core/homeassistant/components/binary_sensor/knx.py

145 lines
4.6 KiB
Python

"""
Support for KNX/IP binary sensors.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/binary_sensor.knx/
"""
import voluptuous as vol
from homeassistant.components.binary_sensor import (
PLATFORM_SCHEMA, BinarySensorDevice)
from homeassistant.components.knx import (
ATTR_DISCOVER_DEVICES, DATA_KNX, KNXAutomation)
from homeassistant.const import CONF_NAME
from homeassistant.core import callback
import homeassistant.helpers.config_validation as cv
CONF_ADDRESS = 'address'
CONF_DEVICE_CLASS = 'device_class'
CONF_SIGNIFICANT_BIT = 'significant_bit'
CONF_DEFAULT_SIGNIFICANT_BIT = 1
CONF_AUTOMATION = 'automation'
CONF_HOOK = 'hook'
CONF_DEFAULT_HOOK = 'on'
CONF_COUNTER = 'counter'
CONF_DEFAULT_COUNTER = 1
CONF_ACTION = 'action'
CONF_RESET_AFTER = 'reset_after'
CONF__ACTION = 'turn_off_action'
DEFAULT_NAME = 'KNX Binary Sensor'
DEPENDENCIES = ['knx']
AUTOMATION_SCHEMA = vol.Schema({
vol.Optional(CONF_HOOK, default=CONF_DEFAULT_HOOK): cv.string,
vol.Optional(CONF_COUNTER, default=CONF_DEFAULT_COUNTER): cv.port,
vol.Required(CONF_ACTION): cv.SCRIPT_SCHEMA
})
AUTOMATIONS_SCHEMA = vol.All(
cv.ensure_list,
[AUTOMATION_SCHEMA]
)
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
vol.Required(CONF_ADDRESS): cv.string,
vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
vol.Optional(CONF_DEVICE_CLASS): cv.string,
vol.Optional(CONF_SIGNIFICANT_BIT, default=CONF_DEFAULT_SIGNIFICANT_BIT):
cv.positive_int,
vol.Optional(CONF_RESET_AFTER): cv.positive_int,
vol.Optional(CONF_AUTOMATION): AUTOMATIONS_SCHEMA,
})
async def async_setup_platform(hass, config, async_add_devices,
discovery_info=None):
"""Set up binary sensor(s) for KNX platform."""
if discovery_info is not None:
async_add_devices_discovery(hass, discovery_info, async_add_devices)
else:
async_add_devices_config(hass, config, async_add_devices)
@callback
def async_add_devices_discovery(hass, discovery_info, async_add_devices):
"""Set up binary sensors for KNX platform configured via xknx.yaml."""
entities = []
for device_name in discovery_info[ATTR_DISCOVER_DEVICES]:
device = hass.data[DATA_KNX].xknx.devices[device_name]
entities.append(KNXBinarySensor(hass, device))
async_add_devices(entities)
@callback
def async_add_devices_config(hass, config, async_add_devices):
"""Set up binary senor for KNX platform configured within platform."""
name = config.get(CONF_NAME)
import xknx
binary_sensor = xknx.devices.BinarySensor(
hass.data[DATA_KNX].xknx,
name=name,
group_address=config.get(CONF_ADDRESS),
device_class=config.get(CONF_DEVICE_CLASS),
significant_bit=config.get(CONF_SIGNIFICANT_BIT),
reset_after=config.get(CONF_RESET_AFTER))
hass.data[DATA_KNX].xknx.devices.add(binary_sensor)
entity = KNXBinarySensor(hass, binary_sensor)
automations = config.get(CONF_AUTOMATION)
if automations is not None:
for automation in automations:
counter = automation.get(CONF_COUNTER)
hook = automation.get(CONF_HOOK)
action = automation.get(CONF_ACTION)
entity.automations.append(KNXAutomation(
hass=hass, device=binary_sensor, hook=hook,
action=action, counter=counter))
async_add_devices([entity])
class KNXBinarySensor(BinarySensorDevice):
"""Representation of a KNX binary sensor."""
def __init__(self, hass, device):
"""Initialize of KNX binary sensor."""
self.device = device
self.hass = hass
self.async_register_callbacks()
self.automations = []
@callback
def async_register_callbacks(self):
"""Register callbacks to update hass after device was changed."""
async def after_update_callback(device):
"""Call after device was updated."""
await self.async_update_ha_state()
self.device.register_device_updated_cb(after_update_callback)
@property
def name(self):
"""Return the name of the KNX device."""
return self.device.name
@property
def available(self):
"""Return True if entity is available."""
return self.hass.data[DATA_KNX].connected
@property
def should_poll(self):
"""No polling needed within KNX."""
return False
@property
def device_class(self):
"""Return the class of this sensor."""
return self.device.device_class
@property
def is_on(self):
"""Return true if the binary sensor is on."""
return self.device.is_on()