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import os
from collections import deque, namedtuple
from datetime import timedelta
from enum import Enum, unique
from tempfile import mkdtemp
from liquidctl.driver.base import *
from liquidctl.keyval import RuntimeStorage, _FilesystemBackend
from liquidctl.driver.usb import _DEFAULT_TIMEOUT_MS
Report = namedtuple('Report', ['number', 'data'])
def noop(*args, **kwargs):
return None
class MockRuntimeStorage(RuntimeStorage):
def __init__(self, key_prefixes, backend=None):
if not backend:
run_dir = mkdtemp('run_dir')
backend = _FilesystemBackend(key_prefixes, runtime_dirs=[run_dir])
super().__init__(key_prefixes, backend)
class MockHidapiDevice:
def __init__(self, vendor_id=None, product_id=None, release_number=None,
serial_number=None, bus=None, address=None, path=None):
self.vendor_id = vendor_id
self.product_id = product_id
self.release_number = release_number
self.serial_number = serial_number
self.bus = bus
self.address = address
self.path = path or b'<placeholder path>'
self.port = None
self.open = noop
self.close = noop
self.clear_enqueued_reports = noop
self._read = deque()
self.sent = list()
def preload_read(self, report):
self._read.append(report)
def read(self, length, *, timeout=_DEFAULT_TIMEOUT_MS):
if self._read:
number, data = self._read.popleft()
if number:
return [number] + list(data)[:length]
else:
return list(data)[:length]
return None
def write(self, data):
data = bytes(data) # ensure data is convertible to bytes
self.sent.append(Report(data[0], list(data[1:])))
return len(data)
def get_feature_report(self, report_id, length):
if self._read:
try:
report = next(filter(lambda x: x.number == report_id, self._read))
number, data = report
self._read.remove(report)
except StopIteration:
return None
# length dictates the size of the buffer, and if it's not large
# enough "ioctl (GFEATURE): Value too large for defined data type"
# may happen on Linux; see:
# https://github.com/liquidctl/liquidctl/issues/151#issuecomment-665119675
assert length >= len(data) + 1, 'buffer not large enough for received report'
return [number] + list(data)[:length]
return None
def send_feature_report(self, data):
return self.write(data)
class MockPyusbDevice():
def __init__(self, vendor_id=None, product_id=None, release_number=None,
serial_number=None, bus=None, address=None, port=None):
assert port is None, \
'port numbers are only available on libusb-1.0 and should not be dependended on'
self.vendor_id = vendor_id
self.product_id = product_id
self.release_number = release_number
self.serial_number = serial_number
self.bus = bus
self.address = address
self.port = port
self.open = noop
self.claim = noop
self.release = noop
self.close = noop
self._reset_sent()
def read(self, endpoint, length, *, timeout=_DEFAULT_TIMEOUT_MS):
if len(self._responses):
return self._responses.popleft()
return [0] * length
def write(self, endpoint, data, *, timeout=_DEFAULT_TIMEOUT_MS):
self._sent_xfers.append(('write', endpoint, data))
def ctrl_transfer(self, bmRequestType, bRequest, wValue=0, wIndex=0,
data_or_wLength=None, timeout=_DEFAULT_TIMEOUT_MS):
self._sent_xfers.append(('ctrl_transfer', bmRequestType, bRequest,
wValue, wIndex, data_or_wLength))
def _reset_sent(self):
self._sent_xfers = list()
self._responses = deque()
VirtualEeprom = namedtuple('VirtualEeprom', ['name', 'data'])
class VirtualSmbus:
def __init__(self, address_count=256, register_count=256, name='i2c-99',
description='Virtual', parent_vendor=0xff01, parent_device=0xff02,
parent_subsystem_vendor=0xff10, parent_subsystem_device=0xff20,
parent_driver='virtual'):
self._open = False
self._data = [[0] * register_count for _ in range(address_count)]
self.name = name
self.description = description
self.parent_vendor = parent_vendor
self.parent_device = parent_device
self.parent_subsystem_vendor = parent_subsystem_vendor
self.parent_subsystem_device = parent_subsystem_device
self.parent_driver = parent_driver
def open(self):
self._open = True
def read_byte(self, address):
if not self._open:
raise OSError('closed')
return self._data[address][0]
def read_byte_data(self, address, register):
if not self._open:
raise OSError('closed')
return self._data[address][register]
def read_word_data(self, address, register):
if not self._open:
raise OSError('closed')
return self._data[address][register]
def read_block_data(self, address, register):
if not self._open:
raise OSError('closed')
return self._data[address][register]
def write_byte(self, address, value):
if not self._open:
raise OSError('closed')
self._data[address][0] = value
def write_byte_data(self, address, register, value):
if not self._open:
raise OSError('closed')
self._data[address][register] = value
def write_word_data(self, address, register, value):
if not self._open:
raise OSError('closed')
self._data[address][register] = value
def write_block_data(self, address, register, data):
if not self._open:
raise OSError('closed')
self._data[address][register] = data
def close(self):
self._open = False
def emulate_eeprom_at(self, address, name, data):
self._data[address] = VirtualEeprom(name, data) # hack
def load_eeprom(self, address):
return self._data[address] # hack
@unique
class VirtualControlMode(Enum):
QUIET = 0x0
BALANCED = 0x1
EXTREME = 0x2
CallArgs = namedtuple('CallArgs', ['args', 'kwargs'])
class VirtualBusDevice(BaseDriver):
def __init__(self, *args, **kwargs):
self.call_args = dict()
self.call_args['__init__'] = CallArgs(args, kwargs)
self.connected = False
def connect(self, *args, **kwargs):
self.call_args['connect'] = CallArgs(args, kwargs)
self.connected = True
return self
def disconnect(self, *args, **kwargs):
self.call_args['disconnect'] = CallArgs(args, kwargs)
self.connected = False
def initialize(self, *args, **kwargs):
self.call_args['initialize'] = CallArgs(args, kwargs)
return [
('Firmware version', '3.14.16', ''),
]
def get_status(self, *args, **kwargs):
self.call_args['status'] = CallArgs(args, kwargs)
return [
('Temperature', 30.4, '°C'),
('Fan control mode', VirtualControlMode.QUIET, ''),
('Animation', None, ''),
('Uptime', timedelta(hours=18, minutes=23, seconds=12), ''),
('Hardware mode', True, ''),
]
def set_fixed_speed(self, *args, **kwargs):
self.call_args['set_fixed_speed'] = CallArgs(args, kwargs)
def set_speed_profile(self, *args, **kwargs):
self.call_args['set_speed_profile'] = CallArgs(args, kwargs)
def set_color(self, *args, **kwargs):
self.call_args['set_color'] = CallArgs(args, kwargs)
@property
def description(self):
return 'Virtual Bus Device'
@property
def vendor_id(self):
return 0x1234
@property
def product_id(self):
return 0xabcd
@property
def release_number(self):
None
@property
def serial_number(self):
raise OSError()
@property
def bus(self):
return 'virtual'
@property
def address(self):
return 'virtual_address'
@property
def port(self):
return None
class VirtualBus(BaseBus):
def find_devices(self, **kwargs):
yield from [VirtualBusDevice()]
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