d7d31692bf
Chromebook keyboards have a top row which generates f1-f10 key codes but the keys have media symbols printed on them. A simple scan code to key code mapping to the correct media keys makes the f1-f10 inaccessible. To properly use the keyboard a custom key code to symbol mapping in xbk is required (a variant of the chromebook xkb model is already upstream). Other devices have similar problems. This commit makes it possible to specify which xkb model should be used for a specific device by setting XKB_FIXED_MODEL.
247 lines
9.4 KiB
Python
Executable file
247 lines
9.4 KiB
Python
Executable file
#!/usr/bin/env python3
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# SPDX-License-Identifier: MIT
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#
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# This file is distributed under the MIT license, see below.
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#
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# The MIT License (MIT)
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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import glob
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import string
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import sys
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import os
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try:
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from pyparsing import (Word, White, Literal, ParserElement, Regex, LineEnd,
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OneOrMore, Combine, Or, Optional, Suppress, Group,
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nums, alphanums, printables,
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stringEnd, pythonStyleComment, QuotedString,
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ParseBaseException)
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except ImportError:
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print('pyparsing is not available')
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sys.exit(77)
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try:
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from evdev.ecodes import ecodes
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except ImportError:
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ecodes = None
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print('WARNING: evdev is not available')
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try:
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from functools import lru_cache
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except ImportError:
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# don't do caching on old python
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lru_cache = lambda: (lambda f: f)
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EOL = LineEnd().suppress()
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EMPTYLINE = LineEnd()
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COMMENTLINE = pythonStyleComment + EOL
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INTEGER = Word(nums)
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STRING = QuotedString('"')
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REAL = Combine((INTEGER + Optional('.' + Optional(INTEGER))) ^ ('.' + INTEGER))
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SIGNED_REAL = Combine(Optional(Word('-+')) + REAL)
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UDEV_TAG = Word(string.ascii_uppercase, alphanums + '_')
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TYPES = {'mouse': ('usb', 'bluetooth', 'ps2', '*'),
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'evdev': ('name', 'atkbd', 'input'),
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'id-input': ('modalias'),
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'touchpad': ('i8042', 'rmi', 'bluetooth', 'usb'),
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'joystick': ('i8042', 'rmi', 'bluetooth', 'usb'),
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'keyboard': ('name', ),
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'sensor': ('modalias', ),
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}
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@lru_cache()
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def hwdb_grammar():
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ParserElement.setDefaultWhitespaceChars('')
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prefix = Or(category + ':' + Or(conn) + ':'
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for category, conn in TYPES.items())
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matchline = Combine(prefix + Word(printables + ' ' + '®')) + EOL
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propertyline = (White(' ', exact=1).suppress() +
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Combine(UDEV_TAG - '=' - Word(alphanums + '_=:@*.!-;, "') - Optional(pythonStyleComment)) +
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EOL)
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propertycomment = White(' ', exact=1) + pythonStyleComment + EOL
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group = (OneOrMore(matchline('MATCHES*') ^ COMMENTLINE.suppress()) -
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OneOrMore(propertyline('PROPERTIES*') ^ propertycomment.suppress()) -
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(EMPTYLINE ^ stringEnd()).suppress())
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commentgroup = OneOrMore(COMMENTLINE).suppress() - EMPTYLINE.suppress()
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grammar = OneOrMore(Group(group)('GROUPS*') ^ commentgroup) + stringEnd()
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return grammar
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@lru_cache()
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def property_grammar():
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ParserElement.setDefaultWhitespaceChars(' ')
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dpi_setting = (Optional('*')('DEFAULT') + INTEGER('DPI') + Suppress('@') + INTEGER('HZ'))('SETTINGS*')
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mount_matrix_row = SIGNED_REAL + ',' + SIGNED_REAL + ',' + SIGNED_REAL
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mount_matrix = (mount_matrix_row + ';' + mount_matrix_row + ';' + mount_matrix_row)('MOUNT_MATRIX')
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props = (('MOUSE_DPI', Group(OneOrMore(dpi_setting))),
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('MOUSE_WHEEL_CLICK_ANGLE', INTEGER),
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('MOUSE_WHEEL_CLICK_ANGLE_HORIZONTAL', INTEGER),
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('MOUSE_WHEEL_CLICK_COUNT', INTEGER),
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('MOUSE_WHEEL_CLICK_COUNT_HORIZONTAL', INTEGER),
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('ID_INPUT', Literal('1')),
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('ID_INPUT_ACCELEROMETER', Literal('1')),
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('ID_INPUT_JOYSTICK', Literal('1')),
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('ID_INPUT_KEY', Literal('1')),
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('ID_INPUT_KEYBOARD', Literal('1')),
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('ID_INPUT_MOUSE', Literal('1')),
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('ID_INPUT_POINTINGSTICK', Literal('1')),
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('ID_INPUT_SWITCH', Literal('1')),
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('ID_INPUT_TABLET', Literal('1')),
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('ID_INPUT_TABLET_PAD', Literal('1')),
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('ID_INPUT_TOUCHPAD', Literal('1')),
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('ID_INPUT_TOUCHSCREEN', Literal('1')),
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('ID_INPUT_TRACKBALL', Literal('1')),
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('MOUSE_WHEEL_TILT_HORIZONTAL', Literal('1')),
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('MOUSE_WHEEL_TILT_VERTICAL', Literal('1')),
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('POINTINGSTICK_SENSITIVITY', INTEGER),
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('POINTINGSTICK_CONST_ACCEL', REAL),
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('ID_INPUT_JOYSTICK_INTEGRATION', Or(('internal', 'external'))),
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('ID_INPUT_TOUCHPAD_INTEGRATION', Or(('internal', 'external'))),
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('XKB_FIXED_LAYOUT', STRING),
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('XKB_FIXED_VARIANT', STRING),
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('XKB_FIXED_MODEL', STRING),
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('KEYBOARD_LED_NUMLOCK', Literal('0')),
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('KEYBOARD_LED_CAPSLOCK', Literal('0')),
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('ACCEL_MOUNT_MATRIX', mount_matrix),
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('ACCEL_LOCATION', Or(('display', 'base'))),
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)
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fixed_props = [Literal(name)('NAME') - Suppress('=') - val('VALUE')
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for name, val in props]
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kbd_props = [Regex(r'KEYBOARD_KEY_[0-9a-f]+')('NAME')
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- Suppress('=') -
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('!' ^ (Optional('!') - Word(alphanums + '_')))('VALUE')
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]
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abs_props = [Regex(r'EVDEV_ABS_[0-9a-f]{2}')('NAME')
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- Suppress('=') -
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Word(nums + ':')('VALUE')
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]
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grammar = Or(fixed_props + kbd_props + abs_props) + EOL
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return grammar
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ERROR = False
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def error(fmt, *args, **kwargs):
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global ERROR
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ERROR = True
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print(fmt.format(*args, **kwargs))
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def convert_properties(group):
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matches = [m[0] for m in group.MATCHES]
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props = [p[0] for p in group.PROPERTIES]
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return matches, props
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def parse(fname):
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grammar = hwdb_grammar()
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try:
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with open(fname, 'r', encoding='UTF-8') as f:
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parsed = grammar.parseFile(f)
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except ParseBaseException as e:
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error('Cannot parse {}: {}', fname, e)
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return []
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return [convert_properties(g) for g in parsed.GROUPS]
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def check_match_uniqueness(groups):
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matches = sum((group[0] for group in groups), [])
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matches.sort()
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prev = None
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for match in matches:
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if match == prev:
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error('Match {!r} is duplicated', match)
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prev = match
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def check_one_default(prop, settings):
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defaults = [s for s in settings if s.DEFAULT]
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if len(defaults) > 1:
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error('More than one star entry: {!r}', prop)
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def check_one_mount_matrix(prop, value):
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numbers = [s for s in value if s not in {';', ','}]
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if len(numbers) != 9:
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error('Wrong accel matrix: {!r}', prop)
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try:
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numbers = [abs(float(number)) for number in numbers]
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except ValueError:
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error('Wrong accel matrix: {!r}', prop)
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bad_x, bad_y, bad_z = max(numbers[0:3]) == 0, max(numbers[3:6]) == 0, max(numbers[6:9]) == 0
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if bad_x or bad_y or bad_z:
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error('Mount matrix is all zero in {} row: {!r}',
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'x' if bad_x else ('y' if bad_y else 'z'),
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prop)
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def check_one_keycode(prop, value):
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if value != '!' and ecodes is not None:
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key = 'KEY_' + value.upper()
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if key not in ecodes:
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key = value.upper()
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if key not in ecodes:
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error('Keycode {} unknown', key)
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def check_properties(groups):
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grammar = property_grammar()
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for matches, props in groups:
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prop_names = set()
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for prop in props:
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# print('--', prop)
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prop = prop.partition('#')[0].rstrip()
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try:
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parsed = grammar.parseString(prop)
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except ParseBaseException as e:
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error('Failed to parse: {!r}', prop)
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continue
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# print('{!r}'.format(parsed))
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if parsed.NAME in prop_names:
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error('Property {} is duplicated', parsed.NAME)
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prop_names.add(parsed.NAME)
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if parsed.NAME == 'MOUSE_DPI':
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check_one_default(prop, parsed.VALUE.SETTINGS)
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elif parsed.NAME == 'ACCEL_MOUNT_MATRIX':
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check_one_mount_matrix(prop, parsed.VALUE)
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elif parsed.NAME.startswith('KEYBOARD_KEY_'):
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val = parsed.VALUE if isinstance(parsed.VALUE, str) else parsed.VALUE[0]
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check_one_keycode(prop, val)
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def print_summary(fname, groups):
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n_matches = sum(len(matches) for matches, props in groups)
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n_props = sum(len(props) for matches, props in groups)
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print('{}: {} match groups, {} matches, {} properties'
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.format(fname, len(groups), n_matches, n_props))
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if n_matches == 0 or n_props == 0:
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error('{}: no matches or props'.format(fname))
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if __name__ == '__main__':
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args = sys.argv[1:] or sorted(glob.glob(os.path.dirname(sys.argv[0]) + '/[67][0-9]-*.hwdb'))
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for fname in args:
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groups = parse(fname)
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print_summary(fname, groups)
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check_match_uniqueness(groups)
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check_properties(groups)
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sys.exit(ERROR)
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