Merge pull request #4844 from hadess/sensor-quirks

udev: Add rules for accelerometer orientation quirks

2 files changed, 55 insertions, 4 deletions

diff --git a/hwdb/60-sensor.hwdb b/hwdb/60-sensor.hwdb
new file mode 100644
index 0000000000..3160cf77e8
--- /dev/null
+++ b/hwdb/60-sensor.hwdb
@@ -0,0 +1,45 @@
+# This file is part of systemd.
+#
+# The lookup keys are composed in:
+#   60-sensor.rules
+#
+# Note: The format of the "sensor:" prefix match key is a
+# contract between the rules file and the hardware data, it might
+# change in later revisions to support more or better matches, it
+# is not necessarily expected to be a stable ABI.
+#
+# Match string formats:
+# sensor:modalias:<parent device modalias>:dmi:<dmi string>
+#
+# To add local entries, create a new file
+#   /etc/udev/hwdb.d/61-sensor-local.hwdb
+# and add your rules there. To load the new rules execute (as root):
+#   systemd-hwdb update
+#   udevadm trigger `dirname $(udevadm info -n "/dev/iio:deviceXXX" -q path)`
+# where /dev/iio:deviceXXX is the device in question.
+#
+# If your changes are generally applicable, preferably send them as a pull
+# request to
+#   https://github.com/systemd/systemd
+# or create a bug report on https://github.com/systemd/systemd/issues and
+# include your new rules, a description of the device, and the output of
+#   udevadm info --export-db
+#
+# Allowed properties are:
+#    ACCEL_MOUNT_MATRIX=<matrix>
+#
+# where <matrix> is a mount-matrix in the format specified in the IIO
+# subsystem[1]. The default, when unset, is equivalent to:
+#   ACCEL_MOUNT_MATRIX=1, 0, 0; 0, 1, 0; 0, 0, 1
+# eg. the identity matrix.
+#
+# [1]: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dfc57732ad38f93ae6232a3b4e64fd077383a0f1
+
+#
+# Sort by brand, model
+
+#########################################
+# Winbook
+#########################################
+sensor:modalias:acpi:BMA250*:dmi:*svn*WinBook*:*pn*TW100*
+ ACCEL_MOUNT_MATRIX=0, -1, 0; -1, 0, 0; 0, 0, 0
diff --git a/hwdb/parse_hwdb.py b/hwdb/parse_hwdb.py
index 16f74b0777..18f13edd0a 100755
--- a/hwdb/parse_hwdb.py
+++ b/hwdb/parse_hwdb.py
@@ -60,12 +60,14 @@ 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'),
          'touchpad': ('i8042', 'rmi', 'bluetooth', 'usb'),
          'keyboard': ('name', ),
+         'sensor':   ('modalias', ),
         }
 
 @lru_cache()
@@ -76,7 +78,7 @@ def hwdb_grammar():
                 for category, conn in TYPES.items())
     matchline = Combine(prefix + Word(printables + ' ' + '®')) + EOL
     propertyline = (White(' ', exact=1).suppress() +
-                    Combine(UDEV_TAG - '=' - Word(alphanums + '_=:@*.! "') - Optional(pythonStyleComment)) +
+                    Combine(UDEV_TAG - '=' - Word(alphanums + '_=:@*.!-;, "') - Optional(pythonStyleComment)) +
                     EOL)
     propertycomment = White(' ', exact=1) + pythonStyleComment + EOL
 
@@ -93,8 +95,11 @@ def hwdb_grammar():
 def property_grammar():
     ParserElement.setDefaultWhitespaceChars(' ')
 
-    setting = Optional('*')('DEFAULT') + INTEGER('DPI') + Suppress('@') + INTEGER('HZ')
-    props = (('MOUSE_DPI', Group(OneOrMore(setting('SETTINGS*')))),
+    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),
@@ -105,6 +110,7 @@ def property_grammar():
              ('ID_INPUT_TOUCHPAD_INTEGRATION', Or(('internal', 'external'))),
              ('XKB_FIXED_LAYOUT', STRING),
              ('XKB_FIXED_VARIANT', STRING),
+             ('ACCEL_MOUNT_MATRIX', mount_matrix),
             )
     fixed_props = [Literal(name)('NAME') - Suppress('=') - val('VALUE')
                    for name, val in props]
@@ -117,7 +123,7 @@ def property_grammar():
                  Word(nums + ':')('VALUE')
                 ]
 
-    grammar = Or(fixed_props + kbd_props + abs_props)
+    grammar = Or(fixed_props + kbd_props + abs_props) + EOL
 
     return grammar