a quirk to unset the ``REL_WHEEL_HI_RES`` and
+``REL_HWHEEL_HI_RES`` event codes: ::
+
+    AttrEventCode=-REL_WHEEL_HI_RES;-REL_HWHEEL_HI_RES;
+
+Please see :ref:`device-quirks` for details.

doc/user/index.rst

@@ -10,7 +10,10 @@
   faqs
   reporting-bugs
   troubleshooting
+  contributing
   development
+  lua-plugins
+  API documentation <@HTTP_DOC_LINK@/api/>
 
 
 ++++++++++++++++++++++++++++++
@@ -21,7 +24,7 @@ libinput is a library that provides a full input stack for display servers
 and other applications that need to handle input devices provided by the
 kernel.
 
-libinput provides device detection, event handling and abstraction so
+libinput provides device detection, event handling and abstraction to
 minimize the amount of custom input code the user of libinput need to
 provide the common set of functionality that users expect. Input event
 processing includes scaling touch coordinates, generating
@@ -34,14 +37,14 @@ driver than an application library. See :ref:`what_is_libinput` for more details
 Users and Developers
 --------------------
 
-Please use the side-bar to nagivate through the various documentation items.
+Please use the side-bar to navigate through the various documentation items.
 
 -----------------
 API documentation
 -----------------
 
 The API documentation is available here:
-    http://wayland.freedesktop.org/libinput/doc/latest/api/
+    https://wayland.freedesktop.org/libinput/doc/latest/api/
 
 .. note:: This documentation is generally only needed by authors of Wayland
 	  compositors or other developers dealing with input events directly.

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

@@ -4,10 +4,16 @@ if not sphinx.found()
 	error('Program "sphinx-build" not found or not executable. Try building with -Ddocumentation=false')
 endif
 
+yq = find_program('yq', required : false)
+if not yq.found()
+	warning('Program "yq" not found or not executable. Dependency list will not be built.')
+endif
+
 sphinx_config = configuration_data()
 sphinx_config.set('PROJECT_NAME', meson.project_name())
 sphinx_config.set('PROJECT_VERSION', meson.project_version())
 sphinx_config.set('BUILDDIR', meson.current_build_dir())
+sphinx_config.set('HTTP_DOC_LINK', doc_url)
 
 git_version_page = vcs_tag(command : ['git', 'log', '-1', '--format=%H'],
 			   fallback : 'unknown',
@@ -44,6 +50,7 @@ src_404s = [
 	[ 'faqs.rst', 'faq.html'],
 	[ 'features.rst', 'features.html'],
 	[ 'gestures.rst', 'gestures.html'],
+	[ 'incorrectly-enabled-hires.rst', 'incorrectly-enabled-hires.html'],
 	[ 'middle-button-emulation.rst', 'middle_button_emulation.html'],
 	[ 'normalization-of-relative-motion.rst', 'motion_normalization.html'],
 	[ 'palm-detection.rst', 'palm_detection.html'],
@@ -88,11 +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',
@@ -103,6 +112,7 @@ src_rst = files(
 	'svg/palm-detection.svg',
 	'svg/pinch-gestures.svg',
 	'svg/pinch-gestures-softbuttons.svg',
+	'svg/ptraccel-custom.svg',
 	'svg/ptraccel-linear.svg',
 	'svg/ptraccel-low-dpi.svg',
 	'svg/ptraccel-touchpad.svg',
@@ -112,8 +122,11 @@ src_rst = files(
 	'svg/software-buttons-thumbpress.svg',
 	'svg/software-buttons-visualized.svg',
 	'svg/swipe-gestures.svg',
+	'svg/tablet-area.svg',
 	'svg/tablet-axes.svg',
 	'svg/tablet-cintiq24hd-modes.svg',
+	'svg/tablet-eraser-invert.svg',
+	'svg/tablet-eraser-button.svg',
 	'svg/tablet-interfaces.svg',
 	'svg/tablet-intuos-modes.svg',
 	'svg/tablet-left-handed.svg',
@@ -132,15 +145,19 @@ src_rst = files(
 	'building.rst',
 	'button-debouncing.rst',
 	'clickpad-softbuttons.rst',
+	'clickpad-with-right-button.rst',
 	'contributing.rst',
 	'device-configuration-via-udev.rst',
 	'device-quirks.rst',
+	'drag-3fg.rst',
 	'faqs.rst',
 	'gestures.rst',
-	'index.rst',
+	'incorrectly-enabled-hires.rst',
+	'ignoring-devices.rst',
 	'middle-button-emulation.rst',
 	'normalization-of-relative-motion.rst',
 	'palm-detection.rst',
+	'lua-plugins.rst',
 	'pointer-acceleration.rst',
 	'reporting-bugs.rst',
 	'scrolling.rst',
@@ -162,27 +179,39 @@ src_rst = files(
 	'trackpoints.rst',
 	'trackpoint-configuration.rst',
 	'what-is-libinput.rst',
+	'wheel-api.rst',
 	'features.rst',
 	'development.rst',
 	'troubleshooting.rst',
 	'configuration.rst',
 )
 
-config_noop = configuration_data()
-# Set a dummy replacement to silence meson warnings:
-# meson.build:487: WARNING: Got an empty configuration_data() object and
-# 		   found no substitutions in the input file 'foo'. If you
-# 		   want to copy a file to the build dir, use the 'copy:'
-# 		   keyword argument added in 0.47.0
-config_noop.set('dummy', 'dummy')
 src_sphinx = []
 foreach f : src_rst
 	sf = configure_file(input: f,
 			    output: '@PLAINNAME@',
-			    configuration : config_noop)
+			    copy : true)
 	src_sphinx += [ sf ]
 endforeach
 
+configure_file(input: 'index.rst',
+	       output: 'index.rst',
+	       configuration: sphinx_config)
+
+dependencies_config = configuration_data()
+if yq.found()
+	distributions = ['fedora', 'ubuntu', 'debian', 'arch', 'alpine']
+	foreach distro : distributions
+		yq_filter = '.distributions[] | select(.name == "@0@") | .packages | join(" ")'.format(distro)
+		deps = run_command(yq, '-r', yq_filter,
+				   dir_gitlab_ci / 'config.yml',
+				   check: true).stdout()
+		dependencies_config.set('@0@_PACKAGES'.format(distro.to_upper()), deps)
+endforeach
+endif
+configure_file(input: 'dependencies.rst',
+	       output: 'dependencies.rst',
+	       configuration: dependencies_config)
 
 # do not use -j, it breaks on Ubuntu
 sphinx_output_dir = 'Documentation'
@@ -190,5 +219,6 @@ custom_target('sphinx',
 	      input : [ sphinx_conf_py, git_version_page ] + src_sphinx + dst_404s,
 	      output : [ sphinx_output_dir ],
 	      command : [ sphinx, '-q', '-b', 'html',
+			  '-d', meson.current_build_dir() / 'doctrees',
 			  meson.current_build_dir(), sphinx_output_dir],
 	      build_by_default : true)

doc/user/normalization-of-relative-motion.rst

@@ -27,6 +27,11 @@ libinput applies a dpi-dependent acceleration function. At low speeds, a
 movement speed increases, acceleration is applied - at high speeds a low-dpi
 device will roughly feel the same as a higher-dpi mouse.
 
+The reason for the normalization is convenience: a caller can assume that a
+delta of 1 should result in a movement of 1 pixel on a traditional
+(low-dpi) screen. On screens with high resolutions, the caller must scale
+according to the UI scale factors.
+
 This normalization only applies to accelerated coordinates, unaccelerated
 coordinates are left in device-units. It is up to the caller to interpret
 those coordinates correctly.

doc/user/palm-detection.rst

@@ -27,6 +27,7 @@ hardware-specific capabilities.
 - :ref:`palm_exclusion_zones`
 - :ref:`trackpoint-disabling`
 - :ref:`disable-while-typing`
+- :ref:`disable-while-trackpointing`
 - :ref:`stylus-touch-arbitration`
 
 Palm detection is always enabled, with the exception of
@@ -91,9 +92,8 @@ Another exclusion zone is defined on the top edge of the touchpad. As with
 the edge zones, libinput detects vertical movements out of the edge zone and
 avoids palm detection on such touch sequences.
 
-Each side edge exclusion zone is divided into a top part and a bottom part.
-A touch starting in the top part of the exclusion zone does not trigger a
-tap (see :ref:`tapping`).
+A touch starting in the exclusion zone does not trigger a tap (see
+:ref:`tapping`).
 
 In the diagram below, the exclusion zones are painted red.
 Touch 'A' starts inside the exclusion zone and moves
@@ -103,10 +103,8 @@ despite moving out of the exclusion zone.
 Touch 'B' starts inside the exclusion zone but moves horizontally out of the
 zone. It is considered a valid touch and controls the cursor.
 
-Touch 'C' occurs in the top part of the exclusion zone. Despite being a
-tapping motion, it does not generate an emulated button event. Touch 'D'
-likewise occurs within the exclusion zone but in the bottom half. libinput
-will generate a button event for this touch.
+Touch 'C' occurs in the exclusion zone. Despite being a tapping motion, it does
+not generate an emulated button event.
 
 .. figure:: palm-detection.svg
     :align: center
@@ -157,10 +155,29 @@ Notable behaviors of libinput's disable-while-typing feature:
   typing.
 - Physical buttons work even while the touchpad is disabled. This includes
   :ref:`software-emulated buttons <t440_support>`.
+- libinput pairs touchpads and keyboards for the disable-while-typing
+  feature. In the most common case, the internal touchpad is paired only
+  with the internal keyboard. Typing on an external keyboard will thus not
+  disable the touchpad. Some devices require a :ref:`quirk <device-quirks>`
+  to be correctly paired.
 
 Disable-while-typing can be enabled and disabled by calling
 **libinput_device_config_dwt_set_enabled()**.
 
+.. _disable-while-trackpointing:
+
+------------------------------------------------------------------------------
+Disable-while-trackpointing
+------------------------------------------------------------------------------
+
+libinput automatically disables the touchpad for a timeout after the trackpoint
+is moved, a feature referred to as "disable while trackpointing". libinput does
+not require an external command and the feature is currently enabled for all
+touchpads.
+
+Disable-while-trackpointing can be enabled and disabled by calling
+**libinput_device_config_dwtp_set_enabled()**.
+
 .. _stylus-touch-arbitration:
 
 ------------------------------------------------------------------------------

doc/user/pointer-acceleration.rst

@@ -19,12 +19,18 @@ Pointer acceleration profiles
 ------------------------------------------------------------------------------
 
 The profile decides the general method of pointer acceleration.
-libinput currently supports two profiles: "adaptive" and "flat". The adaptive
-profile is the default profile for all devices and takes the current speed
-of the device into account when deciding on acceleration. The flat profile
-is simply a constant factor applied to all device deltas, regardless of the
-speed of motion (see :ref:`ptraccel-profile-flat`). Most of this document
-describes the adaptive pointer acceleration.
+libinput currently supports three profiles: **"adaptive"**, **"flat"** and
+**"custom"**.
+
+- The **adaptive** profile is the default profile for all devices and takes the
+  current speed of the device into account when deciding on acceleration.
+- The **flat** profile is simply a constant factor applied to all device deltas,
+  regardless of the speed of motion (see :ref:`ptraccel-profile-flat`).
+- The **custom** profile allows the user to define a custom acceleration
+  function, giving full control over accelerations behavior at different speed
+  (see :ref:`ptraccel-profile-custom`).
+
+Most of this document describes the adaptive pointer acceleration.
 
 .. _ptraccel-velocity:
 
@@ -166,7 +172,7 @@ what is a unit again.
 
 libinput attempts to normalize unit data to the best of its abilities, see
 :ref:`trackpoint_multiplier`. Beyond this, it is not possible to have
-consistent behavior across different touchpad devices.
+consistent behavior across different trackpoint devices.
 
 .. figure:: ptraccel-trackpoint.svg
     :align: center
@@ -196,3 +202,95 @@ Pointer acceleration on tablets
 Pointer acceleration for relative motion on tablet devices is a flat
 acceleration, with the speed setting slowing down or speeding up the pointer
 motion by a constant factor. Tablets do not allow for switchable profiles.
+
+.. _ptraccel-profile-custom:
+
+------------------------------------------------------------------------------
+The custom acceleration profile
+------------------------------------------------------------------------------
+
+libinput supports a user-defined custom acceleration profile, which can be
+adjusted for different movement types supported by a device. Movement types
+include pointer movement, scrolling, etc. but the set of supported
+movement types depends on the device.
+
+The custom pointer acceleration profile gives users full control over the
+acceleration behavior at different speeds. libinput exposes
+an acceleration function ``f(x)`` where the x axis is the device speed in
+device units per millisecond and the y axis is the pointer speed. By
+supplying the y axis values for this function, users can control the
+behavior of the device.
+
+The user should take into account the native device dpi and screen dpi in
+order to achieve the desired behavior/feel.
+
+The custom acceleration function is defined using ``n`` points which are spaced
+uniformly along the x axis, starting from 0 and continuing in constant steps.
+At least two points must be defined and there is an implementation-defined
+limit on how many points may be added.
+
+Thus the points defining the custom function are:
+``(0 * step, f[0]), (1 * step, f[1]), ..., ((n-1) * step, f[n-1])``
+where ``f`` is a list of ``n`` values defining the output velocity for each
+input velocity.
+The acceleration factor is defined by the ratio of the output velocity to the
+input velocity.
+When a velocity value does not lie exactly on those points, a linear
+interpolation of the two closest points will be calculated.
+When a velocity value is greater than the max point defined, a linear
+extrapolation of the two biggest points will be calculated.
+
+the calculation made by libinput: ::
+
+    input_delta = device delta units
+    delta_time = time in ms since last input_delta
+    input_speed = hypot(input_delta) / delta_time
+    output_speed = user_custom_function(input_speed)
+    acceleration_factor = output_speed / input_speed
+    output_delta = input_delta * acceleration_factor
+
+An example is the curve of ``0.0, 1.0`` with a step of ``1.0``. This curve
+is the equivalent of the flat acceleration profile with any input speed ``N``
+mapped to the same pointer speed ``N``. The curve ``1.0, 1.0`` neutralizes
+any input speed differences and results in a fixed pointer speed.
+
+Another example is the custom acceleration function ``x**2``,
+sampling the function at ``4`` points up to
+a maximum input speed of ``9`` will give us a custom function with
+a step of ``3`` and points ``[0.0, 9.0, 36.0, 81.0]``:
+
+.. figure:: ptraccel-custom.svg
+    :align: center
+
+More sampled points can be added to improve the accuracy of the user custom
+function.
+
+Supported Movement types:
+
++---------------+---------------------------------+----------------------+
+| Movement type | Uses                            | supported by         |
++===============+=================================+======================+
+| Fallback      | Catch-all default movement type | All devices          |
++---------------+---------------------------------+----------------------+
+| Motion        | Used for pointer motion         | All devices          |
++---------------+---------------------------------+----------------------+
+| Scroll        | Used for scroll movement        | Mouse, Touchpad      |
++---------------+---------------------------------+----------------------+
+
+If a user does not provide the fallback custom acceleration function, a
+flat acceleration function is used, i.e. no acceleration.
+
+The fallback acceleration may be used for different types of movements, it is
+strongly recommended that this acceleration function is a constant function.
+
+For example, a touchpad has multiple movement types: pointer
+movement, scroll movement, zoom movement (pinch), etc. As there is no separate
+movement type for zoom yet, zoom movement is accelerated using the Fallback
+acceleration function. Pointer movement is accelerated using the Motion
+acceleration function, and Scroll movement is accelerated using the Scroll
+acceleration function. If no Motion/Scroll acceleration function is set, the
+Fallback acceleration function is used.
+
+When using custom acceleration profile, any calls to set the speed have no
+effect on the behavior of the custom acceleration function, but any future calls to
+get the speed will reflect the requested speed setting.

doc/user/reporting-bugs.rst

@@ -64,7 +64,11 @@ For the vast majority of bugs you should not take longer than 5 seconds or
 three interactions (clicks, touches, taps, ...) with the device to
 reproduce. If it takes longer than that, you can narrow it down further.
 
-Once you can reproduce it, use the :ref:`libinput-debug-events` helper tool.
+Once you can reproduce it, use the :ref:`libinput-debug-events` helper
+tool::
+
+ $> libinput debug-events --verbose
+
 The output is textual and can help identify whether the bug is in libinput
 at all. Note that any configuration options you have set must be specified
 on the commandline, see the :ref:`libinput-debug-events`
@@ -109,8 +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:
@@ -166,8 +170,7 @@ When you file a bug, please attach the following information:
   This is the most important piece of information, do not forget it!
 - the vendor model number of the device (e.g. "Logitech M325")
 - the output from udevadm info, see :ref:`udev_info`.
-- the output of ``libinput measure trackpoint-range``
-- the sensitivity of the trackpoint (adjust the event node number as needed): ::
+- the sensitivity of the trackpoint if it exists (adjust the event node number as needed): ::
 
      $ cat /sys/class/input/event17/device/device/sensitivity
 
@@ -301,7 +304,7 @@ updated its package accordingly.
 
 Whether the bug fix ends up in your distribution depends on a number of
 things. Any given bug fix **may** be cherry-picked into the current stable
-branch, depending on its severity, impact, and likelyhood to cause
+branch, depending on its severity, impact, and likelihood to cause
 regressions. Once cherry-picked it will land in the next stable branch
 release. These are usually a few weeks apart.
 
@@ -342,3 +345,51 @@ However, if the regression is in behavior unrelated to the fix itself it is
 usually better to file a new bug to reduce the noise. For example, if a fix
 to improve tapping breaks two-finger scrolling behavior, you should file a
 new bug but reference the original bug.
+
+.. _reporting_bugs_tags:
+
+------------------------------------------------------------------------------
+Gitlab issue tracker tags
+------------------------------------------------------------------------------
+
+The gitlab issue tracker allows developers to add tags to bugs to classify
+them.
+
+- **being worked on**: someone is currently working on this feature. This
+  tag is used for features that will take a long time to implement fully and
+  prevents others from having to duplicate the work. Do reach out and ask if
+  help and/or further testing is needed.
+- **bug**: issue is confirmed to be a bug
+- **cantfix**: for technical reasons, this bug cannot be fixed, or at least
+  it cannot be fixed in libinput.
+- **enhancement**: this issue describes a future feature, not a bug.
+- **help needed**: this issue requires someone outside the libinput core
+  developer team to implement it. It is unlikely to be implemented
+  without someone stepping up to do the work. If you do see this tag, do ask
+  for guidance on how to implement it.
+- **hw issue**: an issue that affects a specific device and is a hardware
+  bug, not a software bug. Often these needs to be worked around in libinput
+  but there are cases where a hw issue ends up as *cantfix*.
+- **janitor**: a cleanup task that does not substantially affect how
+  libinput works. These are usually good bugs for newcomers to start on.
+- **kernel**: this issue is a kernel bug, not a libinput bug. Often closed
+  as *cantfix* of *wontfix* as we wait for the kernel to address the issue
+  instead.
+- **needs triage**: bug has not yet been confirmed by a core developer.
+- **not our bug**: the issue is in some other component of the stack and
+  needs to be addressed there.
+- **please test**: a fix is available but not yet merged and should be
+  tested by the reporter or others affected by the issue.
+- **quirk**: this is issue needs :ref:`device-quirks` to be fixed
+- **regression**: the issue is a regression to previous versions of
+  libinput. These issues get priorities.
+- **waiting on reporter**: some more information is required from the
+  reporter and the issue cannot be fixed until the issue has been provided.
+  Where a bug is left in this state for too long, the bug will be closed as
+  *cantfix*.
+- **wontfix**: this issue will not get fixed. This tag is usually assigned
+  to feature requests that are outside the scope of libinput or would put an
+  unreasonable maintenance burdern on the maintainers.
+
+These tags are high-level categories only, always look for the comments in
+the issue to get further details.

doc/user/scrolling.rst

@@ -52,9 +52,9 @@ vertically or horizontally.
 
     Vertical and horizontal two-finger scrolling
 
-For scrolling to trigger, a built-in distance threshold has to be met but once
-engaged any movement will scroll. In other words, to start scrolling a
-sufficiently large movement is required, once scrolling tiny amounts of
+For scrolling to trigger, a built-in distance threshold has to be met, but once
+engaged, any movement will scroll. In other words: to start scrolling, a
+sufficiently large movement is required; once scrolling, tiny amounts of
 movements will translate into tiny scroll movements.
 Scrolling in both directions at once is possible by meeting the required
 distance thresholds to enable each direction separately.
@@ -117,12 +117,28 @@ the motion events. Cross-device scrolling is not supported but
 for one exception: libinput's :ref:`t440_support` enables the use of the middle
 button for button scrolling (even when the touchpad is disabled).
 
+If the scroll button lock is enabled (see
+**libinput_device_config_scroll_set_button_lock()**), the button does not
+need to be held down. Pressing and releasing the button once enables the
+button lock, the button is now considered logically held down. Pressing and
+releasing the button a second time logically releases the button. While the
+button is logically held down, motion events are converted to scroll events.
+
+If the button is held and used to scroll for longer than a short grace
+period, releasing the button does not engage the lock. This allows
+hold-to-scroll for short, precise adjustments without accidentally toggling
+the lock. A quick click or a brief scroll within the grace period still
+engages the lock as normal.
+
 .. _scroll_sources:
 
 ------------------------------------------------------------------------------
 Scroll sources
 ------------------------------------------------------------------------------
 
+.. note:: Scroll sources are deprecated with libinput 1.19. The scroll
+   source is now encoded in the event type.
+
 libinput provides a pointer axis *source* for each scroll event. The
 source can be obtained with the **libinput_event_pointer_get_axis_source()**
 function and is one of **wheel**, **finger**, or **continuous**. The source
@@ -140,3 +156,23 @@ See the **libinput_event_pointer_get_axis_source()** for details on the
 behavior of each scroll source.
 
 See also http://who-t.blogspot.com.au/2015/03/libinput-scroll-sources.html
+
+.. _natural_scrolling:
+
+------------------------------------------------------------------------------
+Natural scrolling vs. traditional scrolling
+------------------------------------------------------------------------------
+
+Natural scrolling is the term (probably) coined by Apple for matching
+the motion of the scroll device with the direction of the **content**.
+
+In traditional scrolling, moving the wheel down causes the scroll bar
+indicators to move down and the content to move up. In natural scrolling,
+moving the wheel down causes the content to move down and the scroll bar
+indicators to move up. This method of scrolling matches the interaction
+with content on touch screens where a movement down also moves the content
+down.
+
+libinput supports natural scrolling for all its scroll methods; it can
+be enabled with the
+**libinput_device_config_scroll_set_natural_scroll_enabled()** function.

doc/user/svg/palm-detection.svg

@@ -138,13 +138,6 @@
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-     height="136.12065"
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-     y="7.1355872" />
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      xml:space="preserve"
@@ -155,13 +148,6 @@
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        y="63.628628"
        x="33.214291">A</tspan></text>
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      xml:space="preserve"
@@ -191,16 +177,6 @@
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        y="46.009491"
        x="342.27759">C</tspan></text>
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@@ -208,13 +184,6 @@
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doc/user/svg/ptraccel-trackpoint.svg

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"  standalone="no"?>
-<svg 
+<svg
  width="600" height="480"
  viewBox="0 0 600 480"
  xmlns="http://www.w3.org/2000/svg"
@@ -208,4 +208,3 @@
 </g>
 </g>
 </svg>
-

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doc/user/switches.rst

@@ -4,9 +4,9 @@
 Switches
 ==============================================================================
 
-libinput supports the lid and tablet-mode switches. Unlike button events
-that come in press and release pairs, switches are usually toggled once and
-left at the setting for an extended period of time.
+libinput supports the lid, tablet-mode, and keypad slide switches. Unlike
+button events that come in press and release pairs, switches are usually
+toggled once and left at the setting for an extended period of time.
 
 Only some switches are handled by libinput, see **libinput_switch** for a
 list of supported switches. Switch events are exposed to the caller, but
@@ -28,15 +28,17 @@ The evdev event code ``EV_SW`` ``SW_LID`` is provided as
 the device is disabled while the lid is logically closed. This is to avoid
 ghost touches that can be caused by interference with touchpads and the
 closed lid. The touchpad is automatically re-enabled whenever the lid is
-openend.
+opened.
 
 This handling of lid switches is transparent to the user, no notifications
 are sent and the device appears as enabled at all times.
 
 On some devices, the device's lid state does not always reflect the physical
-state and the lid state may report as closed even when the lid is physicall
-open. libinput employs some heuristics to detect user input (specificially
-typing) to re-enable the touchpad on those devices.
+state and the lid state may report as closed even when the lid is physically
+open. libinput employs some heuristics to detect user input (specifically
+typing) to re-enable the touchpad on those devices. Where input is detected,
+libinput updates the lid status of the kernel device so other consumers of
+the kernel events also get the accurate state.
 
 .. _switches_tablet_mode:
 
@@ -57,3 +59,20 @@ tablet mode is disengaged.
 
 This handling of tablet mode switches is transparent to the user, no
 notifications are sent and the device appears as enabled at all times.
+
+.. _switches_keypad_slide:
+
+------------------------------------------------------------------------------
+Keypad slide switch handling
+------------------------------------------------------------------------------
+
+Where available, libinput listens to devices providing a keypad slide switch.
+This is usually available on devices that have an always-attached physical
+keyboard which can slide under the screen. An example of such a device is the
+Nokia N900.
+
+The event sent by the kernel is ``EV_SW`` ``SW_KEYPAD_SLIDE`` and is provided
+as **LIBINPUT_SWITCH_KEYPAD_SLIDE**. The keypad slide switch does not cause any
+other input devices to be enabled nor disabled in response, since on some
+devices the kernel event is sent while the keyboard is partially visible and
+thus usable.

doc/user/tablet-debugging.rst

@@ -39,6 +39,6 @@ the ``libinput record`` tool.
 - **resolution** indicates that the device does not have a resolution set
   for the x and y axes. This can be fixed with a hwdb entry, locate and read
   the `60-evdev.hwdb
-  <https://github.com/systemd/systemd/tree/master/hwdb/60-evdev.hwdb>`__ file
+  <https://github.com/systemd/systemd/blob/main/hwdb.d/60-evdev.hwdb>`__ file
   on your machine and file a pull request with the fixes against
   `systemd <https://github.com/systemd/systemd/>`__.

doc/user/tablet-support.rst

@@ -180,8 +180,8 @@ specifically:
   capable of detection distances,
 - pressure offset is only detected if the distance between the tool and the
   tablet is high enough,
-- pressure offset is only used if it is 20% or less of the pressure range
-  available to the tool. A pressure offset higher than 20% indicates either
+- pressure offset is only used if it is 50% or less of the pressure range
+  available to the tool. A pressure offset higher than 50% indicates either
   a misdetection or a tool that should be replaced, and
 - if a pressure value less than the current pressure offset is seen, the
   offset resets to that value.
@@ -189,6 +189,52 @@ specifically:
 Pressure offsets are not detected on **LIBINPUT_TABLET_TOOL_TYPE_MOUSE**
 and **LIBINPUT_TABLET_TOOL_TYPE_LENS** tools.
 
+
+.. _tablet-pressure-range:
+
+------------------------------------------------------------------------------
+Custom tablet tool pressure ranges
+------------------------------------------------------------------------------
+
+On tablets supporting pressure, libinput provides that hardware pressure as
+a logical range of ``0.0`` up to ``1.0`` for the maximum supported pressure.
+By default, the hardware range thus maps into the following logical range::
+
+
+           hw minimum                                  hw maximum
+  hw range:      |------|-----------------------------------|
+  logical range:   |----|-----------------------------------|
+                  0.0   |                                  1.0
+                       Tip
+
+Note that libinput always has some built-in thresholds to filter out erroneous
+touches with near-zero pressure but otherwise the hardware range maps as-is
+into the logical range. The :ref:`tip event <tablet-tip>` threshold is defined
+within this range.
+
+For some use-cases the full hardware range is not suitable, it may require either
+too light a pressure for the user to interact or it may require too hard a
+pressure before the logical maximum is reached. libinput provides
+the **libinput_tablet_tool_config_pressure_range_set()** function that allows
+reducing the usable range of the tablet::
+
+           hw minimum                                  hw maximum
+  hw range:      |----------|-------------------------------|
+  adjusted range:    |------|---------------------|
+  logical range:       |----|---------------------|
+                      0.0   |                    1.0
+                           Tip
+
+A reduced range as shown above will result in
+
+- all hw pressure below the new minimum to register as logical pressure ``0.0``
+- all hw pressure above the new maximum to register as logical pressure ``1.0``
+- the tip event threshold to be relative to the new minimum
+
+In other words, adjusting the pressure range of a tablet tool is equivalent to
+reducing the hardware range of said tool. Note that where a custom pressure
+range is set, detection of :ref:`tablet-pressure-offset` is disabled.
+
 .. _tablet-serial-numbers:
 
 ------------------------------------------------------------------------------
@@ -422,3 +468,77 @@ libinput uses the **libinput_device_group** to decide on touch arbitration
 and automatically discards touch events whenever a tool is in proximity.
 The exact behavior is device-dependent.
 
+.. _tablet-area:
+
+------------------------------------------------------------------------------
+Tablet area
+------------------------------------------------------------------------------
+
+External tablet devices such as e.g. the Wacom Intuos series can be configured
+to reduce the available logical input area. Typically the logical input area
+is equivalent to the physical input area but it can be reduced with the
+**libinput_device_config_area_set_rectangle()** call. Once reduced, input
+events outside the logical input area are ignored and the logical input area
+acts as if it represented the extents of the physical tablet.
+
+.. figure:: tablet-area.svg
+   :align: center
+
+   Tablet area configuration example
+
+In the image above, the area is set to the rectangle 0.25/0.25 to 0.5/0.75.
+Even though the tool is roughly at the physical position ``0.5 * width`` and
+``0.75 * height``, the return values of
+**libinput_event_tablet_tool_get_x_transformed()** and
+**libinput_event_tablet_tool_get_y_transformed()** would be close to the
+maximum provided in this call.
+
+The size of the tablet reported by **libinput_device_get_size()** always reflects
+the physical area, not the logical area.
+
+.. _tablet-eraser-button:
+
+------------------------------------------------------------------------------
+Tablet eraser buttons
+------------------------------------------------------------------------------
+
+Tablet tools come in a variety of forms but the most common one is a
+pen-like tool. Some of these pen-like tools have a virtual eraser at the
+tip of the tool - inverting the tool brings the eraser into proximity.
+
+.. figure:: tablet-eraser-invert.svg
+    :align: center
+
+    An pen-like tool used as pen and as eraser by inverting it
+
+Having an eraser as a separate tool is beneficial in many applications as the
+eraser tool can be assigned different functionality (colors, paint tools, etc.)
+that is easily available.
+
+However, a large proportion of tablet pens have an "eraser button". By
+pressing the button the pen switches to be an eraser tool.
+On the data level this is not done via a button event, instead the firmware
+will pretend the pen tool going out of proximity and the eraser coming
+into proximity immediately after - as if the tool was physically inverted.
+
+.. figure:: tablet-eraser-button.svg
+    :align: center
+
+    An pen-like tool used as pen and as eraser by pressing the eraser button
+
+Microsoft mandates this behavior (see
+`Windows Pen States <https://learn.microsoft.com/en-us/windows-hardware/design/component-guidelines/windows-pen-states>`_
+for details) and thus the overwhelming majority of devices will have
+an eraser button that virtually inverts the pen.
+
+Enforcing an eraser button means that users have one button less on the
+stylus that they would have otherwise. For some users the eraser button
+is in an inconvenient location, others don't want an eraser button at all.
+
+libinput provides an eraser button configuration that allows disabling the
+eraser button and turning it into a normal button event. If the eraser button
+is disabled, pressing that button will generate a normal tablet tool button
+event.
+
+This configuration is only available on pens with an eraser button, not on
+with an invert-type eraser.

doc/user/tapping.rst

@@ -8,12 +8,13 @@ Tap-to-click behaviour
 finger touch down/up sequence maps into a button click. This is most
 commonly used on touchpads, but may be available on other devices.
 
-libinput implements tapping for one, two, and three fingers, where supported
-by the hardware, and maps those taps into a left, right, and middle button
-click, respectively. Not all devices support three fingers, libinput will
-support tapping up to whatever is supported by the hardware. libinput does
-not support four-finger taps or any tapping with more than four fingers,
-even though some hardware can distinguish between that many fingers.
+libinput implements tapping for one, two, and three fingers, where supported by
+the hardware, and maps those taps into a left, right, and middle button click,
+respectively. This mapping can be switched to left, middle and right through
+configuration. Not all devices support three fingers, libinput will support
+tapping up to whatever is supported by the hardware. libinput does not support
+four-finger taps or any tapping with more than four fingers, even though some
+hardware can distinguish between that many fingers.
 
 .. _tapping_default:
 
@@ -33,6 +34,10 @@ Tapping is **enabled** by default on devices where tapping is the only
 method to trigger button clicks. This includes devices without physical
 buttons such as touch-capable graphics tablets.
 
+.. note:: Unfortunately due to the current API design, devices that require
+          tapping effectively prevent us from changing this default. For details see
+          `this comment <https://gitlab.freedesktop.org/libinput/libinput/-/issues/926#note_2056476>`_.
+
 Tapping can be enabled/disabled on a per-device basis. See
 **libinput_device_config_tap_set_enabled()** for details.
 
@@ -49,12 +54,19 @@ Tap-and-drag is optional and can be enabled or disabled with
 **libinput_device_config_tap_set_drag_enabled()**. Most devices have
 tap-and-drag enabled by default.
 
+.. note:: Dragging is always done with one finger. The number of fingers on
+          the initial tap decide the type of button click. For example, to
+          middle-click drag, tap with three fingers followed by a
+          single-finger drag.
+
 Also optional is a feature called "drag lock". With drag lock disabled, lifting
-the finger will stop any drag process. When enabled, libinput will ignore a
-finger up event during a drag process, provided the finger is set down again
-within a implementation-specific timeout. Drag lock can be enabled and
-disabled with **libinput_device_config_tap_set_drag_lock_enabled()**.
-Note that drag lock only applies if tap-and-drag is be enabled.
+the finger will stop any drag process. When enabled, the drag
+process continues even after lifting a finger but can be ended
+with an additional tap. If timeout-based drag-locks are enabled
+the drag process will also automatically end once the finger has
+been lifted for an implementation-specific timeout. Drag lock can be
+enabled and disabled with **libinput_device_config_tap_set_drag_lock_enabled()**.
+Note that drag lock only applies if tap-and-drag is enabled.
 
 .. figure:: tap-n-drag.svg
     :align: center
@@ -72,6 +84,9 @@ If drag lock is enabled, the release of the mouse buttons after the finger
 release (e) is triggered by a timeout. To release the button immediately,
 simply tap again (f).
 
+If drag lock is enabled in sticky mode there is no timeout after
+releasing a finger and an extra tap is required to release the button.
+
 If two fingers are supported by the hardware, a second finger can be used to
 drag while the first is held in-place.
 

doc/user/test-suite.rst

@@ -27,8 +27,7 @@ must pass for any merge request. These tests are invoked by calling
 ``meson test -C builddir`` (or ``ninja test``). The ``libinput-test-suite`` is
 part of that test set by default.
 
-The upstream CI runs all these tests but not the ``libinput-test-suite``.
-This CI is run for every merge request.
+The upstream CI runs all these tests and is run for every merge request.
 
 .. _test-job-control:
 
@@ -208,7 +207,7 @@ verification of distribution composes.
 To configure libinput to install the tests, use the ``-Dinstall-tests=true``
 meson option::
 
-  $ meson builddir -Dtests=true -Dinstall-tests=true <other options>
+  $ meson setup builddir -Dtests=true -Dinstall-tests=true <other options>
 
 .. _test-meson-suites:
 

doc/user/timestamps.rst

@@ -42,3 +42,5 @@ Once the timeout expires at t4, libinput generates an event of
 
 Thus, the caller gets events with timestamps in the order t3, t1, t2,
 despite t3 > t2 > t1.
+
+libinput timestamps use **CLOCK_MONOTONIC**.

doc/user/tools.rst

@@ -11,8 +11,10 @@ available in the **libinput(1)** man page.
 
 The most common tools used are:
 
-- ``libinput list-devices``: to list locally available devices,
+- ``libinput list-devices``: to list locally available devices as seen by libinput,
   see :ref:`here <libinput-list-devices>`
+- ``libinput list-kernel-devices``: to list locally available devices as seen by the kernel,
+  see :ref:`here <libinput-list-kernel-devices>`
 - ``libinput debug-events``: to monitor and debug events,
   see :ref:`here <libinput-debug-events>`
 - ``libinput debug-gui``: to visualize events,
@@ -21,6 +23,8 @@ The most common tools used are:
   see :ref:`here <libinput-record>`
 - ``libinput measure``: measure properties on a kernel device,
   see :ref:`here <libinput-measure>`
+- ``libinput analyze``: analyse event recordings from a kernel device,
+  see :ref:`here <libinput-analyze>`
 - ``libinput quirks``: show quirks assigned to a device, see
   :ref:`here <libinput-quirks>`
 
@@ -71,6 +75,55 @@ binary state all available options are listed, with the default one prefixed
 with an asterisk (``*``). In the example above, the default click method is
 button-areas but clickfinger is available.
 
+.. note:: This tool is intended for human-consumption and may change its output
+          at any time.
+
+.. _libinput-list-kernel-devices:
+
+------------------------------------------------------------------------------
+libinput list-kernel-devices
+------------------------------------------------------------------------------
+
+The ``libinput list-kernel-devices`` command shows the devices known by **the
+kernel**. This command can help identify issues when a device is not handled by
+libinput.
+
+::
+
+    $ libinput list-kernel-devices
+    /dev/input/event0:	Sleep Button
+    /dev/input/event1:	Power Button
+    /dev/input/event2:	Power Button
+    /dev/input/event3:	Microsoft Microsoft® 2.4GHz Transceiver v9.0
+    /dev/input/event4:	Microsoft Microsoft® 2.4GHz Transceiver v9.0 Mouse
+    [...]
+
+
+In some cases, knowing about the HID devices behind the kernel's event nodes
+can be useful. To list HID devices, supply the ``--hid`` commandline flag:
+
+::
+
+    $ libinput list-kernel-devices --hid
+    hid:
+    - name:   'Logitech Gaming Mouse G303'
+      id:     '046d:c080'
+      driver: 'hid-generic'
+      hidraw: ['/dev/hidraw6']
+      evdev:  ['/dev/input/event13']
+
+    - name:   'Logitech Gaming Mouse G303'
+      id:     '046d:c080'
+      driver: 'hid-generic'
+      hidraw: ['/dev/hidraw7']
+      evdev:  ['/dev/input/event14']
+
+    - name:   'Microsoft Microsoft® 2.4GHz Transceiver v9.0'
+      id:     '045e:07a5'
+      driver: 'hid-generic'
+      hidraw: ['/dev/hidraw0']
+      evdev:  ['/dev/input/event3']
+
 .. note:: This tool is intended for human-consumption and may change its output
           at any time.
 
@@ -302,6 +355,19 @@ thing and one thing only and their usage is highly specific to the tool.
 Please see the **libinput-measure(1)** man page for information about what
 tools are available and the man page for each respective tool.
 
+.. _libinput-analyze:
+
+------------------------------------------------------------------------------
+Analyzing device events with libinput analyze
+------------------------------------------------------------------------------
+
+The ``libinput analyze`` tool is a multiplexer for various sub-tools that
+can analyze input events previously recorded from a device.
+
+Please see the **libinput-analyze(1)** man page for information about what
+tools are available and the man page for each respective too.
+
+
 .. _libinput-quirks:
 
 ------------------------------------------------------------------------------
@@ -311,7 +377,7 @@ Listing quirks assigned to a device
 The ``libinput quirks`` tool can show quirks applied for any given device. ::
 
      $ libinput quirks list /dev/input/event0
-     AttrLidSwitchReliability=reliable
+     AttrLidSwitchReliability=unreliable
 
 If the tool's output is empty, no quirk is applied. See :ref:`device-quirks`
 for more information.

doc/user/touchpad-jumping-cursors.rst

@@ -14,10 +14,13 @@ position.
 When libinput detects a cursor jump it prints a bug warning to the log with
 the text **"Touch jump detected and discarded."** and a link to this page.
 
-In most cases, this is a bug in the kernel driver and to libinput it appears
-that the touch point moves from its previous position. The pointer jump can
-usually be seen in the :ref:`libinput record <libinput-record>` output for the device:
+.. note:: This warning is ratelimited and will stop appearing after a few
+	  times, even if the touchpad jumps continue.
 
+In most cases, this is a bug in the firmware (or kernel driver) and to
+libinput it appears that the touch point moves from its previous position.
+The pointer jump can usually be seen in the :ref:`libinput record
+<libinput-record>` output for the device:
 
 ::
 
@@ -50,9 +53,28 @@ usually be seen in the :ref:`libinput record <libinput-record>` output for the d
 In this recording, the pointer jumps from its position 3752/2216 to
 1640/4681 within a single frame. On this particular touchpad, this would
 represent a physical move of almost 50mm. libinput detects some of these
-jumps and discards the movement but otherwise continues as usual. However,
-the bug should be fixed at the kernel level.
+jumps and discards the movement but otherwise continues as usual.
+If your only encounter with these jumps is the warning printed to the log,
+libinput functions as intended.
 
 When you encounter the warning in the log, please generate a recording of
 your touchpad with :ref:`libinput record <libinput-record>` and file a bug.
 See :ref:`reporting_bugs` for more details.
+
+Note that it most cases, libinput cannot actually fix the issue. Filing a
+bug is useful to figure out if there are other factors at play or whether
+there are heuristics we can employ to reduce the impact.
+
+------------------------------------------------------------------------------
+AlpsPS/2 ALPS DualPoint TouchPad jumping to 4095/0
+------------------------------------------------------------------------------
+
+A special case of pointer jumps happens on ``AlpsPS/2 ALPS DualPoint TouchPad``
+devices found in the Lenovo ThinkPad E465 and E550 and likely others with
+the same touchpad hardware. On those devices, the touchpad occasionally
+sends an event for the second finger to move to position 4095/0 before
+moving back to the original position. libinput detects this movement and
+removes it but depending on the interaction this may cause a smaller jump
+later when the coordinates reset to the new position of the finger.
+
+Some more information is available in `Gitlab Issue #492 <https://gitlab.freedesktop.org/libinput/libinput/-/issues/492>`__.

doc/user/touchpad-pressure-debugging.rst

@@ -38,30 +38,53 @@ statistics, including whether a touch is/was considered logically down.
 
 Example output of the tool is below: ::
 
-     $ sudo libinput measure touchpad-pressure
-     Ready for recording data.
-     Pressure range used: 8:10
-     Palm pressure range used: 65535
-     Place a single finger on the touchpad to measure pressure values.
-     Ctrl+C to exit
-      
-     Sequence 1190 pressure: min:  39 max:  48 avg:  43 median:  44 tags: down
-     Sequence 1191 pressure: min:  49 max:  65 avg:  62 median:  64 tags: down
-     Sequence 1192 pressure: min:  40 max:  78 avg:  64 median:  66 tags: down
-     Sequence 1193 pressure: min:  36 max:  83 avg:  70 median:  73 tags: down
-     Sequence 1194 pressure: min:  43 max:  76 avg:  72 median:  74 tags: down
-     Touchpad pressure:  47 min:  47 max:  86 tags: down
+    $ sudo libinput measure touchpad-pressure
+    Using Synaptics TM2668-002: /dev/input/event21
+
+    This is an interactive tool
+
+    Place a single finger on the touchpad to measure pressure values.
+    Check that:
+    - touches subjectively perceived as down are tagged as down
+    - touches with a thumb are tagged as thumb
+    - touches with a palm are tagged as palm
+
+    If the touch states do not match the interaction, re-run
+    with --touch-thresholds=down:up using observed pressure values.
+    See --help for more options.
+
+    Interactive keys:
+        q/a - decrease/increase down threshold
+        w/s - decrease/increase up threshold
+        e/d - decrease/increase palm threshold
+        r/f - decrease/increase thumb threshold
+
+    Press Ctrl+C to exit
+
+    ┌───────────────────────────────────────────────────────────────────────────────┐
+    │ Touch  │  down  │  up  │  palm  │ thumb  │ min  │ max  │ p  │ avg  │  median  │
+    ├───────────────────────────────────────────────────────────────────────────────┤
+    │  178   │   x    │  x   │        │        │  75  │  75  │ 0  │  75  │    75    │
+    │  179   │   x    │  x   │        │        │  35  │  88  │ 0  │  77  │    81    │
+    │  180   │   x    │  x   │        │   x    │  65  │ 113  │ 0  │  98  │    98    │
+    │  181   │   x    │  x   │        │   x    │  50  │ 101  │ 0  │  86  │    90    │
+    │  182   │   x    │  x   │        │        │  40  │  80  │ 0  │  66  │    70    │
+    │  183   │   x    │      │        │        │  43  │  78  │ 78 │                 │
+    │ Thresh │   70   │  60  │  130   │  100   │
+    ...
 
 
 The example output shows five completed touch sequences and one ongoing one.
 For each, the respective minimum and maximum pressure values are printed as
-well as some statistics. The ``tags`` show that sequence was considered
-logically down at some point. This is an interactive tool and its output may
-change frequently. Refer to the <i>libinput-measure-touchpad-pressure(1)</i> man
-page for more details.
+well as some statistics. The ``down`` column show that each sequence was
+considered logically down at some point (see the threholds in the last line),
+two of the sequences were considered thumbs. This is an interactive tool and
+its output may change frequently. Refer to the
+**libinput-measure-touchpad-pressure(1)** man page for more details.
 
 By default, this tool uses the :ref:`device-quirks` for the pressure range. To
-narrow down on the best values for your device, specify the 'logically down'
+narrow down on the best values for your device, adjust the thresholds using
+the keys q/a, w/s, e/d and r/f or specify the 'logically down'
 and 'logically up' pressure thresholds with the  ``--touch-thresholds``
 argument: ::
 
@@ -84,8 +107,10 @@ Once the thresholds are decided on (e.g. 10 and 8), they can be enabled with
      [Touchpad pressure override]
      MatchUdevType=touchpad
      MatchName=*SynPS/2 Synaptics TouchPad
-     MatchDMIModalias=dmi:*svnLENOVO:*:pvrThinkPadX230*
+     MatchDMIModalias=dmi:*:svnLENOVO:*:pvrThinkPadX230:*
      AttrPressureRange=10:8
+     AttrPalmPressureThreshold=150
+     AttrThumbPressureThreshold=100
 
 The file name **must** be ``/etc/libinput/local-overrides.quirks``. The
 The first line is the section name and can be free-form. The ``Match``
@@ -99,7 +124,7 @@ and product name (pn).
 Once in place, run the following command to verify the quirk is valid and
 works for your device: ::
 
-     $ sudo libinput list-quirks /dev/input/event10
+     $ sudo libinput quirks list /dev/input/event10
      AttrPressureRange=10:8
 
 Replace the event node with the one from your device. If the
@@ -157,7 +182,7 @@ The example output shows five completed touch sequences. For each, the
 respective minimum and maximum pressure values are printed as well as some
 statistics. The ``down`` and ``palm`` tags show that sequence was considered
 logically down or a palm at some point. This is an interactive tool and its
-output may change frequently. Refer to the <i>libinput-measure-touch-size(1)</i> man
+output may change frequently. Refer to the **libinput-measure-touch-size(1)** man
 page for more details.
 
 By default, this tool uses the :ref:`device-quirks` for the touch size range. To
@@ -181,7 +206,7 @@ Once the thresholds are decided on (e.g. 10 and 8), they can be enabled with
      [Touchpad touch size override]
      MatchUdevType=touchpad
      MatchName=*SynPS/2 Synaptics TouchPad
-     MatchDMIModalias=dmi:*svnLENOVO:*:pvrThinkPadX230*
+     MatchDMIModalias=dmi:*:svnLENOVO:*:pvrThinkPadX230:*
      AttrTouchSizeRange=10:8
 
 The first line is the match line and should be adjusted for the device name
@@ -193,7 +218,7 @@ and product name (pn).
 Once in place, run the following command to verify the quirk is valid and
 works for your device: ::
 
-     $ sudo libinput list-quirks /dev/input/event10
+     $ sudo libinput quirks list /dev/input/event10
      AttrTouchSizeRange=10:8
 
 Replace the event node with the one from your device. If the
@@ -207,4 +232,3 @@ the need for a restart.
 
 Once the touch size ranges are deemed correct, :ref:`reporting_bugs` "report a
 bug" to get the thresholds into the repository.
-

doc/user/touchpad-pressure.rst

@@ -56,4 +56,3 @@ these axes are supposed to be mapped, few devices forward reliable
 information. libinput uses these values together with a device-specific
 :ref:`device-quirks` entry. In other words, touch size detection does not work
 unless a device quirk is present for the device.
-

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

doc/user/trackpoint-configuration.rst

@@ -20,7 +20,7 @@ User-specific preferences can be adjusted with the
 The magic trackpoint multiplier
 ------------------------------------------------------------------------------
 
-To accomodate for the wildly different input data on trackpoint, libinput
+To accommodate for the wildly different input data on trackpoint, libinput
 uses a multiplier that is applied to input deltas. Trackpoints that send
 comparatively high deltas can be "slowed down", trackpoints that send low
 deltas can be "sped up" to match the expected range. The actual acceleration
@@ -78,7 +78,7 @@ installed.
      $ cd path/to/libinput.git
 
      # Use an approximate multiplier in the quirks file
-     $ cat > quirks/99-trackpont-override.quirks <<EOF
+     $ cat > quirks/99-trackpoint-override.quirks <<EOF
      [Trackpoint Override]
      MatchUdevType=pointingstick
      AttrTrackpointMultiplier=1.0
@@ -131,7 +131,7 @@ variation of the following is sufficient:
      [Trackpoint Override]
      MatchUdevType=pointingstick
      MatchName=*TPPS/2 IBM TrackPoint*
-     MatchDMIModalias=dmi:*svnLENOVO:*:pvrThinkPadT440p*
+     MatchDMIModalias=dmi:*:svnLENOVO:*:pvrThinkPadT440p:*
      AttrTrackpointMultiplier=1.0
 
 
@@ -152,4 +152,3 @@ has been removed. See :ref:`trackpoint_multiplier` for versions 1.12.x and later
 
 If using libinput version 1.11.x or earlier, please see
 `the 1.11.0 documentation <https://wayland.freedesktop.org/libinput/doc/1.11.0/trackpoints.html#trackpoint_range_measure>`_
-

doc/user/trackpoints.rst

@@ -5,7 +5,7 @@ Trackpoints and Pointing Sticks
 ==============================================================================
 
 This page provides an overview of trackpoint handling in libinput, also
-refered to as Pointing Stick or Trackstick. The device itself is usually a
+referred to as Pointing Stick or Trackstick. The device itself is usually a
 round plastic stick between the G, H and B keys with a set of buttons below
 the space bar.
 
@@ -50,7 +50,7 @@ decreases, the delta decrease first, then the reporting rate until the
 trackpoint is in a neutral state and no events are reported. Trackpoint data
 is hard to generalize, see
 `Observations on trackpoint input data
-<a href="https://who-t.blogspot.com/2018/06/observations-on-trackpoint-input-data.html">`_
+<https://who-t.blogspot.com/2018/06/observations-on-trackpoint-input-data.html>`_
 for more details.
 
 .. figure:: trackpoint-delta-illustration.svg
@@ -65,4 +65,3 @@ sufficient pressure to even get close to the maximum ranges.
 
 libinput provides a :ref:`Magic Trackpoint Multiplier
 <trackpoint_multiplier>` to normalize the trackpoint input data.
-

doc/user/troubleshooting.rst

@@ -14,3 +14,6 @@ Troubleshooting
    touchpad-pressure-debugging.rst
    trackpoint-configuration.rst
    tablet-debugging.rst
+   incorrectly-enabled-hires.rst
+   clickpad-with-right-button.rst
+   ignoring-devices.rst

doc/user/what-is-libinput.rst

@@ -131,7 +131,7 @@ Handled device types
 - Mice
 - Keyboards
 - Virtual absolute pointing devices such as those used by QEMU or VirtualBox
-- Switches (Lid Switch and Tablet Mode switch)
+- Switches (Lid Switch, Tablet Mode switch, and Keypad Slide switch)
 - Graphics tablets
 - :ref:`Trackpoints`
 

doc/user/wheel-api.rst

@@ -0,0 +1,183 @@
+.. _wheel_scrolling:
+
+==============================================================================
+Wheel scrolling
+==============================================================================
+
+libinput provides two events to handle wheel scrolling:
+
+- ``LIBINPUT_EVENT_POINTER_AXIS`` events are sent for regular wheel clicks,
+  usually those representing one detent on the device. These wheel clicks
+  usually require a rotation of 15 or 20 degrees.
+  **This event is deprecated as of libinput 1.19.**
+
+- ``LIBINPUT_EVENT_POINTER_SCROLL_WHEEL`` events are sent for regular and/or
+  high resolution wheel movements. High-resolution events are often 4 or 8
+  times more frequent than wheel clicks and require the device to be switched
+  into high-resolution mode (Linux kernel 5.0 and later). Where
+  high-resolution wheels are not provided by the kernel, libinput emulates
+  these events for regular wheel clicks.
+  **This event is available since libinput 1.19.**
+
+The events are separate for historical reasons. Both events are
+generated for the same device but are independent event streams. Callers
+must not assume any relation between the two, i.e. there is no guarantee
+that an axis event is sent before or after any specific high-resolution
+event and vice versa. Callers should not handle both events.
+
+.. warning:: do not handle both ``LIBINPUT_EVENT_POINTER_AXIS`` and
+   ``LIBINPUT_EVENT_POINTER_SCROLL_WHEEL``. Always use the latter where
+   possible, otherwise only use the former.
+
+Both events have their own set of APIs to access the data within:
+
+- ``LIBINPUT_EVENT_POINTER_AXIS``: Deprecated as of libinput 1.19, where
+  possible it is recommended to handle **only**
+  ``LIBINPUT_EVENT_POINTER_SCROLL_WHEEL``.
+
+  * ``libinput_event_pointer_get_axis_value()`` returns the angle of movement
+    in degrees.
+  * ``libinput_event_pointer_get_axis_source()`` returns the source of the
+    event: wheel, finger or continuous.
+  * ``libinput_event_pointer_get_axis_value_discrete()`` returns the number of
+    logical wheel clicks.
+
+- ``LIBINPUT_EVENT_POINTER_SCROLL_WHEEL`` available since libinput 1.19.
+
+  * ``libinput_event_pointer_get_scroll_value_v120()`` returns a value
+    normalized into the 0..120 range, see below. Any multiple of 120 should
+    be treated as one full wheel click.
+
+.. note:: Where possible, the ``libinput_event_pointer_get_axis_value()``,
+          ``libinput_event_pointer_get_axis_source()`` and
+          ``libinput_event_pointer_get_axis_value_discrete()`` API should be
+          avoided.
+
+------------------------------------------------------------------------------
+The v120 Wheel API
+------------------------------------------------------------------------------
+
+The ``v120`` value matches the Windows API for wheel scrolling. Wheel
+movements are normalized into multiples (or fractions) of 120 with each
+multiple of 120 representing one detent of movement. The ``v120`` API is the
+recommended API for callers that do not care about the exact physical
+motion and is the simplest API to handle high-resolution scrolling.
+
+Most wheels provide 24 detents per 360 degree rotation (click angle of 15),
+others provide 18 detents per 360 degree rotation (click angle 20). Mice
+falling outside these two are rare but do exist. Below is a table showing
+the various values for a single event, depending on the click angle of the
+wheel:
+
++-------------+------------+---------------+------+
+| Click angle | Axis value | Discrete value| v120 |
++=============+============+===============+======+
+| 15          |      15    | 1             | 120  |
++-------------+------------+---------------+------+
+| 20          |      20    | 1             | 120  |
++-------------+------------+---------------+------+
+
+Fast scrolling may trigger cover than one detent per event and thus each
+event may contain multiples of the value, discrete or v120 value:
+
++-------------+------------+---------------+------+
+| Click angle | Axis value | Discrete value| v120 |
++=============+============+===============+======+
+| 15          |      30    | 2             |  240 |
++-------------+------------+---------------+------+
+| 20          |      60    | 3             |  360 |
++-------------+------------+---------------+------+
+
+Scrolling on high-resolution wheels will produce fractions of 120, depending
+on the resolution of the wheel. The example below shows a mouse with click
+angle 15 and a resolution of 3 events per wheel click and a mouse with click
+angle 20 and a resolution of 2 events per wheel click.
+
++-------------+------------+---------------+------+
+| Click angle | Axis value | Discrete value| v120 |
++=============+============+===============+======+
+| 15          |      5     | 0             | 40   |
++-------------+------------+---------------+------+
+| 20          |     10     | 0             | 60   |
++-------------+------------+---------------+------+
+
+------------------------------------------------------------------------------
+Event sequences for high-resolution wheel mice
+------------------------------------------------------------------------------
+
+High-resolution scroll wheels provide multiple events for each detent is
+hit. For those mice, an event sequence covering two detents may look like
+this:
+
++--------------+---------+------------+---------------+------+
+| Event number |   Type  | Axis value | Discrete value| v120 |
++==============+=========+============+===============+======+
+| 1            |  WHEEL  |      5     | n/a           | 40   |
++--------------+---------+------------+---------------+------+
+| 2            |  WHEEL  |      5     | n/a           | 40   |
++--------------+---------+------------+---------------+------+
+| 3            |  WHEEL  |      5     | n/a           | 40   |
++--------------+---------+------------+---------------+------+
+| 4            |  AXIS   |     15     | 1             | 120  |
++--------------+---------+------------+---------------+------+
+| 5            |  WHEEL  |      5     | n/a           | 40   |
++--------------+---------+------------+---------------+------+
+| 6            |  WHEEL  |      5     | n/a           | 40   |
++--------------+---------+------------+---------------+------+
+| 7            |  AXIS   |     15     | 1             | 120  |
++--------------+---------+------------+---------------+------+
+
+The above assumes a click angle of 15 for the physical detents. Note how the
+second set of high-resolution events do **not** add up to a multiple of
+120 before the low-resolution event. A caller must not assume any relation
+between ``LIBINPUT_EVENT_POINTER_SCROLL_WHEEL`` and
+``LIBINPUT_EVENT_POINTER_AXIS``.
+
+Fast-scrolling on a high-resolution mouse may trigger multiple fractions per
+hardware scanout cycle and result in an event sequence like this:
+
++---------------+---------+------------+---------------+------+
+| Event number  |   Type  | Axis value | Discrete value| v120 |
++===============+=========+============+===============+======+
+| 1             |  WHEEL  |      5     | n/a           | 40   |
++---------------+---------+------------+---------------+------+
+| 2             |  WHEEL  |     10     | n/a           | 80   |
++---------------+---------+------------+---------------+------+
+| 3             |  AXIS   |     15     | 1             | 120  |
++---------------+---------+------------+---------------+------+
+| 4             |  WHEEL  |     10     | n/a           | 80   |
++---------------+---------+------------+---------------+------+
+| 5             |  WHEEL  |     10     | n/a           | 80   |
++---------------+---------+------------+---------------+------+
+| 6             |  AXIS   |     15     | 1             | 120  |
++---------------+---------+------------+---------------+------+
+| 7             |  WHEEL  |      5     | n/a           | 40   |
++---------------+---------+------------+---------------+------+
+
+Note how the first low-resolution event is sent at an accumulated 15
+degrees, the second at an accumulated 20 degrees. The libinput API does not
+specify the smallest fraction a wheel supports.
+
+------------------------------------------------------------------------------
+Event sequences for regular wheel mice
+------------------------------------------------------------------------------
+
+``LIBINPUT_EVENT_POINTER_SCROLL_WHEEL`` for low-resolution mice are virtually
+identical to ``LIBINPUT_EVENT_POINTER_AXIS`` events. Note that the discrete
+value is always 0 for ``LIBINPUT_EVENT_POINTER_SCROLL_WHEEL``.
+
++--------------+---------+------------+---------------+------+
+| Event number |   Type  | Axis value | Discrete value| v120 |
++==============+=========+============+===============+======+
+| 1            |  AXIS   |     15     | 1             | 120  |
++--------------+---------+------------+---------------+------+
+| 2            |  WHEEL  |     15     | n/a           | 120  |
++--------------+---------+------------+---------------+------+
+| 3            |  WHEEL  |     15     | n/a           | 120  |
++--------------+---------+------------+---------------+------+
+| 4            |  AXIS   |     15     | 1             | 120  |
++--------------+---------+------------+---------------+------+
+
+Note that the order of ``LIBINPUT_EVENT_POINTER_AXIS`` vs
+``LIBINPUT_EVENT_POINTER_SCROLL_WHEEL`` events is not guaranteed, as shown in
+the example above.

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

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
 /*
  * Input event codes
  *
@@ -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
@@ -439,10 +441,12 @@
 #define KEY_TITLE		0x171
 #define KEY_SUBTITLE		0x172
 #define KEY_ANGLE		0x173
-#define KEY_ZOOM		0x174
+#define KEY_FULL_SCREEN		0x174	/* AC View Toggle */
+#define KEY_ZOOM		KEY_FULL_SCREEN
 #define KEY_MODE		0x175
 #define KEY_KEYBOARD		0x176
-#define KEY_SCREEN		0x177
+#define KEY_ASPECT_RATIO	0x177	/* HUTRR37: Aspect */
+#define KEY_SCREEN		KEY_ASPECT_RATIO
 #define KEY_PC			0x178	/* Media Select Computer */
 #define KEY_TV			0x179	/* Media Select TV */
 #define KEY_TV2			0x17a	/* Media Select Cable */
@@ -513,6 +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
@@ -540,6 +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
@@ -593,8 +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 */
@@ -604,10 +619,30 @@
 #define KEY_SCREENSAVER		0x245	/* AL Screen Saver */
 #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
@@ -646,6 +681,110 @@
  */
 #define KEY_DATA			0x277
 #define KEY_ONSCREEN_KEYBOARD		0x278
+/* Electronic privacy screen control */
+#define KEY_PRIVACY_SCREEN_TOGGLE	0x279
+
+/* 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
+ * keyboards with these macro-keys the key-sequence to inject, or action to
+ * take, is all handled by software on the host side. So from the kernel's
+ * point of view these are just normal keys.
+ *
+ * The KEY_MACRO# codes below are intended for such keys, which may be labeled
+ * e.g. G1-G18, or S1 - S30. The KEY_MACRO# codes MUST NOT be used for keys
+ * where the marking on the key does indicate a defined meaning / purpose.
+ *
+ * The KEY_MACRO# codes MUST also NOT be used as fallback for when no existing
+ * KEY_FOO define matches the marking / purpose. In this case a new KEY_FOO
+ * define MUST be added.
+ */
+#define KEY_MACRO1			0x290
+#define KEY_MACRO2			0x291
+#define KEY_MACRO3			0x292
+#define KEY_MACRO4			0x293
+#define KEY_MACRO5			0x294
+#define KEY_MACRO6			0x295
+#define KEY_MACRO7			0x296
+#define KEY_MACRO8			0x297
+#define KEY_MACRO9			0x298
+#define KEY_MACRO10			0x299
+#define KEY_MACRO11			0x29a
+#define KEY_MACRO12			0x29b
+#define KEY_MACRO13			0x29c
+#define KEY_MACRO14			0x29d
+#define KEY_MACRO15			0x29e
+#define KEY_MACRO16			0x29f
+#define KEY_MACRO17			0x2a0
+#define KEY_MACRO18			0x2a1
+#define KEY_MACRO19			0x2a2
+#define KEY_MACRO20			0x2a3
+#define KEY_MACRO21			0x2a4
+#define KEY_MACRO22			0x2a5
+#define KEY_MACRO23			0x2a6
+#define KEY_MACRO24			0x2a7
+#define KEY_MACRO25			0x2a8
+#define KEY_MACRO26			0x2a9
+#define KEY_MACRO27			0x2aa
+#define KEY_MACRO28			0x2ab
+#define KEY_MACRO29			0x2ac
+#define KEY_MACRO30			0x2ad
+
+/*
+ * Some keyboards with the macro-keys described above have some extra keys
+ * for controlling the host-side software responsible for the macro handling:
+ * -A macro recording start/stop key. Note that not all keyboards which emit
+ *  KEY_MACRO_RECORD_START will also emit KEY_MACRO_RECORD_STOP if
+ *  KEY_MACRO_RECORD_STOP is not advertised, then KEY_MACRO_RECORD_START
+ *  should be interpreted as a recording start/stop toggle;
+ * -Keys for switching between different macro (pre)sets, either a key for
+ *  cycling through the configured presets or keys to directly select a preset.
+ */
+#define KEY_MACRO_RECORD_START		0x2b0
+#define KEY_MACRO_RECORD_STOP		0x2b1
+#define KEY_MACRO_PRESET_CYCLE		0x2b2
+#define KEY_MACRO_PRESET1		0x2b3
+#define KEY_MACRO_PRESET2		0x2b4
+#define KEY_MACRO_PRESET3		0x2b5
+
+/*
+ * Some keyboards have a buildin LCD panel where the contents are controlled
+ * by the host. Often these have a number of keys directly below the LCD
+ * intended for controlling a menu shown on the LCD. These keys often don't
+ * have any labeling so we just name them KEY_KBD_LCD_MENU#
+ */
+#define KEY_KBD_LCD_MENU1		0x2b8
+#define KEY_KBD_LCD_MENU2		0x2b9
+#define KEY_KBD_LCD_MENU3		0x2ba
+#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
@@ -751,6 +890,7 @@
 #define ABS_TOOL_WIDTH		0x1c
 
 #define ABS_VOLUME		0x20
+#define ABS_PROFILE		0x21
 
 #define ABS_MISC		0x28
 
@@ -805,7 +945,9 @@
 #define SW_LINEIN_INSERT	0x0d  /* set = inserted */
 #define SW_MUTE_DEVICE		0x0e  /* set = device disabled */
 #define SW_PEN_INSERTED		0x0f  /* set = pen inserted */
-#define SW_MAX			0x0f
+#define SW_MACHINE_COVER	0x10  /* set = cover closed */
+#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

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
 /*
  * Input event codes
  *
@@ -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
@@ -439,10 +441,12 @@
 #define KEY_TITLE		0x171
 #define KEY_SUBTITLE		0x172
 #define KEY_ANGLE		0x173
-#define KEY_ZOOM		0x174
+#define KEY_FULL_SCREEN		0x174	/* AC View Toggle */
+#define KEY_ZOOM		KEY_FULL_SCREEN
 #define KEY_MODE		0x175
 #define KEY_KEYBOARD		0x176
-#define KEY_SCREEN		0x177
+#define KEY_ASPECT_RATIO	0x177	/* HUTRR37: Aspect */
+#define KEY_SCREEN		KEY_ASPECT_RATIO
 #define KEY_PC			0x178	/* Media Select Computer */
 #define KEY_TV			0x179	/* Media Select TV */
 #define KEY_TV2			0x17a	/* Media Select Cable */
@@ -513,6 +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
@@ -540,6 +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
@@ -593,8 +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 */
@@ -604,10 +619,30 @@
 #define KEY_SCREENSAVER		0x245	/* AL Screen Saver */
 #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
@@ -646,6 +681,110 @@
  */
 #define KEY_DATA			0x277
 #define KEY_ONSCREEN_KEYBOARD		0x278
+/* Electronic privacy screen control */
+#define KEY_PRIVACY_SCREEN_TOGGLE	0x279
+
+/* 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
+ * keyboards with these macro-keys the key-sequence to inject, or action to
+ * take, is all handled by software on the host side. So from the kernel's
+ * point of view these are just normal keys.
+ *
+ * The KEY_MACRO# codes below are intended for such keys, which may be labeled
+ * e.g. G1-G18, or S1 - S30. The KEY_MACRO# codes MUST NOT be used for keys
+ * where the marking on the key does indicate a defined meaning / purpose.
+ *
+ * The KEY_MACRO# codes MUST also NOT be used as fallback for when no existing
+ * KEY_FOO define matches the marking / purpose. In this case a new KEY_FOO
+ * define MUST be added.
+ */
+#define KEY_MACRO1			0x290
+#define KEY_MACRO2			0x291
+#define KEY_MACRO3			0x292
+#define KEY_MACRO4			0x293
+#define KEY_MACRO5			0x294
+#define KEY_MACRO6			0x295
+#define KEY_MACRO7			0x296
+#define KEY_MACRO8			0x297
+#define KEY_MACRO9			0x298
+#define KEY_MACRO10			0x299
+#define KEY_MACRO11			0x29a
+#define KEY_MACRO12			0x29b
+#define KEY_MACRO13			0x29c
+#define KEY_MACRO14			0x29d
+#define KEY_MACRO15			0x29e
+#define KEY_MACRO16			0x29f
+#define KEY_MACRO17			0x2a0
+#define KEY_MACRO18			0x2a1
+#define KEY_MACRO19			0x2a2
+#define KEY_MACRO20			0x2a3
+#define KEY_MACRO21			0x2a4
+#define KEY_MACRO22			0x2a5
+#define KEY_MACRO23			0x2a6
+#define KEY_MACRO24			0x2a7
+#define KEY_MACRO25			0x2a8
+#define KEY_MACRO26			0x2a9
+#define KEY_MACRO27			0x2aa
+#define KEY_MACRO28			0x2ab
+#define KEY_MACRO29			0x2ac
+#define KEY_MACRO30			0x2ad
+
+/*
+ * Some keyboards with the macro-keys described above have some extra keys
+ * for controlling the host-side software responsible for the macro handling:
+ * -A macro recording start/stop key. Note that not all keyboards which emit
+ *  KEY_MACRO_RECORD_START will also emit KEY_MACRO_RECORD_STOP if
+ *  KEY_MACRO_RECORD_STOP is not advertised, then KEY_MACRO_RECORD_START
+ *  should be interpreted as a recording start/stop toggle;
+ * -Keys for switching between different macro (pre)sets, either a key for
+ *  cycling through the configured presets or keys to directly select a preset.
+ */
+#define KEY_MACRO_RECORD_START		0x2b0
+#define KEY_MACRO_RECORD_STOP		0x2b1
+#define KEY_MACRO_PRESET_CYCLE		0x2b2
+#define KEY_MACRO_PRESET1		0x2b3
+#define KEY_MACRO_PRESET2		0x2b4
+#define KEY_MACRO_PRESET3		0x2b5
+
+/*
+ * Some keyboards have a buildin LCD panel where the contents are controlled
+ * by the host. Often these have a number of keys directly below the LCD
+ * intended for controlling a menu shown on the LCD. These keys often don't
+ * have any labeling so we just name them KEY_KBD_LCD_MENU#
+ */
+#define KEY_KBD_LCD_MENU1		0x2b8
+#define KEY_KBD_LCD_MENU2		0x2b9
+#define KEY_KBD_LCD_MENU3		0x2ba
+#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
@@ -751,6 +890,7 @@
 #define ABS_TOOL_WIDTH		0x1c
 
 #define ABS_VOLUME		0x20
+#define ABS_PROFILE		0x21
 
 #define ABS_MISC		0x28
 
@@ -805,7 +945,9 @@
 #define SW_LINEIN_INSERT	0x0d  /* set = inserted */
 #define SW_MUTE_DEVICE		0x0e  /* set = device disabled */
 #define SW_PEN_INSERTED		0x0f  /* set = pen inserted */
-#define SW_MAX			0x0f
+#define SW_MACHINE_COVER	0x10  /* set = cover closed */
+#define SW_USB_INSERT		0x11  /* set = USB audio device connected */
+#define SW_MAX			0x11
 #define SW_CNT			(SW_MAX+1)
 
 /*

include/valgrind/valgrind.h

@@ -89,7 +89,7 @@
         || (__VALGRIND_MAJOR__ == 3 && __VALGRIND_MINOR__ >= 6))
 */
 #define __VALGRIND_MAJOR__    3
-#define __VALGRIND_MINOR__    15
+#define __VALGRIND_MINOR__    18
 
 
 #include <stdarg.h>
@@ -110,6 +110,8 @@
 */
 #undef PLAT_x86_darwin
 #undef PLAT_amd64_darwin
+#undef PLAT_x86_freebsd
+#undef PLAT_amd64_freebsd
 #undef PLAT_x86_win32
 #undef PLAT_amd64_win64
 #undef PLAT_x86_linux
@@ -122,6 +124,7 @@
 #undef PLAT_s390x_linux
 #undef PLAT_mips32_linux
 #undef PLAT_mips64_linux
+#undef PLAT_nanomips_linux
 #undef PLAT_x86_solaris
 #undef PLAT_amd64_solaris
 
@@ -130,12 +133,17 @@
 #  define PLAT_x86_darwin 1
 #elif defined(__APPLE__) && defined(__x86_64__)
 #  define PLAT_amd64_darwin 1
-#elif (defined(__MINGW32__) && !defined(__MINGW64__)) \
+#elif defined(__FreeBSD__) && defined(__i386__)
+#  define PLAT_x86_freebsd 1
+#elif defined(__FreeBSD__) && defined(__amd64__)
+#  define PLAT_amd64_freebsd 1
+#elif (defined(__MINGW32__) && defined(__i386__)) \
       || defined(__CYGWIN32__) \
       || (defined(_WIN32) && defined(_M_IX86))
 #  define PLAT_x86_win32 1
-#elif defined(__MINGW64__) \
-      || (defined(_WIN64) && defined(_M_X64))
+#elif (defined(__MINGW32__) && defined(__x86_64__)) \
+      || (defined(_WIN32) && defined(_M_X64))
+/* __MINGW32__ and _WIN32 are defined in 64 bit mode as well. */
 #  define PLAT_amd64_win64 1
 #elif defined(__linux__) && defined(__i386__)
 #  define PLAT_x86_linux 1
@@ -157,8 +165,10 @@
 #  define PLAT_s390x_linux 1
 #elif defined(__linux__) && defined(__mips__) && (__mips==64)
 #  define PLAT_mips64_linux 1
-#elif defined(__linux__) && defined(__mips__) && (__mips!=64)
+#elif defined(__linux__) && defined(__mips__) && (__mips==32)
 #  define PLAT_mips32_linux 1
+#elif defined(__linux__) && defined(__nanomips__)
+#  define PLAT_nanomips_linux 1
 #elif defined(__sun) && defined(__i386__)
 #  define PLAT_x86_solaris 1
 #elif defined(__sun) && defined(__x86_64__)
@@ -254,7 +264,7 @@
 
 #if defined(PLAT_x86_linux)  ||  defined(PLAT_x86_darwin)  \
     ||  (defined(PLAT_x86_win32) && defined(__GNUC__)) \
-    ||  defined(PLAT_x86_solaris)
+    ||  defined(PLAT_x86_solaris) || defined(PLAT_x86_freebsd)
 
 typedef
    struct {
@@ -394,6 +404,7 @@ valgrind_do_client_request_expr(uintptr_t _zzq_default, uintptr_t _zzq_request,
 
 #if defined(PLAT_amd64_linux)  ||  defined(PLAT_amd64_darwin) \
     ||  defined(PLAT_amd64_solaris) \
+    ||  defined(PLAT_amd64_freebsd) \
     ||  (defined(PLAT_amd64_win64) && defined(__GNUC__))
 
 typedef
@@ -872,7 +883,8 @@ typedef
                     /* results = r3 */                           \
                     "lgr %0, 3\n\t"                              \
                     : "=d" (_zzq_result)                         \
-                    : "a" (&_zzq_args[0]), "0" (_zzq_default)    \
+                    : "a" (&_zzq_args[0]),                       \
+                      "0" ((unsigned long int)_zzq_default)      \
                     : "cc", "2", "3", "memory"                   \
                    );                                            \
    _zzq_result;                                                  \
@@ -1045,6 +1057,75 @@ typedef
 
 #endif /* PLAT_mips64_linux */
 
+#if defined(PLAT_nanomips_linux)
+
+typedef
+   struct {
+      unsigned int nraddr; /* where's the code? */
+   }
+   OrigFn;
+/*
+   8000 c04d  srl  zero, zero, 13
+   8000 c05d  srl  zero, zero, 29
+   8000 c043  srl  zero, zero,  3
+   8000 c053  srl  zero, zero, 19
+*/
+
+#define __SPECIAL_INSTRUCTION_PREAMBLE "srl[32] $zero, $zero, 13 \n\t" \
+                                       "srl[32] $zero, $zero, 29 \n\t" \
+                                       "srl[32] $zero, $zero, 3  \n\t" \
+                                       "srl[32] $zero, $zero, 19 \n\t"
+
+#define VALGRIND_DO_CLIENT_REQUEST_EXPR(                          \
+       _zzq_default, _zzq_request,                                \
+       _zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5)     \
+  __extension__                                                   \
+  ({ volatile unsigned int _zzq_args[6];                          \
+    volatile unsigned int _zzq_result;                            \
+    _zzq_args[0] = (unsigned int)(_zzq_request);                  \
+    _zzq_args[1] = (unsigned int)(_zzq_arg1);                     \
+    _zzq_args[2] = (unsigned int)(_zzq_arg2);                     \
+    _zzq_args[3] = (unsigned int)(_zzq_arg3);                     \
+    _zzq_args[4] = (unsigned int)(_zzq_arg4);                     \
+    _zzq_args[5] = (unsigned int)(_zzq_arg5);                     \
+    __asm__ volatile("move $a7, %1\n\t" /* default */             \
+                     "move $t0, %2\n\t" /* ptr */                 \
+                     __SPECIAL_INSTRUCTION_PREAMBLE               \
+                     /* $a7 = client_request( $t0 ) */            \
+                     "or[32] $t0, $t0, $t0\n\t"                   \
+                     "move %0, $a7\n\t"     /* result */          \
+                     : "=r" (_zzq_result)                         \
+                     : "r" (_zzq_default), "r" (&_zzq_args[0])    \
+                     : "$a7", "$t0", "memory");                   \
+    _zzq_result;                                                  \
+  })
+
+#define VALGRIND_GET_NR_CONTEXT(_zzq_rlval)                         \
+  { volatile OrigFn* _zzq_orig = &(_zzq_rlval);                     \
+    volatile unsigned long int __addr;                              \
+    __asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE                 \
+                     /* $a7 = guest_NRADDR */                       \
+                     "or[32] $t1, $t1, $t1\n\t"                     \
+                     "move %0, $a7"     /*result*/                  \
+                     : "=r" (__addr)                                \
+                     :                                              \
+                     : "$a7");                                      \
+    _zzq_orig->nraddr = __addr;                                     \
+  }
+
+#define VALGRIND_CALL_NOREDIR_T9                                    \
+                     __SPECIAL_INSTRUCTION_PREAMBLE                 \
+                     /* call-noredir $25 */                         \
+                     "or[32] $t2, $t2, $t2\n\t"
+
+#define VALGRIND_VEX_INJECT_IR()                                    \
+ do {                                                               \
+    __asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE                 \
+                     "or[32] $t3, $t3, $t3\n\t"                     \
+                    );                                              \
+ } while (0)
+
+#endif
 /* Insert assembly code for other platforms here... */
 
 #endif /* NVALGRIND */
@@ -1145,7 +1226,7 @@ typedef
 /* ----------------- x86-{linux,darwin,solaris} ---------------- */
 
 #if defined(PLAT_x86_linux)  ||  defined(PLAT_x86_darwin) \
-    ||  defined(PLAT_x86_solaris)
+    ||  defined(PLAT_x86_solaris)  || defined(PLAT_x86_freebsd)
 
 /* These regs are trashed by the hidden call.  No need to mention eax
    as gcc can already see that, plus causes gcc to bomb. */
@@ -1577,7 +1658,7 @@ typedef
 /* ---------------- amd64-{linux,darwin,solaris} --------------- */
 
 #if defined(PLAT_amd64_linux)  ||  defined(PLAT_amd64_darwin) \
-    ||  defined(PLAT_amd64_solaris)
+    ||  defined(PLAT_amd64_solaris)  ||  defined(PLAT_amd64_freebsd)
 
 /* ARGREGS: rdi rsi rdx rcx r8 r9 (the rest on stack in R-to-L order) */
 
@@ -4687,8 +4768,16 @@ typedef
    r14 in s390_irgen_noredir (VEX/priv/guest_s390_irgen.c) to give the
    function a proper return address. All others are ABI defined call
    clobbers. */
-#define __CALLER_SAVED_REGS "0","1","2","3","4","5","14", \
-                           "f0","f1","f2","f3","f4","f5","f6","f7"
+#if defined(__VX__) || defined(__S390_VX__)
+#define __CALLER_SAVED_REGS "0", "1", "2", "3", "4", "5", "14",   \
+      "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7",             \
+      "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15",       \
+      "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23",     \
+      "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31"
+#else
+#define __CALLER_SAVED_REGS "0", "1", "2", "3", "4", "5", "14",   \
+      "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7"
+#endif
 
 /* Nb: Although r11 is modified in the asm snippets below (inside
    VALGRIND_CFI_PROLOGUE) it is not listed in the clobber section, for
@@ -4710,9 +4799,9 @@ typedef
          "aghi 15,-160\n\t"                                      \
          "lg 1, 0(1)\n\t"  /* target->r1 */                      \
          VALGRIND_CALL_NOREDIR_R1                                \
-         "lgr %0, 2\n\t"                                         \
          "aghi 15,160\n\t"                                       \
          VALGRIND_CFI_EPILOGUE                                   \
+         "lgr %0, 2\n\t"                                         \
          : /*out*/   "=d" (_res)                                 \
          : /*in*/    "d" (&_argvec[0]) __FRAME_POINTER           \
          : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"7"     \
@@ -4734,9 +4823,9 @@ typedef
          "lg 2, 8(1)\n\t"                                        \
          "lg 1, 0(1)\n\t"                                        \
          VALGRIND_CALL_NOREDIR_R1                                \
-         "lgr %0, 2\n\t"                                         \
          "aghi 15,160\n\t"                                       \
          VALGRIND_CFI_EPILOGUE                                   \
+         "lgr %0, 2\n\t"                                         \
          : /*out*/   "=d" (_res)                                 \
          : /*in*/    "a" (&_argvec[0]) __FRAME_POINTER           \
          : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"7"     \
@@ -4759,9 +4848,9 @@ typedef
          "lg 3,16(1)\n\t"                                        \
          "lg 1, 0(1)\n\t"                                        \
          VALGRIND_CALL_NOREDIR_R1                                \
-         "lgr %0, 2\n\t"                                         \
          "aghi 15,160\n\t"                                       \
          VALGRIND_CFI_EPILOGUE                                   \
+         "lgr %0, 2\n\t"                                         \
          : /*out*/   "=d" (_res)                                 \
          : /*in*/    "a" (&_argvec[0]) __FRAME_POINTER           \
          : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"7"     \
@@ -4786,9 +4875,9 @@ typedef
          "lg 4,24(1)\n\t"                                        \
          "lg 1, 0(1)\n\t"                                        \
          VALGRIND_CALL_NOREDIR_R1                                \
-         "lgr %0, 2\n\t"                                         \
          "aghi 15,160\n\t"                                       \
          VALGRIND_CFI_EPILOGUE                                   \
+         "lgr %0, 2\n\t"                                         \
          : /*out*/   "=d" (_res)                                 \
          : /*in*/    "a" (&_argvec[0]) __FRAME_POINTER           \
          : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"7"     \
@@ -4815,9 +4904,9 @@ typedef
          "lg 5,32(1)\n\t"                                        \
          "lg 1, 0(1)\n\t"                                        \
          VALGRIND_CALL_NOREDIR_R1                                \
-         "lgr %0, 2\n\t"                                         \
          "aghi 15,160\n\t"                                       \
          VALGRIND_CFI_EPILOGUE                                   \
+         "lgr %0, 2\n\t"                                         \
          : /*out*/   "=d" (_res)                                 \
          : /*in*/    "a" (&_argvec[0]) __FRAME_POINTER           \
          : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"7"     \
@@ -4846,9 +4935,9 @@ typedef
          "lg 6,40(1)\n\t"                                        \
          "lg 1, 0(1)\n\t"                                        \
          VALGRIND_CALL_NOREDIR_R1                                \
-         "lgr %0, 2\n\t"                                         \
          "aghi 15,160\n\t"                                       \
          VALGRIND_CFI_EPILOGUE                                   \
+         "lgr %0, 2\n\t"                                         \
          : /*out*/   "=d" (_res)                                 \
          : /*in*/    "a" (&_argvec[0]) __FRAME_POINTER           \
          : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"6","7" \
@@ -4880,9 +4969,9 @@ typedef
          "mvc 160(8,15), 48(1)\n\t"                              \
          "lg 1, 0(1)\n\t"                                        \
          VALGRIND_CALL_NOREDIR_R1                                \
-         "lgr %0, 2\n\t"                                         \
          "aghi 15,168\n\t"                                       \
          VALGRIND_CFI_EPILOGUE                                   \
+         "lgr %0, 2\n\t"                                         \
          : /*out*/   "=d" (_res)                                 \
          : /*in*/    "a" (&_argvec[0]) __FRAME_POINTER           \
          : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"6","7" \
@@ -4916,9 +5005,9 @@ typedef
          "mvc 168(8,15), 56(1)\n\t"                              \
          "lg 1, 0(1)\n\t"                                        \
          VALGRIND_CALL_NOREDIR_R1                                \
-         "lgr %0, 2\n\t"                                         \
          "aghi 15,176\n\t"                                       \
          VALGRIND_CFI_EPILOGUE                                   \
+         "lgr %0, 2\n\t"                                         \
          : /*out*/   "=d" (_res)                                 \
          : /*in*/    "a" (&_argvec[0]) __FRAME_POINTER           \
          : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"6","7" \
@@ -4954,9 +5043,9 @@ typedef
          "mvc 176(8,15), 64(1)\n\t"                              \
          "lg 1, 0(1)\n\t"                                        \
          VALGRIND_CALL_NOREDIR_R1                                \
-         "lgr %0, 2\n\t"                                         \
          "aghi 15,184\n\t"                                       \
          VALGRIND_CFI_EPILOGUE                                   \
+         "lgr %0, 2\n\t"                                         \
          : /*out*/   "=d" (_res)                                 \
          : /*in*/    "a" (&_argvec[0]) __FRAME_POINTER           \
          : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"6","7" \
@@ -4994,9 +5083,9 @@ typedef
          "mvc 184(8,15), 72(1)\n\t"                              \
          "lg 1, 0(1)\n\t"                                        \
          VALGRIND_CALL_NOREDIR_R1                                \
-         "lgr %0, 2\n\t"                                         \
          "aghi 15,192\n\t"                                       \
          VALGRIND_CFI_EPILOGUE                                   \
+         "lgr %0, 2\n\t"                                         \
          : /*out*/   "=d" (_res)                                 \
          : /*in*/    "a" (&_argvec[0]) __FRAME_POINTER           \
          : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"6","7" \
@@ -5036,9 +5125,9 @@ typedef
          "mvc 192(8,15), 80(1)\n\t"                              \
          "lg 1, 0(1)\n\t"                                        \
          VALGRIND_CALL_NOREDIR_R1                                \
-         "lgr %0, 2\n\t"                                         \
          "aghi 15,200\n\t"                                       \
          VALGRIND_CFI_EPILOGUE                                   \
+         "lgr %0, 2\n\t"                                         \
          : /*out*/   "=d" (_res)                                 \
          : /*in*/    "a" (&_argvec[0]) __FRAME_POINTER           \
          : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"6","7" \
@@ -5080,9 +5169,9 @@ typedef
          "mvc 200(8,15), 88(1)\n\t"                              \
          "lg 1, 0(1)\n\t"                                        \
          VALGRIND_CALL_NOREDIR_R1                                \
-         "lgr %0, 2\n\t"                                         \
          "aghi 15,208\n\t"                                       \
          VALGRIND_CFI_EPILOGUE                                   \
+         "lgr %0, 2\n\t"                                         \
          : /*out*/   "=d" (_res)                                 \
          : /*in*/    "a" (&_argvec[0]) __FRAME_POINTER           \
          : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"6","7" \
@@ -5126,9 +5215,9 @@ typedef
          "mvc 208(8,15), 96(1)\n\t"                              \
          "lg 1, 0(1)\n\t"                                        \
          VALGRIND_CALL_NOREDIR_R1                                \
-         "lgr %0, 2\n\t"                                         \
          "aghi 15,216\n\t"                                       \
          VALGRIND_CFI_EPILOGUE                                   \
+         "lgr %0, 2\n\t"                                         \
          : /*out*/   "=d" (_res)                                 \
          : /*in*/    "a" (&_argvec[0]) __FRAME_POINTER           \
          : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS,"6","7" \
@@ -5678,6 +5767,422 @@ typedef
 
 #endif /* PLAT_mips32_linux */
 
+/* ------------------------- nanomips-linux -------------------- */
+
+#if defined(PLAT_nanomips_linux)
+
+/* These regs are trashed by the hidden call. */
+#define __CALLER_SAVED_REGS "$t4", "$t5", "$a0", "$a1", "$a2",     \
+"$a3", "$a4", "$a5", "$a6", "$a7", "$t0", "$t1", "$t2", "$t3",     \
+"$t8","$t9", "$at"
+
+/* These CALL_FN_ macros assume that on mips-linux, sizeof(unsigned
+   long) == 4. */
+
+#define CALL_FN_W_v(lval, orig)                                   \
+   do {                                                           \
+      volatile OrigFn        _orig = (orig);                      \
+      volatile unsigned long _argvec[1];                          \
+      volatile unsigned long _res;                                \
+      _argvec[0] = (unsigned long)_orig.nraddr;                   \
+      __asm__ volatile(                                           \
+         "lw $t9, 0(%1)\n\t"                                      \
+         VALGRIND_CALL_NOREDIR_T9                                 \
+         "move %0, $a0\n"                                         \
+         : /*out*/   "=r" (_res)                                  \
+         : /*in*/    "r" (&_argvec[0])                            \
+         : /*trash*/ "memory", __CALLER_SAVED_REGS                \
+      );                                                          \
+      lval = (__typeof__(lval)) _res;                             \
+   } while (0)
+
+#define CALL_FN_W_W(lval, orig, arg1)                             \
+   do {                                                           \
+      volatile OrigFn        _orig = (orig);                      \
+      volatile unsigned long _argvec[2];                          \
+      volatile unsigned long _res;                                \
+      _argvec[0] = (unsigned long)_orig.nraddr;                   \
+      _argvec[1] = (unsigned long)(arg1);                         \
+      __asm__ volatile(                                           \
+         "lw $t9, 0(%1)\n\t"                                      \
+         "lw $a0, 4(%1)\n\t"                                      \
+         VALGRIND_CALL_NOREDIR_T9                                 \
+         "move %0, $a0\n"                                         \
+         : /*out*/   "=r" (_res)                                  \
+         : /*in*/    "r" (&_argvec[0])                            \
+         : /*trash*/ "memory", __CALLER_SAVED_REGS                \
+      );                                                          \
+      lval = (__typeof__(lval)) _res;                             \
+   } while (0)
+
+#define CALL_FN_W_WW(lval, orig, arg1,arg2)                       \
+   do {                                                           \
+      volatile OrigFn        _orig = (orig);                      \
+      volatile unsigned long _argvec[3];                          \
+      volatile unsigned long _res;                                \
+      _argvec[0] = (unsigned long)_orig.nraddr;                   \
+      _argvec[1] = (unsigned long)(arg1);                         \
+      _argvec[2] = (unsigned long)(arg2);                         \
+      __asm__ volatile(                                           \
+         "lw $t9, 0(%1)\n\t"                                      \
+         "lw $a0, 4(%1)\n\t"                                      \
+         "lw $a1, 8(%1)\n\t"                                      \
+         VALGRIND_CALL_NOREDIR_T9                                 \
+         "move %0, $a0\n"                                         \
+         : /*out*/   "=r" (_res)                                  \
+         : /*in*/    "r" (&_argvec[0])                            \
+         : /*trash*/ "memory", __CALLER_SAVED_REGS                \
+      );                                                          \
+      lval = (__typeof__(lval)) _res;                             \
+   } while (0)
+
+#define CALL_FN_W_WWW(lval, orig, arg1,arg2,arg3)                 \
+   do {                                                           \
+      volatile OrigFn        _orig = (orig);                      \
+      volatile unsigned long _argvec[4];                          \
+      volatile unsigned long _res;                                \
+      _argvec[0] = (unsigned long)_orig.nraddr;                   \
+      _argvec[1] = (unsigned long)(arg1);                         \
+      _argvec[2] = (unsigned long)(arg2);                         \
+      _argvec[3] = (unsigned long)(arg3);                         \
+      __asm__ volatile(                                           \
+         "lw $t9, 0(%1)\n\t"                                      \
+         "lw $a0, 4(%1)\n\t"                                      \
+         "lw $a1, 8(%1)\n\t"                                      \
+         "lw $a2,12(%1)\n\t"                                      \
+         VALGRIND_CALL_NOREDIR_T9                                 \
+         "move %0, $a0\n"                                         \
+         : /*out*/   "=r" (_res)                                  \
+         : /*in*/    "r" (&_argvec[0])                            \
+         : /*trash*/ "memory", __CALLER_SAVED_REGS                \
+      );                                                          \
+      lval = (__typeof__(lval)) _res;                             \
+   } while (0)
+
+#define CALL_FN_W_WWWW(lval, orig, arg1,arg2,arg3,arg4)           \
+   do {                                                           \
+      volatile OrigFn        _orig = (orig);                      \
+      volatile unsigned long _argvec[5];                          \
+      volatile unsigned long _res;                                \
+      _argvec[0] = (unsigned long)_orig.nraddr;                   \
+      _argvec[1] = (unsigned long)(arg1);                         \
+      _argvec[2] = (unsigned long)(arg2);                         \
+      _argvec[3] = (unsigned long)(arg3);                         \
+      _argvec[4] = (unsigned long)(arg4);                         \
+      __asm__ volatile(                                           \
+         "lw $t9, 0(%1)\n\t"                                      \
+         "lw $a0, 4(%1)\n\t"                                      \
+         "lw $a1, 8(%1)\n\t"                                      \
+         "lw $a2,12(%1)\n\t"                                      \
+         "lw $a3,16(%1)\n\t"                                      \
+         VALGRIND_CALL_NOREDIR_T9                                 \
+         "move %0, $a0\n"                                         \
+         : /*out*/   "=r" (_res)                                  \
+         : /*in*/    "r" (&_argvec[0])                            \
+         : /*trash*/ "memory", __CALLER_SAVED_REGS                \
+      );                                                          \
+      lval = (__typeof__(lval)) _res;                             \
+   } while (0)
+
+#define CALL_FN_W_5W(lval, orig, arg1,arg2,arg3,arg4,arg5)        \
+   do {                                                           \
+      volatile OrigFn        _orig = (orig);                      \
+      volatile unsigned long _argvec[6];                          \
+      volatile unsigned long _res;                                \
+      _argvec[0] = (unsigned long)_orig.nraddr;                   \
+      _argvec[1] = (unsigned long)(arg1);                         \
+      _argvec[2] = (unsigned long)(arg2);                         \
+      _argvec[3] = (unsigned long)(arg3);                         \
+      _argvec[4] = (unsigned long)(arg4);                         \
+      _argvec[5] = (unsigned long)(arg5);                         \
+      __asm__ volatile(                                           \
+         "lw $t9, 0(%1)\n\t"                                      \
+         "lw $a0, 4(%1)\n\t"                                      \
+         "lw $a1, 8(%1)\n\t"                                      \
+         "lw $a2,12(%1)\n\t"                                      \
+         "lw $a3,16(%1)\n\t"                                      \
+         "lw $a4,20(%1)\n\t"                                      \
+         VALGRIND_CALL_NOREDIR_T9                                 \
+         "move %0, $a0\n"                                         \
+         : /*out*/   "=r" (_res)                                  \
+         : /*in*/    "r" (&_argvec[0])                            \
+         : /*trash*/ "memory", __CALLER_SAVED_REGS                \
+      );                                                          \
+      lval = (__typeof__(lval)) _res;                             \
+   } while (0)
+#define CALL_FN_W_6W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6)   \
+   do {                                                           \
+      volatile OrigFn        _orig = (orig);                      \
+      volatile unsigned long _argvec[7];                          \
+      volatile unsigned long _res;                                \
+      _argvec[0] = (unsigned long)_orig.nraddr;                   \
+      _argvec[1] = (unsigned long)(arg1);                         \
+      _argvec[2] = (unsigned long)(arg2);                         \
+      _argvec[3] = (unsigned long)(arg3);                         \
+      _argvec[4] = (unsigned long)(arg4);                         \
+      _argvec[5] = (unsigned long)(arg5);                         \
+      _argvec[6] = (unsigned long)(arg6);                         \
+      __asm__ volatile(                                           \
+         "lw $t9, 0(%1)\n\t"                                      \
+         "lw $a0, 4(%1)\n\t"                                      \
+         "lw $a1, 8(%1)\n\t"                                      \
+         "lw $a2,12(%1)\n\t"                                      \
+         "lw $a3,16(%1)\n\t"                                      \
+         "lw $a4,20(%1)\n\t"                                      \
+         "lw $a5,24(%1)\n\t"                                      \
+         VALGRIND_CALL_NOREDIR_T9                                 \
+         "move %0, $a0\n"                                         \
+         : /*out*/   "=r" (_res)                                  \
+         : /*in*/    "r" (&_argvec[0])                            \
+         : /*trash*/ "memory", __CALLER_SAVED_REGS                \
+      );                                                          \
+      lval = (__typeof__(lval)) _res;                             \
+   } while (0)
+
+#define CALL_FN_W_7W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6,   \
+                                 arg7)                            \
+   do {                                                           \
+      volatile OrigFn        _orig = (orig);                      \
+      volatile unsigned long _argvec[8];                          \
+      volatile unsigned long _res;                                \
+      _argvec[0] = (unsigned long)_orig.nraddr;                   \
+      _argvec[1] = (unsigned long)(arg1);                         \
+      _argvec[2] = (unsigned long)(arg2);                         \
+      _argvec[3] = (unsigned long)(arg3);                         \
+      _argvec[4] = (unsigned long)(arg4);                         \
+      _argvec[5] = (unsigned long)(arg5);                         \
+      _argvec[6] = (unsigned long)(arg6);                         \
+      _argvec[7] = (unsigned long)(arg7);                         \
+      __asm__ volatile(                                           \
+         "lw $t9, 0(%1)\n\t"                                      \
+         "lw $a0, 4(%1)\n\t"                                      \
+         "lw $a1, 8(%1)\n\t"                                      \
+         "lw $a2,12(%1)\n\t"                                      \
+         "lw $a3,16(%1)\n\t"                                      \
+         "lw $a4,20(%1)\n\t"                                      \
+         "lw $a5,24(%1)\n\t"                                      \
+         "lw $a6,28(%1)\n\t"                                      \
+         VALGRIND_CALL_NOREDIR_T9                                 \
+         "move %0, $a0\n"                                         \
+         : /*out*/   "=r" (_res)                                  \
+         : /*in*/    "r" (&_argvec[0])                            \
+         : /*trash*/ "memory", __CALLER_SAVED_REGS                \
+      );                                                          \
+      lval = (__typeof__(lval)) _res;                             \
+   } while (0)
+
+#define CALL_FN_W_8W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6,   \
+                                 arg7,arg8)                       \
+   do {                                                           \
+      volatile OrigFn        _orig = (orig);                      \
+      volatile unsigned long _argvec[9];                          \
+      volatile unsigned long _res;                                \
+      _argvec[0] = (unsigned long)_orig.nraddr;                   \
+      _argvec[1] = (unsigned long)(arg1);                         \
+      _argvec[2] = (unsigned long)(arg2);                         \
+      _argvec[3] = (unsigned long)(arg3);                         \
+      _argvec[4] = (unsigned long)(arg4);                         \
+      _argvec[5] = (unsigned long)(arg5);                         \
+      _argvec[6] = (unsigned long)(arg6);                         \
+      _argvec[7] = (unsigned long)(arg7);                         \
+      _argvec[8] = (unsigned long)(arg8);                         \
+      __asm__ volatile(                                           \
+         "lw $t9, 0(%1)\n\t"                                      \
+         "lw $a0, 4(%1)\n\t"                                      \
+         "lw $a1, 8(%1)\n\t"                                      \
+         "lw $a2,12(%1)\n\t"                                      \
+         "lw $a3,16(%1)\n\t"                                      \
+         "lw $a4,20(%1)\n\t"                                      \
+         "lw $a5,24(%1)\n\t"                                      \
+         "lw $a6,28(%1)\n\t"                                      \
+         "lw $a7,32(%1)\n\t"                                      \
+         VALGRIND_CALL_NOREDIR_T9                                 \
+         "move %0, $a0\n"                                         \
+         : /*out*/   "=r" (_res)                                  \
+         : /*in*/    "r" (&_argvec[0])                            \
+         : /*trash*/ "memory", __CALLER_SAVED_REGS                \
+      );                                                          \
+      lval = (__typeof__(lval)) _res;                             \
+   } while (0)
+
+#define CALL_FN_W_9W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6,   \
+                                 arg7,arg8,arg9)                  \
+   do {                                                           \
+      volatile OrigFn        _orig = (orig);                      \
+      volatile unsigned long _argvec[10];                         \
+      volatile unsigned long _res;                                \
+      _argvec[0] = (unsigned long)_orig.nraddr;                   \
+      _argvec[1] = (unsigned long)(arg1);                         \
+      _argvec[2] = (unsigned long)(arg2);                         \
+      _argvec[3] = (unsigned long)(arg3);                         \
+      _argvec[4] = (unsigned long)(arg4);                         \
+      _argvec[5] = (unsigned long)(arg5);                         \
+      _argvec[6] = (unsigned long)(arg6);                         \
+      _argvec[7] = (unsigned long)(arg7);                         \
+      _argvec[8] = (unsigned long)(arg8);                         \
+      _argvec[9] = (unsigned long)(arg9);                         \
+      __asm__ volatile(                                           \
+         "addiu $sp, $sp, -16  \n\t"                              \
+         "lw $t9,36(%1)        \n\t"                              \
+         "sw $t9, 0($sp)       \n\t"                              \
+         "lw $t9, 0(%1)        \n\t"                              \
+         "lw $a0, 4(%1)        \n\t"                              \
+         "lw $a1, 8(%1)        \n\t"                              \
+         "lw $a2,12(%1)        \n\t"                              \
+         "lw $a3,16(%1)        \n\t"                              \
+         "lw $a4,20(%1)        \n\t"                              \
+         "lw $a5,24(%1)        \n\t"                              \
+         "lw $a6,28(%1)        \n\t"                              \
+         "lw $a7,32(%1)        \n\t"                              \
+         VALGRIND_CALL_NOREDIR_T9                                 \
+         "move %0, $a0         \n\t"                              \
+         "addiu $sp, $sp, 16   \n\t"                              \
+         : /*out*/   "=r" (_res)                                  \
+         : /*in*/    "r" (&_argvec[0])                            \
+         : /*trash*/ "memory", __CALLER_SAVED_REGS                \
+      );                                                          \
+      lval = (__typeof__(lval)) _res;                             \
+   } while (0)
+
+#define CALL_FN_W_10W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6,  \
+                                  arg7,arg8,arg9,arg10)           \
+   do {                                                           \
+      volatile OrigFn        _orig = (orig);                      \
+      volatile unsigned long _argvec[11];                         \
+      volatile unsigned long _res;                                \
+      _argvec[0] = (unsigned long)_orig.nraddr;                   \
+      _argvec[1] = (unsigned long)(arg1);                         \
+      _argvec[2] = (unsigned long)(arg2);                         \
+      _argvec[3] = (unsigned long)(arg3);                         \
+      _argvec[4] = (unsigned long)(arg4);                         \
+      _argvec[5] = (unsigned long)(arg5);                         \
+      _argvec[6] = (unsigned long)(arg6);                         \
+      _argvec[7] = (unsigned long)(arg7);                         \
+      _argvec[8] = (unsigned long)(arg8);                         \
+      _argvec[9] = (unsigned long)(arg9);                         \
+      _argvec[10] = (unsigned long)(arg10);                       \
+      __asm__ volatile(                                           \
+         "addiu $sp, $sp, -16  \n\t"                              \
+         "lw $t9,36(%1)        \n\t"                              \
+         "sw $t9, 0($sp)       \n\t"                              \
+         "lw $t9,40(%1)        \n\t"                              \
+         "sw $t9, 4($sp)       \n\t"                              \
+         "lw $t9, 0(%1)        \n\t"                              \
+         "lw $a0, 4(%1)        \n\t"                              \
+         "lw $a1, 8(%1)        \n\t"                              \
+         "lw $a2,12(%1)        \n\t"                              \
+         "lw $a3,16(%1)        \n\t"                              \
+         "lw $a4,20(%1)        \n\t"                              \
+         "lw $a5,24(%1)        \n\t"                              \
+         "lw $a6,28(%1)        \n\t"                              \
+         "lw $a7,32(%1)        \n\t"                              \
+         VALGRIND_CALL_NOREDIR_T9                                 \
+         "move %0, $a0         \n\t"                              \
+         "addiu $sp, $sp, 16   \n\t"                              \
+         : /*out*/   "=r" (_res)                                  \
+         : /*in*/    "r" (&_argvec[0])                            \
+         : /*trash*/ "memory", __CALLER_SAVED_REGS                \
+      );                                                          \
+      lval = (__typeof__(lval)) _res;                             \
+   } while (0)
+
+#define CALL_FN_W_11W(lval, orig, arg1,arg2,arg3,arg4,arg5,       \
+                                  arg6,arg7,arg8,arg9,arg10,      \
+                                  arg11)                          \
+   do {                                                           \
+      volatile OrigFn        _orig = (orig);                      \
+      volatile unsigned long _argvec[12];                         \
+      volatile unsigned long _res;                                \
+      _argvec[0] = (unsigned long)_orig.nraddr;                   \
+      _argvec[1] = (unsigned long)(arg1);                         \
+      _argvec[2] = (unsigned long)(arg2);                         \
+      _argvec[3] = (unsigned long)(arg3);                         \
+      _argvec[4] = (unsigned long)(arg4);                         \
+      _argvec[5] = (unsigned long)(arg5);                         \
+      _argvec[6] = (unsigned long)(arg6);                         \
+      _argvec[7] = (unsigned long)(arg7);                         \
+      _argvec[8] = (unsigned long)(arg8);                         \
+      _argvec[9] = (unsigned long)(arg9);                         \
+      _argvec[10] = (unsigned long)(arg10);                       \
+      _argvec[11] = (unsigned long)(arg11);                       \
+      __asm__ volatile(                                           \
+         "addiu $sp, $sp, -16  \n\t"                              \
+         "lw $t9,36(%1)        \n\t"                              \
+         "sw $t9, 0($sp)       \n\t"                              \
+         "lw $t9,40(%1)        \n\t"                              \
+         "sw $t9, 4($sp)       \n\t"                              \
+         "lw $t9,44(%1)        \n\t"                              \
+         "sw $t9, 8($sp)       \n\t"                              \
+         "lw $t9, 0(%1)        \n\t"                              \
+         "lw $a0, 4(%1)        \n\t"                              \
+         "lw $a1, 8(%1)        \n\t"                              \
+         "lw $a2,12(%1)        \n\t"                              \
+         "lw $a3,16(%1)        \n\t"                              \
+         "lw $a4,20(%1)        \n\t"                              \
+         "lw $a5,24(%1)        \n\t"                              \
+         "lw $a6,28(%1)        \n\t"                              \
+         "lw $a7,32(%1)        \n\t"                              \
+         VALGRIND_CALL_NOREDIR_T9                                 \
+         "move %0, $a0         \n\t"                              \
+         "addiu $sp, $sp, 16   \n\t"                              \
+         : /*out*/   "=r" (_res)                                  \
+         : /*in*/    "r" (&_argvec[0])                            \
+         : /*trash*/ "memory", __CALLER_SAVED_REGS                \
+      );                                                          \
+      lval = (__typeof__(lval)) _res;                             \
+   } while (0)
+
+#define CALL_FN_W_12W(lval, orig, arg1,arg2,arg3,arg4,arg5,       \
+                                  arg6,arg7,arg8,arg9,arg10,      \
+                                  arg11,arg12)                    \
+   do {                                                           \
+      volatile OrigFn        _orig = (orig);                      \
+      volatile unsigned long _argvec[13];                         \
+      volatile unsigned long _res;                                \
+      _argvec[0] = (unsigned long)_orig.nraddr;                   \
+      _argvec[1] = (unsigned long)(arg1);                         \
+      _argvec[2] = (unsigned long)(arg2);                         \
+      _argvec[3] = (unsigned long)(arg3);                         \
+      _argvec[4] = (unsigned long)(arg4);                         \
+      _argvec[5] = (unsigned long)(arg5);                         \
+      _argvec[6] = (unsigned long)(arg6);                         \
+      _argvec[7] = (unsigned long)(arg7);                         \
+      _argvec[8] = (unsigned long)(arg8);                         \
+      _argvec[9] = (unsigned long)(arg9);                         \
+      _argvec[10] = (unsigned long)(arg10);                       \
+      _argvec[11] = (unsigned long)(arg11);                       \
+      _argvec[12] = (unsigned long)(arg12);                       \
+      __asm__ volatile(                                           \
+         "addiu $sp, $sp, -16  \n\t"                              \
+         "lw $t9,36(%1)        \n\t"                              \
+         "sw $t9, 0($sp)       \n\t"                              \
+         "lw $t9,40(%1)        \n\t"                              \
+         "sw $t9, 4($sp)       \n\t"                              \
+         "lw $t9,44(%1)        \n\t"                              \
+         "sw $t9, 8($sp)       \n\t"                              \
+         "lw $t9,48(%1)        \n\t"                              \
+         "sw $t9,12($sp)       \n\t"                              \
+         "lw $t9, 0(%1)        \n\t"                              \
+         "lw $a0, 4(%1)        \n\t"                              \
+         "lw $a1, 8(%1)        \n\t"                              \
+         "lw $a2,12(%1)        \n\t"                              \
+         "lw $a3,16(%1)        \n\t"                              \
+         "lw $a4,20(%1)        \n\t"                              \
+         "lw $a5,24(%1)        \n\t"                              \
+         "lw $a6,28(%1)        \n\t"                              \
+         "lw $a7,32(%1)        \n\t"                              \
+         VALGRIND_CALL_NOREDIR_T9                                 \
+         "move %0, $a0         \n\t"                              \
+         "addiu $sp, $sp, 16   \n\t"                              \
+         : /*out*/   "=r" (_res)                                  \
+         : /*in*/    "r" (&_argvec[0])                            \
+         : /*trash*/ "memory", __CALLER_SAVED_REGS                \
+      );                                                          \
+      lval = (__typeof__(lval)) _res;                             \
+   } while (0)
+
+#endif /* PLAT_nanomips_linux */
+
 /* ------------------------- mips64-linux ------------------------- */
 
 #if defined(PLAT_mips64_linux)
@@ -6146,6 +6651,10 @@ typedef
              command. */
           VG_USERREQ__GDB_MONITOR_COMMAND = 0x1202,
 
+          /* Allows the client program to change a dynamic command line
+             option.  */
+          VG_USERREQ__CLO_CHANGE = 0x1203,
+
           /* These are useful and can be interpreted by any tool that
              tracks malloc() et al, by using vg_replace_malloc.c. */
           VG_USERREQ__MALLOCLIKE_BLOCK = 0x1301,
@@ -6628,6 +7137,14 @@ VALGRIND_PRINTF_BACKTRACE(const char *format, ...)
                                    command, 0, 0, 0, 0)
 
 
+/* Change the value of a dynamic command line option.
+   Note that unknown or not dynamically changeable options
+   will cause a warning message to be output.  */
+#define VALGRIND_CLO_CHANGE(option)                           \
+   VALGRIND_DO_CLIENT_REQUEST_STMT(VG_USERREQ__CLO_CHANGE, \
+                                   option, 0, 0, 0, 0)
+
+
 #undef PLAT_x86_darwin
 #undef PLAT_amd64_darwin
 #undef PLAT_x86_win32
@@ -6641,6 +7158,7 @@ VALGRIND_PRINTF_BACKTRACE(const char *format, ...)
 #undef PLAT_s390x_linux
 #undef PLAT_mips32_linux
 #undef PLAT_mips64_linux
+#undef PLAT_nanomips_linux
 #undef PLAT_x86_solaris
 #undef PLAT_amd64_solaris
 

meson_options.txt

@@ -10,6 +10,10 @@ option('libwacom',
        type: 'boolean',
        value: true,
        description: 'Use libwacom for tablet identification (default=true)')
+option('mtdev',
+       type: 'boolean',
+       value: true,
+       description: 'Use mtdev for multitouch protocol A devices (default=true)')
 option('debug-gui',
        type: 'boolean',
        value: true,
@@ -24,8 +28,8 @@ option('install-tests',
        description: 'Install the libinput test command [default=false]')
 option('documentation',
        type: 'boolean',
-       value: true,
-       description: 'Build the documentation [default=true]')
+       value: false,
+       description: 'Build the documentation [default=false]')
 option('coverity',
        type: 'boolean',
        value: false,
@@ -34,3 +38,15 @@ option('zshcompletiondir',
        type: 'string',
        value: '',
        description: 'Directory for zsh completion scripts ["no" disables]')
+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-tablet-mouse-control.lua

@@ -0,0 +1,121 @@
+-- SPDX-License-Identifier: MIT
+--
+-- This is an example libinput plugin
+--
+-- This plugin controls a mouse/pointer from a tablet device. This
+-- effectively hides stylus interactions and sends pointer events
+-- instead. In other words: mouse emulation for tablets, implemented
+-- by (remote) controlling a mouse device. This allows using a
+-- tablet stylus as a mouse replacement without tablet limitations
+-- from compositors or clients. Note that axis usually needed for
+-- drawing (like pressure, tilt or distance) are no longer emitted
+-- when this plugin is active and a mouse is connected. When no
+-- mouse is connected, this plugin doesn't change tablet events,
+-- thus the stylus works like a normal stylus.
+
+-- UNCOMMENT THIS LINE TO ACTIVATE THE PLUGIN
+-- libinput:register({1})
+
+-- globals
+pointer_device = nil
+tablet_device = nil
+maximum_x = nil
+maximum_y = nil
+
+function adjust_for_aspect_ratio(y)
+    -- adjust y to match monitor 21:9 aspect ratio
+    local adj_maximum_y = maximum_x * 1440 / 3440
+    return math.floor(math.min(y * maximum_y / adj_maximum_y, maximum_y + 1))
+end
+
+function on_tablet_frame(device, frame, time_in_microseconds)
+    -- emit tablet frame when there is no pointer device
+    if not pointer_device then return nil end
+
+    -- map tablet frame to pointer frame
+    local events = {}
+    for _, v in ipairs(frame) do
+        if v.usage == evdev.ABS_MISC then
+            -- save a few cycles on Wacom tablets by discarding a
+            -- proximity in / out frame early, non-Wacom tablets should
+            -- use BTN_TOOL_PEN/RUBBER/... instead
+            return {}
+        elseif v.usage == evdev.ABS_X then
+            table.insert(events, { usage = evdev.ABS_X, value = v.value })
+        elseif v.usage == evdev.ABS_Y then
+            -- uncomment the next two lines and comment the original line
+            -- for configuring aspect correction, see
+            -- adjust_for_aspect_ratio() for details and configuration
+
+            -- local adj_value = adjust_for_aspect_ratio(v.value)
+            -- table.insert(events, { usage = evdev.ABS_Y, value = adj_value })
+            table.insert(events, { usage = evdev.ABS_Y, value = v.value })
+        elseif v.usage == evdev.BTN_TOUCH then
+            table.insert(events, { usage = evdev.BTN_LEFT, value = v.value })
+        elseif v.usage == evdev.BTN_STYLUS then
+            table.insert(events, { usage = evdev.BTN_RIGHT, value = v.value })
+        elseif v.usage == evdev.BTN_STYLUS2 then
+            table.insert(events, { usage = evdev.BTN_MIDDLE, value = v.value })
+        end
+    end
+
+    -- emit pointer frame, if any
+    if #events > 0 then pointer_device:append_frame(events) end
+
+    -- discard tablet frame
+    return {}
+end
+
+function on_tablet_removed(device)
+    libinput:log_info("Remove tablet device")
+    tablet_device = nil
+end
+
+function on_pointer_removed(device)
+    libinput:log_info("Remove pointer device")
+    pointer_device = nil
+end
+
+function setup()
+    if not pointer_device or not tablet_device then return end
+
+    libinput:log_info("Controlling '" .. pointer_device:name() .. "' with '" .. tablet_device:name() .. "'")
+
+    -- fetch absinfos from tablet
+    local absinfo_x = {}
+    local absinfo_y = {}
+    for a, b in pairs(tablet_device:absinfos()) do
+        if a == evdev.ABS_X then absinfo_x = b end
+        if a == evdev.ABS_Y then absinfo_y = b end
+    end
+
+    -- copy max values for aspect ratio correction later on
+    maximum_x = absinfo_x.maximum
+    maximum_y = absinfo_y.maximum
+
+    -- copy absinfos to pointer device
+    pointer_device:set_absinfo(evdev.ABS_X, absinfo_x)
+    pointer_device:set_absinfo(evdev.ABS_Y, absinfo_y)
+
+    -- setup listeners
+    pointer_device:connect("device-removed", on_pointer_removed)
+    tablet_device:connect("device-removed", on_tablet_removed)
+    tablet_device:connect("evdev-frame", on_tablet_frame)
+end
+
+function on_new_device(device)
+    local udev = device:udev_properties()
+    if udev["ID_INPUT_TABLET"] and not udev["ID_INPUT_TABLET_PAD"] then
+        libinput:log_info("Found tablet device")
+        tablet_device = device
+        setup()
+    end
+    if udev["ID_INPUT_MOUSE"] then
+        libinput:log_info("Found pointer device")
+        pointer_device = device
+        setup()
+    end
+end
+
+-- setup listener
+libinput:connect("new-evdev-device", on_new_device)

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 +1,17 @@
+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',
+	'10-tablet-mouse-control.lua',
+]
+
+fs = import('fs')
+foreach plugin : plugins
+	fs.copyfile(plugin)
+endforeach

quirks/10-generic-keyboard.quirks

@@ -9,3 +9,23 @@ AttrKeyboardIntegration=internal
 MatchUdevType=keyboard
 MatchBus=bluetooth
 AttrKeyboardIntegration=external
+
+# Detachable devices usually have the tablet part buttons wired as ps2 keyboard,
+# don't disable them when tablet-mode switch is in effect.
+# DMI Chassis Type 20h (32 decimal) is Detachable as per SMBIOS specification.
+[Detachable Device Buttons]
+MatchBus=ps2
+MatchUdevType=keyboard
+MatchDMIModalias=dmi:*:ct32:*
+ModelTabletModeNoSuspend=1
+
+# Tablet devices usually have the tablet part buttons wired as ps2 keyboard,
+# despite being tablets some of them, e.g. Microsoft Surface Laptop Studio,
+# expose tablet-mode switch, so don't disable the ps2 keyboard.
+# Tablets that don't expose tablet-mode switch won't have any diference.
+# DMI Chassis Type 1Eh (30 decimal) is Tablet as per SMBIOS specification.
+[Tablet Device Buttons]
+MatchBus=ps2
+MatchUdevType=keyboard
+MatchDMIModalias=dmi:*:ct30:*
+ModelTabletModeNoSuspend=1

quirks/10-generic-lid.quirks

@@ -1,11 +0,0 @@
-# Do not edit this file, it will be overwritten on update
-
-[Lid Switch Ct9]
-MatchName=*Lid Switch*
-MatchDMIModalias=dmi:*:ct9:*
-AttrLidSwitchReliability=reliable
-
-[Lid Switch Ct10]
-MatchName=*Lid Switch*
-MatchDMIModalias=dmi:*:ct10:*
-AttrLidSwitchReliability=reliable

quirks/10-generic-mouse.quirks

@@ -0,0 +1,6 @@
+# Do not edit this file, it will be overwritten on update
+
+# https://gitlab.freedesktop.org/libinput/libinput/-/issues/656
+[Emulated Mouse]
+MatchName=ImPS/2 Generic Wheel Mouse
+ModelBouncingKeys=1