403 lines
11 KiB
Python
403 lines
11 KiB
Python
#
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#
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#
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from __future__ import absolute_import, division, print_function, unicode_literals
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import errno as _errno
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from weakref import proxy as _proxy
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from logging import getLogger
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_log = getLogger('LUR.receiver')
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del getLogger
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from . import base as _base
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from . import hidpp10 as _hidpp10
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from . import hidpp20 as _hidpp20
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from .common import strhex as _strhex, NamedInts as _NamedInts
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from . import descriptors as _descriptors
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#
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#
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#
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"""A receiver may have a maximum of 6 paired devices at a time."""
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MAX_PAIRED_DEVICES = 6
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class PairedDevice(object):
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def __init__(self, receiver, number):
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assert receiver
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self.receiver = _proxy(receiver)
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assert number > 0 and number <= receiver.max_devices
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self.number = number
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self.wpid = None
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self.polling_rate = 0
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self._kind = None
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self._codename = None
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self._name = None
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self._protocol = None if self.receiver.unifying_supported else 1.0
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self._power_switch = None if self.receiver.unifying_supported else '(unknown)'
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self._serial = None if self.receiver.unifying_supported else self.receiver.serial
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if self.receiver.unifying_supported:
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pair_info = self.receiver.request(0x83B5, 0x20 + self.number - 1)
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if pair_info:
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self.wpid = _strhex(pair_info[3:5])
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kind = ord(pair_info[7:8]) & 0x0F
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self._kind = _hidpp10.DEVICE_KIND[kind]
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self.polling_rate = ord(pair_info[2:3])
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# else:
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# # guesswork...
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# descriptor = _descriptors.DEVICES.get(self.receiver.product_id)
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# if descriptor:
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# self._kind = descriptor.kind
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# self._codename = descriptor.codename
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# self._name = descriptor.name
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# device_info = self.receiver.request(0x83B5, 0x04)
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# if device_info:
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# self.wpid = _strhex(device_info[3:5])
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self._firmware = None
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self._keys = None
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self.features = _hidpp20.FeaturesArray(self) if self.receiver.unifying_supported else None
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self._registers = None
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self._settings = None
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@property
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def protocol(self):
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if self._protocol is None:
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self._protocol = _base.ping(self.receiver.handle, self.number)
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# _log.debug("device %d protocol %s", self.number, self._protocol)
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return self._protocol or 0
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@property
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def power_switch_location(self):
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if self._power_switch is None:
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ps = self.receiver.request(0x83B5, 0x30 + self.number - 1)
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if ps:
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ps = ord(ps[9:10]) & 0x0F
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self._power_switch = _hidpp10.POWER_SWITCH_LOCATION[ps]
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return self._power_switch
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@property
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def codename(self):
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if self._codename is None:
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codename = self.receiver.request(0x83B5, 0x40 + self.number - 1)
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if codename:
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self._codename = codename[2:].rstrip(b'\x00').decode('utf-8')
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# _log.debug("device %d codename %s", self.number, self._codename)
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return self._codename
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@property
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def name(self):
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if self._name is None:
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if self.codename in _descriptors.DEVICES:
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self._name, self._kind = _descriptors.DEVICES[self._codename][:2]
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elif self.protocol >= 2.0:
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self._name = _hidpp20.get_name(self)
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return self._name or self.codename or '?'
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@property
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def kind(self):
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if self._kind is None and self.receiver.unifying_supported:
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pair_info = self.receiver.request(0x83B5, 0x20 + self.number - 1)
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if pair_info:
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kind = ord(pair_info[7:8]) & 0x0F
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self._kind = _hidpp10.DEVICE_KIND[kind]
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if self._wpid is None:
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self._wpid = _strhex(pair_info[3:5])
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if self._kind is None:
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if self.codename in _descriptors.DEVICES:
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self._name, self._kind = _descriptors.DEVICES[self._codename][:2]
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elif self.protocol >= 2.0:
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self._kind = _hidpp20.get_kind(self)
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return self._kind or '?'
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@property
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def firmware(self):
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if self._firmware is None:
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if self.protocol < 2.0:
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self._firmware = _hidpp10.get_firmware(self)
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else:
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self._firmware = _hidpp20.get_firmware(self)
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return self._firmware or ()
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@property
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def serial(self):
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if self._serial is None:
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self._serial = _hidpp10.get_serial(self)
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return self._serial or '?'
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@property
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def keys(self):
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if self._keys is None:
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if self.protocol >= 2.0:
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self._keys = _hidpp20.get_keys(self) or ()
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return self._keys
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@property
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def registers(self):
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if self._registers is None:
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descriptor = _descriptors.DEVICES.get(self.codename)
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if descriptor is None or descriptor.registers is None:
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self._registers = _NamedInts()
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else:
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self._registers = descriptor.registers
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return self._registers
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@property
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def settings(self):
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if self._settings is None:
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descriptor = _descriptors.DEVICES.get(self.codename)
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if descriptor is None or descriptor.settings is None:
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self._settings = []
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else:
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self._settings = [s(self) for s in descriptor.settings]
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if self.features:
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_descriptors.check_features(self, self._settings)
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return self._settings
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def enable_notifications(self, enable=True):
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"""Enable or disable device (dis)connection notifications on this
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receiver."""
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if not self.receiver or not self.receiver.handle:
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return False
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if enable:
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set_flag_bits = ( _hidpp10.NOTIFICATION_FLAG.battery_status
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+ _hidpp10.NOTIFICATION_FLAG.wireless
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+ _hidpp10.NOTIFICATION_FLAG.software_present )
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else:
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set_flag_bits = 0
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ok = _hidpp10.set_notification_flags(self, set_flag_bits)
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flag_bits = _hidpp10.get_notification_flags(self)
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if flag_bits is not None:
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flag_bits = tuple(_hidpp10.NOTIFICATION_FLAG.flag_names(flag_bits))
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if ok:
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_log.info("%s: device notifications %s %s", self, 'enabled' if enable else 'disabled', flag_bits)
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else:
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_log.warn("%s: failed to %s device notifications %s", self, 'enable' if enable else 'disable', flag_bits)
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return ok
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def request(self, request_id, *params):
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return _base.request(self.receiver.handle, self.number, request_id, *params)
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def feature_request(self, feature, function=0x00, *params):
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if self.protocol >= 2.0:
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return _hidpp20.feature_request(self, feature, function, *params)
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def ping(self):
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return _base.ping(self.receiver.handle, self.number) is not None
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def __index__(self):
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return self.number
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__int__ = __index__
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def __eq__(self, other):
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return other is not None and self.kind == other.kind and self.serial == other.serial
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def __ne__(self, other):
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return other is None or self.kind != other.kind or self.serial != other.serial
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def __hash__(self):
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return self.serial.__hash__()
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def __str__(self):
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return '<PairedDevice(%d,%s,%s)>' % (self.number, self.wpid, self.codename or '?')
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__unicode__ = __repr__ = __str__
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#
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#
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#
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class Receiver(object):
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"""A Unifying Receiver instance.
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The paired devices are available through the sequence interface.
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"""
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number = 0xFF
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kind = None
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def __init__(self, handle, device_info):
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assert handle
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self.handle = handle
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assert device_info
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self.path = device_info.path
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self.product_id = device_info.product_id
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# read the serial immediately, so we can find out max_devices
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# this will tell us if it's a Unifying or Nano receiver
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serial_reply = self.request(0x83B5, 0x03)
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assert serial_reply
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self.serial = _strhex(serial_reply[1:5])
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self.max_devices = ord(serial_reply[6:7])
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if self.max_devices == 1:
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self.name = 'Nano Receiver'
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elif self.max_devices == 6:
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self.name = 'Unifying Receiver'
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else:
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raise Exception("unknown receiver type")
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self._str = '<%s(%s,%s%s)>' % (self.name.replace(' ', ''), self.path, '' if type(self.handle) == int else 'T', self.handle)
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old_equad_reply = self.request(0x83B5, 0x04)
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self.unifying_supported = old_equad_reply is None
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self._firmware = None
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self._devices = {}
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def close(self):
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handle, self.handle = self.handle, None
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self._devices.clear()
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return (handle and _base.close(handle))
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def __del__(self):
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self.close()
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@property
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def firmware(self):
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if self._firmware is None and self.handle:
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self._firmware = _hidpp10.get_firmware(self)
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return self._firmware
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def enable_notifications(self, enable=True):
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"""Enable or disable device (dis)connection notifications on this
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receiver."""
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if not self.handle:
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return False
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# flag_bits = _hidpp10.NOTIFICATION_FLAG.all_bits() if enable else 0
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flag_bits = 0xFFFFFF if enable else 0
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ok = _hidpp10.set_notification_flags(self, flag_bits)
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flag_bits = _hidpp10.get_notification_flags(self)
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if flag_bits is not None:
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flag_bits = tuple(_hidpp10.NOTIFICATION_FLAG.flag_names(flag_bits))
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if ok:
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_log.info("%s: device notifications %s %s", self, 'enabled' if enable else 'disabled', flag_bits)
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else:
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_log.warn("%s: failed to %s device notifications %s", self, 'enable' if enable else 'disable', flag_bits)
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return ok
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def notify_devices(self):
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"""Scan all devices."""
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if self.handle:
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if not self.request(0x8002, 0x02):
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_log.warn("%s: failed to trigger device link notifications", self)
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def register_new_device(self, number):
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if self._devices.get(number) is not None:
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raise IndexError("%s: device number %d already registered" % (self, number))
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dev = PairedDevice(self, number)
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if dev.wpid:
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_log.info("%s: found device %d (%s)", self, number, dev.wpid)
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self._devices[number] = dev
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return dev
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self._devices[number] = None
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def set_lock(self, lock_closed=True, device=0, timeout=0):
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if self.handle:
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lock = 0x02 if lock_closed else 0x01
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reply = self.request(0x80B2, lock, device, timeout)
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if reply:
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return True
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_log.warn("%s: failed to %s the receiver lock", self, 'close' if lock_closed else 'open')
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def count(self):
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count = self.request(0x8102)
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return 0 if count is None else ord(count[1:2])
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def request(self, request_id, *params):
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if self.handle:
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return _base.request(self.handle, 0xFF, request_id, *params)
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def __iter__(self):
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for number in range(1, 1 + self.max_devices):
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if number in self._devices:
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dev = self._devices[number]
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else:
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dev = self.__getitem__(number)
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if dev is not None:
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yield dev
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def __getitem__(self, key):
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if not self.handle:
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return None
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dev = self._devices.get(key)
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if dev is not None:
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return dev
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if type(key) != int:
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raise TypeError('key must be an integer')
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if key < 1 or key > self.max_devices:
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raise IndexError(key)
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return self.register_new_device(key)
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def __delitem__(self, key):
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if self._devices.get(key) is None:
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raise IndexError(key)
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dev = self._devices[key]
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reply = self.request(0x80B2, 0x03, int(key))
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if reply:
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del self._devices[key]
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_log.warn("%s unpaired device %s", self, dev)
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else:
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_log.error("%s failed to unpair device %s", self, dev)
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raise IndexError(key)
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def __len__(self):
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return len([d for d in self._devices.values() if d is not None])
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def __contains__(self, dev):
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if type(dev) == int:
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return self._devices.get(dev) is not None
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return self.__contains__(dev.number)
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def __eq__(self, other):
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return other is not None and self.kind == other.kind and self.path == other.path
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def __ne__(self, other):
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return other is None or self.kind != other.kind or self.path != other.path
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def __hash__(self):
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return self.path.__hash__()
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def __str__(self):
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return self._str
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__unicode__ = __repr__ = __str__
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__bool__ = __nonzero__ = lambda self: self.handle is not None
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@classmethod
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def open(self, device_info):
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"""Opens a Logitech Receiver found attached to the machine, by Linux device path.
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:returns: An open file handle for the found receiver, or ``None``.
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"""
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try:
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handle = _base.open_path(device_info.path)
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if handle:
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return Receiver(handle, device_info)
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except OSError as e:
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_log.exception("open %s", device_info)
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if e.errno == _errno.EACCES:
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raise
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except:
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_log.exception("open %s", device_info)
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