core/homeassistant/components/ozw/fan.py

96 lines
2.8 KiB
Python

"""Support for Z-Wave fans."""
import logging
import math
from homeassistant.components.fan import (
DOMAIN as FAN_DOMAIN,
SPEED_HIGH,
SPEED_LOW,
SPEED_MEDIUM,
SPEED_OFF,
SUPPORT_SET_SPEED,
FanEntity,
)
from homeassistant.core import callback
from homeassistant.helpers.dispatcher import async_dispatcher_connect
from .const import DATA_UNSUBSCRIBE, DOMAIN
from .entity import ZWaveDeviceEntity
_LOGGER = logging.getLogger(__name__)
SUPPORTED_FEATURES = SUPPORT_SET_SPEED
# Value will first be divided to an integer
VALUE_TO_SPEED = {0: SPEED_OFF, 1: SPEED_LOW, 2: SPEED_MEDIUM, 3: SPEED_HIGH}
SPEED_TO_VALUE = {SPEED_OFF: 0, SPEED_LOW: 1, SPEED_MEDIUM: 50, SPEED_HIGH: 99}
SPEED_LIST = [*SPEED_TO_VALUE]
async def async_setup_entry(hass, config_entry, async_add_entities):
"""Set up Z-Wave Fan from Config Entry."""
@callback
def async_add_fan(values):
"""Add Z-Wave Fan."""
fan = ZwaveFan(values)
async_add_entities([fan])
hass.data[DOMAIN][config_entry.entry_id][DATA_UNSUBSCRIBE].append(
async_dispatcher_connect(hass, f"{DOMAIN}_new_{FAN_DOMAIN}", async_add_fan)
)
class ZwaveFan(ZWaveDeviceEntity, FanEntity):
"""Representation of a Z-Wave fan."""
def __init__(self, values):
"""Initialize the fan."""
super().__init__(values)
self._previous_speed = None
async def async_set_speed(self, speed):
"""Set the speed of the fan."""
if speed not in SPEED_TO_VALUE:
_LOGGER.warning("Invalid speed received: %s", speed)
return
self._previous_speed = speed
self.values.primary.send_value(SPEED_TO_VALUE[speed])
async def async_turn_on(self, speed=None, **kwargs):
"""Turn the device on."""
if speed is None:
# Value 255 tells device to return to previous value
self.values.primary.send_value(255)
else:
await self.async_set_speed(speed)
async def async_turn_off(self, **kwargs):
"""Turn the device off."""
self.values.primary.send_value(0)
@property
def is_on(self):
"""Return true if device is on (speed above 0)."""
return self.values.primary.value > 0
@property
def speed(self):
"""Return the current speed.
The Z-Wave speed value is a byte 0-255. 255 means previous value.
The normal range of the speed is 0-99. 0 means off.
"""
value = math.ceil(self.values.primary.value * 3 / 100)
return VALUE_TO_SPEED.get(value, self._previous_speed)
@property
def speed_list(self):
"""Get the list of available speeds."""
return SPEED_LIST
@property
def supported_features(self):
"""Flag supported features."""
return SUPPORTED_FEATURES