Systemd/hwdb.d/parse_hwdb.py
Peter Hutterer 9f50cdd34a hwdb: remove support for MOUSE_WHEEL_TILT_*
This has now been deprecated in libinput, the only known user of this
property. It was never set for any device and weston and mutter, maybe
other compositors, never added the code required to parse it.

The benefit we could get in the UI from handling tilt differently to
wheel is tiny and the lack of support shows that it isn't of interest to
anyone. Let's remove this.

See also
https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/444
2020-05-24 12:24:16 +02:00

247 lines
9.4 KiB
Python
Executable file

#!/usr/bin/env python3
# SPDX-License-Identifier: MIT
#
# This file is distributed under the MIT license, see below.
#
# The MIT License (MIT)
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
import glob
import string
import sys
import os
try:
from pyparsing import (Word, White, Literal, ParserElement, Regex, LineEnd,
OneOrMore, Combine, Or, Optional, Suppress, Group,
nums, alphanums, printables,
stringEnd, pythonStyleComment, QuotedString,
ParseBaseException)
except ImportError:
print('pyparsing is not available')
sys.exit(77)
try:
from evdev.ecodes import ecodes
except ImportError:
ecodes = None
print('WARNING: evdev is not available')
try:
from functools import lru_cache
except ImportError:
# don't do caching on old python
lru_cache = lambda: (lambda f: f)
EOL = LineEnd().suppress()
EMPTYLINE = LineEnd()
COMMENTLINE = pythonStyleComment + EOL
INTEGER = Word(nums)
STRING = QuotedString('"')
REAL = Combine((INTEGER + Optional('.' + Optional(INTEGER))) ^ ('.' + INTEGER))
SIGNED_REAL = Combine(Optional(Word('-+')) + REAL)
UDEV_TAG = Word(string.ascii_uppercase, alphanums + '_')
TYPES = {'mouse': ('usb', 'bluetooth', 'ps2', '*'),
'evdev': ('name', 'atkbd', 'input'),
'id-input': ('modalias'),
'touchpad': ('i8042', 'rmi', 'bluetooth', 'usb'),
'joystick': ('i8042', 'rmi', 'bluetooth', 'usb'),
'keyboard': ('name', ),
'sensor': ('modalias', ),
}
@lru_cache()
def hwdb_grammar():
ParserElement.setDefaultWhitespaceChars('')
prefix = Or(category + ':' + Or(conn) + ':'
for category, conn in TYPES.items())
matchline = Combine(prefix + Word(printables + ' ' + '®')) + EOL
propertyline = (White(' ', exact=1).suppress() +
Combine(UDEV_TAG - '=' - Word(alphanums + '_=:@*.!-;, "') - Optional(pythonStyleComment)) +
EOL)
propertycomment = White(' ', exact=1) + pythonStyleComment + EOL
group = (OneOrMore(matchline('MATCHES*') ^ COMMENTLINE.suppress()) -
OneOrMore(propertyline('PROPERTIES*') ^ propertycomment.suppress()) -
(EMPTYLINE ^ stringEnd()).suppress())
commentgroup = OneOrMore(COMMENTLINE).suppress() - EMPTYLINE.suppress()
grammar = OneOrMore(Group(group)('GROUPS*') ^ commentgroup) + stringEnd()
return grammar
@lru_cache()
def property_grammar():
ParserElement.setDefaultWhitespaceChars(' ')
dpi_setting = (Optional('*')('DEFAULT') + INTEGER('DPI') + Suppress('@') + INTEGER('HZ'))('SETTINGS*')
mount_matrix_row = SIGNED_REAL + ',' + SIGNED_REAL + ',' + SIGNED_REAL
mount_matrix = (mount_matrix_row + ';' + mount_matrix_row + ';' + mount_matrix_row)('MOUNT_MATRIX')
props = (('MOUSE_DPI', Group(OneOrMore(dpi_setting))),
('MOUSE_WHEEL_CLICK_ANGLE', INTEGER),
('MOUSE_WHEEL_CLICK_ANGLE_HORIZONTAL', INTEGER),
('MOUSE_WHEEL_CLICK_COUNT', INTEGER),
('MOUSE_WHEEL_CLICK_COUNT_HORIZONTAL', INTEGER),
('ID_INPUT', Literal('1')),
('ID_INPUT_ACCELEROMETER', Literal('1')),
('ID_INPUT_JOYSTICK', Literal('1')),
('ID_INPUT_KEY', Literal('1')),
('ID_INPUT_KEYBOARD', Literal('1')),
('ID_INPUT_MOUSE', Literal('1')),
('ID_INPUT_POINTINGSTICK', Literal('1')),
('ID_INPUT_SWITCH', Literal('1')),
('ID_INPUT_TABLET', Literal('1')),
('ID_INPUT_TABLET_PAD', Literal('1')),
('ID_INPUT_TOUCHPAD', Literal('1')),
('ID_INPUT_TOUCHSCREEN', Literal('1')),
('ID_INPUT_TRACKBALL', Literal('1')),
('POINTINGSTICK_SENSITIVITY', INTEGER),
('POINTINGSTICK_CONST_ACCEL', REAL),
('ID_INPUT_JOYSTICK_INTEGRATION', Or(('internal', 'external'))),
('ID_INPUT_TOUCHPAD_INTEGRATION', Or(('internal', 'external'))),
('XKB_FIXED_LAYOUT', STRING),
('XKB_FIXED_VARIANT', STRING),
('XKB_FIXED_MODEL', STRING),
('KEYBOARD_LED_NUMLOCK', Literal('0')),
('KEYBOARD_LED_CAPSLOCK', Literal('0')),
('ACCEL_MOUNT_MATRIX', mount_matrix),
('ACCEL_LOCATION', Or(('display', 'base'))),
('PROXIMITY_NEAR_LEVEL', INTEGER),
)
fixed_props = [Literal(name)('NAME') - Suppress('=') - val('VALUE')
for name, val in props]
kbd_props = [Regex(r'KEYBOARD_KEY_[0-9a-f]+')('NAME')
- Suppress('=') -
('!' ^ (Optional('!') - Word(alphanums + '_')))('VALUE')
]
abs_props = [Regex(r'EVDEV_ABS_[0-9a-f]{2}')('NAME')
- Suppress('=') -
Word(nums + ':')('VALUE')
]
grammar = Or(fixed_props + kbd_props + abs_props) + EOL
return grammar
ERROR = False
def error(fmt, *args, **kwargs):
global ERROR
ERROR = True
print(fmt.format(*args, **kwargs))
def convert_properties(group):
matches = [m[0] for m in group.MATCHES]
props = [p[0] for p in group.PROPERTIES]
return matches, props
def parse(fname):
grammar = hwdb_grammar()
try:
with open(fname, 'r', encoding='UTF-8') as f:
parsed = grammar.parseFile(f)
except ParseBaseException as e:
error('Cannot parse {}: {}', fname, e)
return []
return [convert_properties(g) for g in parsed.GROUPS]
def check_match_uniqueness(groups):
matches = sum((group[0] for group in groups), [])
matches.sort()
prev = None
for match in matches:
if match == prev:
error('Match {!r} is duplicated', match)
prev = match
def check_one_default(prop, settings):
defaults = [s for s in settings if s.DEFAULT]
if len(defaults) > 1:
error('More than one star entry: {!r}', prop)
def check_one_mount_matrix(prop, value):
numbers = [s for s in value if s not in {';', ','}]
if len(numbers) != 9:
error('Wrong accel matrix: {!r}', prop)
try:
numbers = [abs(float(number)) for number in numbers]
except ValueError:
error('Wrong accel matrix: {!r}', prop)
bad_x, bad_y, bad_z = max(numbers[0:3]) == 0, max(numbers[3:6]) == 0, max(numbers[6:9]) == 0
if bad_x or bad_y or bad_z:
error('Mount matrix is all zero in {} row: {!r}',
'x' if bad_x else ('y' if bad_y else 'z'),
prop)
def check_one_keycode(prop, value):
if value != '!' and ecodes is not None:
key = 'KEY_' + value.upper()
if not (key in ecodes or
value.upper() in ecodes or
# new keys added in kernel 5.5
'KBD_LCD_MENU' in key):
error('Keycode {} unknown', key)
def check_properties(groups):
grammar = property_grammar()
for matches, props in groups:
prop_names = set()
for prop in props:
# print('--', prop)
prop = prop.partition('#')[0].rstrip()
try:
parsed = grammar.parseString(prop)
except ParseBaseException as e:
error('Failed to parse: {!r}', prop)
continue
# print('{!r}'.format(parsed))
if parsed.NAME in prop_names:
error('Property {} is duplicated', parsed.NAME)
prop_names.add(parsed.NAME)
if parsed.NAME == 'MOUSE_DPI':
check_one_default(prop, parsed.VALUE.SETTINGS)
elif parsed.NAME == 'ACCEL_MOUNT_MATRIX':
check_one_mount_matrix(prop, parsed.VALUE)
elif parsed.NAME.startswith('KEYBOARD_KEY_'):
val = parsed.VALUE if isinstance(parsed.VALUE, str) else parsed.VALUE[0]
check_one_keycode(prop, val)
def print_summary(fname, groups):
n_matches = sum(len(matches) for matches, props in groups)
n_props = sum(len(props) for matches, props in groups)
print('{}: {} match groups, {} matches, {} properties'
.format(fname, len(groups), n_matches, n_props))
if n_matches == 0 or n_props == 0:
error('{}: no matches or props'.format(fname))
if __name__ == '__main__':
args = sys.argv[1:] or sorted(glob.glob(os.path.dirname(sys.argv[0]) + '/[67][0-9]-*.hwdb'))
for fname in args:
groups = parse(fname)
print_summary(fname, groups)
check_match_uniqueness(groups)
check_properties(groups)
sys.exit(ERROR)