]>
git.ipfire.org Git - thirdparty/systemd.git/blob - hwdb/parse_hwdb.py
2 # -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
4 # This file is part of systemd. It is distrubuted under the MIT license, see
7 # Copyright 2016 Zbigniew Jędrzejewski-Szmek
9 # The MIT License (MIT)
11 # Permission is hereby granted, free of charge, to any person obtaining a copy
12 # of this software and associated documentation files (the "Software"), to deal
13 # in the Software without restriction, including without limitation the rights
14 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
15 # copies of the Software, and to permit persons to whom the Software is
16 # furnished to do so, subject to the following conditions:
18 # The above copyright notice and this permission notice shall be included in
19 # all copies or substantial portions of the Software.
21 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
22 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
24 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
26 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
35 from pyparsing
import (Word
, White
, Literal
, ParserElement
, Regex
,
37 OneOrMore
, Combine
, Or
, Optional
, Suppress
, Group
,
38 nums
, alphanums
, printables
,
39 stringEnd
, pythonStyleComment
, QuotedString
,
42 print('pyparsing is not available')
46 from evdev
.ecodes
import ecodes
49 print('WARNING: evdev is not available')
52 from functools
import lru_cache
54 # don't do caching on old python
55 lru_cache
= lambda: (lambda f
: f
)
57 EOL
= LineEnd().suppress()
59 COMMENTLINE
= pythonStyleComment
+ EOL
61 STRING
= QuotedString('"')
62 REAL
= Combine((INTEGER
+ Optional('.' + Optional(INTEGER
))) ^
('.' + INTEGER
))
63 SIGNED_REAL
= Combine(Optional(Word('-+')) + REAL
)
64 UDEV_TAG
= Word(string
.ascii_uppercase
, alphanums
+ '_')
66 TYPES
= {'mouse': ('usb', 'bluetooth', 'ps2', '*'),
67 'evdev': ('name', 'atkbd', 'input'),
68 'touchpad': ('i8042', 'rmi', 'bluetooth', 'usb'),
69 'keyboard': ('name', ),
70 'sensor': ('modalias', ),
75 ParserElement
.setDefaultWhitespaceChars('')
77 prefix
= Or(category
+ ':' + Or(conn
) + ':'
78 for category
, conn
in TYPES
.items())
79 matchline
= Combine(prefix
+ Word(printables
+ ' ' + '®')) + EOL
80 propertyline
= (White(' ', exact
=1).suppress() +
81 Combine(UDEV_TAG
- '=' - Word(alphanums
+ '_=:@*.!-;, "') - Optional(pythonStyleComment
)) +
83 propertycomment
= White(' ', exact
=1) + pythonStyleComment
+ EOL
85 group
= (OneOrMore(matchline('MATCHES*') ^ COMMENTLINE
.suppress()) -
86 OneOrMore(propertyline('PROPERTIES*') ^ propertycomment
.suppress()) -
87 (EMPTYLINE ^
stringEnd()).suppress())
88 commentgroup
= OneOrMore(COMMENTLINE
).suppress() - EMPTYLINE
.suppress()
90 grammar
= OneOrMore(group('GROUPS*') ^ commentgroup
) + stringEnd()
95 def property_grammar():
96 ParserElement
.setDefaultWhitespaceChars(' ')
98 dpi_setting
= (Optional('*')('DEFAULT') + INTEGER('DPI') + Suppress('@') + INTEGER('HZ'))('SETTINGS*')
99 mount_matrix_row
= SIGNED_REAL
+ ',' + SIGNED_REAL
+ ',' + SIGNED_REAL
100 mount_matrix
= (mount_matrix_row
+ ';' + mount_matrix_row
+ ';' + mount_matrix_row
)('MOUNT_MATRIX')
102 props
= (('MOUSE_DPI', Group(OneOrMore(dpi_setting
))),
103 ('MOUSE_WHEEL_CLICK_ANGLE', INTEGER
),
104 ('MOUSE_WHEEL_CLICK_ANGLE_HORIZONTAL', INTEGER
),
105 ('MOUSE_WHEEL_CLICK_COUNT', INTEGER
),
106 ('MOUSE_WHEEL_CLICK_COUNT_HORIZONTAL', INTEGER
),
107 ('ID_INPUT_TRACKBALL', Literal('1')),
108 ('MOUSE_WHEEL_TILT_HORIZONTAL', Literal('1')),
109 ('MOUSE_WHEEL_TILT_VERTICAL', Literal('1')),
110 ('POINTINGSTICK_SENSITIVITY', INTEGER
),
111 ('POINTINGSTICK_CONST_ACCEL', REAL
),
112 ('ID_INPUT_TOUCHPAD_INTEGRATION', Or(('internal', 'external'))),
113 ('XKB_FIXED_LAYOUT', STRING
),
114 ('XKB_FIXED_VARIANT', STRING
),
115 ('KEYBOARD_LED_NUMLOCK', Literal('0')),
116 ('KEYBOARD_LED_CAPSLOCK', Literal('0')),
117 ('ACCEL_MOUNT_MATRIX', mount_matrix
),
119 fixed_props
= [Literal(name
)('NAME') - Suppress('=') - val('VALUE')
120 for name
, val
in props
]
121 kbd_props
= [Regex(r
'KEYBOARD_KEY_[0-9a-f]+')('NAME')
123 ('!' ^
(Optional('!') - Word(alphanums
+ '_')))('VALUE')
125 abs_props
= [Regex(r
'EVDEV_ABS_[0-9a-f]{2}')('NAME')
127 Word(nums
+ ':')('VALUE')
130 grammar
= Or(fixed_props
+ kbd_props
+ abs_props
) + EOL
135 def error(fmt
, *args
, **kwargs
):
138 print(fmt
.format(*args
, **kwargs
))
140 def convert_properties(group
):
141 matches
= [m
[0] for m
in group
.MATCHES
]
142 props
= [p
[0] for p
in group
.PROPERTIES
]
143 return matches
, props
146 grammar
= hwdb_grammar()
148 with
open(fname
, 'r', encoding
='UTF-8') as f
:
149 parsed
= grammar
.parseFile(f
)
150 except ParseBaseException
as e
:
151 error('Cannot parse {}: {}', fname
, e
)
153 return [convert_properties(g
) for g
in parsed
.GROUPS
]
155 def check_match_uniqueness(groups
):
156 matches
= sum((group
[0] for group
in groups
), [])
159 for match
in matches
:
161 error('Match {!r} is duplicated', match
)
164 def check_one_default(prop
, settings
):
165 defaults
= [s
for s
in settings
if s
.DEFAULT
]
166 if len(defaults
) > 1:
167 error('More than one star entry: {!r}', prop
)
169 def check_one_keycode(prop
, value
):
170 if value
!= '!' and ecodes
is not None:
171 key
= 'KEY_' + value
.upper()
172 if key
not in ecodes
:
173 error('Keycode {} unknown', key
)
175 def check_properties(groups
):
176 grammar
= property_grammar()
177 for matches
, props
in groups
:
181 prop
= prop
.partition('#')[0].rstrip()
183 parsed
= grammar
.parseString(prop
)
184 except ParseBaseException
as e
:
185 error('Failed to parse: {!r}', prop
)
187 # print('{!r}'.format(parsed))
188 if parsed
.NAME
in prop_names
:
189 error('Property {} is duplicated', parsed
.NAME
)
190 prop_names
.add(parsed
.NAME
)
191 if parsed
.NAME
== 'MOUSE_DPI':
192 check_one_default(prop
, parsed
.VALUE
.SETTINGS
)
193 elif parsed
.NAME
.startswith('KEYBOARD_KEY_'):
194 check_one_keycode(prop
, parsed
.VALUE
)
196 def print_summary(fname
, groups
):
197 print('{}: {} match groups, {} matches, {} properties'
200 sum(len(matches
) for matches
, props
in groups
),
201 sum(len(props
) for matches
, props
in groups
)))
203 if __name__
== '__main__':
204 args
= sys
.argv
[1:] or glob
.glob(os
.path
.dirname(sys
.argv
[0]) + '/[67]0-*.hwdb')
207 groups
= parse(fname
)
208 print_summary(fname
, groups
)
209 check_match_uniqueness(groups
)
210 check_properties(groups
)