289 lines
9.9 KiB
Python
289 lines
9.9 KiB
Python
"""
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Tellstick Component.
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For more details about this component, please refer to the documentation at
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https://home-assistant.io/components/tellstick/
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"""
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import asyncio
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import logging
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import threading
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import voluptuous as vol
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from homeassistant.helpers import discovery
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from homeassistant.core import callback
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from homeassistant.const import (
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EVENT_HOMEASSISTANT_STOP, CONF_HOST, CONF_PORT)
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from homeassistant.helpers.entity import Entity
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import homeassistant.helpers.config_validation as cv
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REQUIREMENTS = ['tellcore-py==1.1.2', 'tellcore-net==0.4']
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_LOGGER = logging.getLogger(__name__)
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ATTR_DISCOVER_CONFIG = 'config'
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ATTR_DISCOVER_DEVICES = 'devices'
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CONF_SIGNAL_REPETITIONS = 'signal_repetitions'
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DEFAULT_SIGNAL_REPETITIONS = 1
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DOMAIN = 'tellstick'
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DATA_TELLSTICK = 'tellstick_device'
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SIGNAL_TELLCORE_CALLBACK = 'tellstick_callback'
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# Use a global tellstick domain lock to avoid getting Tellcore errors when
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# calling concurrently.
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TELLSTICK_LOCK = threading.RLock()
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# A TellstickRegistry that keeps a map from tellcore_id to the corresponding
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# tellcore_device and HA device (entity).
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TELLCORE_REGISTRY = None
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CONFIG_SCHEMA = vol.Schema({
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DOMAIN: vol.Schema({
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vol.Inclusive(CONF_HOST, 'tellcore-net'): cv.string,
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vol.Inclusive(CONF_PORT, 'tellcore-net'):
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vol.All(cv.ensure_list, [cv.port], vol.Length(min=2, max=2)),
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vol.Optional(CONF_SIGNAL_REPETITIONS,
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default=DEFAULT_SIGNAL_REPETITIONS): vol.Coerce(int),
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}),
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}, extra=vol.ALLOW_EXTRA)
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def _discover(hass, config, component_name, found_tellcore_devices):
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"""Set up and send the discovery event."""
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if not found_tellcore_devices:
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return
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_LOGGER.info("Discovered %d new %s devices", len(found_tellcore_devices),
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component_name)
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signal_repetitions = config[DOMAIN].get(CONF_SIGNAL_REPETITIONS)
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discovery.load_platform(hass, component_name, DOMAIN, {
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ATTR_DISCOVER_DEVICES: found_tellcore_devices,
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ATTR_DISCOVER_CONFIG: signal_repetitions}, config)
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def setup(hass, config):
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"""Set up the Tellstick component."""
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from tellcore.constants import (TELLSTICK_DIM, TELLSTICK_UP)
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from tellcore.telldus import AsyncioCallbackDispatcher
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from tellcore.telldus import TelldusCore
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from tellcorenet import TellCoreClient
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conf = config.get(DOMAIN, {})
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net_host = conf.get(CONF_HOST)
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net_ports = conf.get(CONF_PORT)
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# Initialize remote tellcore client
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if net_host:
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net_client = TellCoreClient(
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host=net_host, port_client=net_ports[0], port_events=net_ports[1])
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net_client.start()
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def stop_tellcore_net(event):
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"""Event handler to stop the client."""
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net_client.stop()
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hass.bus.listen_once(EVENT_HOMEASSISTANT_STOP, stop_tellcore_net)
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try:
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tellcore_lib = TelldusCore(
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callback_dispatcher=AsyncioCallbackDispatcher(hass.loop))
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except OSError:
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_LOGGER.exception("Could not initialize Tellstick")
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return False
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# Get all devices, switches and lights alike
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tellcore_devices = tellcore_lib.devices()
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# Register devices
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hass.data[DATA_TELLSTICK] = {device.id: device for
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device in tellcore_devices}
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# Discover the lights
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_discover(hass, config, 'light',
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[device.id for device in tellcore_devices
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if device.methods(TELLSTICK_DIM)])
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# Discover the cover
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_discover(hass, config, 'cover',
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[device.id for device in tellcore_devices
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if device.methods(TELLSTICK_UP)])
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# Discover the switches
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_discover(hass, config, 'switch',
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[device.id for device in tellcore_devices
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if (not device.methods(TELLSTICK_UP) and
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not device.methods(TELLSTICK_DIM))])
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@callback
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def async_handle_callback(tellcore_id, tellcore_command,
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tellcore_data, cid):
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"""Handle the actual callback from Tellcore."""
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hass.helpers.dispatcher.async_dispatcher_send(
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SIGNAL_TELLCORE_CALLBACK, tellcore_id,
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tellcore_command, tellcore_data)
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# Register callback
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callback_id = tellcore_lib.register_device_event(
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async_handle_callback)
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def clean_up_callback(event):
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"""Unregister the callback bindings."""
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if callback_id is not None:
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tellcore_lib.unregister_callback(callback_id)
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hass.bus.listen_once(EVENT_HOMEASSISTANT_STOP, clean_up_callback)
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return True
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class TellstickDevice(Entity):
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"""Representation of a Tellstick device.
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Contains the common logic for all Tellstick devices.
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"""
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def __init__(self, tellcore_device, signal_repetitions):
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"""Init the Tellstick device."""
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self._signal_repetitions = signal_repetitions
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self._state = None
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self._requested_state = None
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self._requested_data = None
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self._repeats_left = 0
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# Look up our corresponding tellcore device
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self._tellcore_device = tellcore_device
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self._name = tellcore_device.name
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@asyncio.coroutine
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def async_added_to_hass(self):
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"""Register callbacks."""
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self.hass.helpers.dispatcher.async_dispatcher_connect(
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SIGNAL_TELLCORE_CALLBACK,
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self.update_from_callback
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)
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@property
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def should_poll(self):
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"""Tell Home Assistant not to poll this device."""
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return False
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@property
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def assumed_state(self):
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"""Tellstick devices are always assumed state."""
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return True
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@property
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def name(self):
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"""Return the name of the device as reported by tellcore."""
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return self._name
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@property
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def is_on(self):
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"""Return true if the device is on."""
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return self._state
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def _parse_ha_data(self, kwargs):
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"""Turn the value from HA into something useful."""
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raise NotImplementedError
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def _parse_tellcore_data(self, tellcore_data):
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"""Turn the value received from tellcore into something useful."""
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raise NotImplementedError
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def _update_model(self, new_state, data):
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"""Update the device entity state to match the arguments."""
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raise NotImplementedError
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def _send_device_command(self, requested_state, requested_data):
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"""Let tellcore update the actual device to the requested state."""
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raise NotImplementedError
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def _send_repeated_command(self):
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"""Send a tellstick command once and decrease the repeat count."""
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from tellcore.library import TelldusError
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with TELLSTICK_LOCK:
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if self._repeats_left > 0:
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self._repeats_left -= 1
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try:
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self._send_device_command(self._requested_state,
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self._requested_data)
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except TelldusError as err:
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_LOGGER.error(err)
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def _change_device_state(self, new_state, data):
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"""Turn on or off the device."""
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with TELLSTICK_LOCK:
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# Set the requested state and number of repeats before calling
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# _send_repeated_command the first time. Subsequent calls will be
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# made from the callback. (We don't want to queue a lot of commands
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# in case the user toggles the switch the other way before the
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# queue is fully processed.)
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self._requested_state = new_state
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self._requested_data = data
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self._repeats_left = self._signal_repetitions
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self._send_repeated_command()
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# Sooner or later this will propagate to the model from the
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# callback, but for a fluid UI experience update it directly.
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self._update_model(new_state, data)
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self.schedule_update_ha_state()
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def turn_on(self, **kwargs):
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"""Turn the switch on."""
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self._change_device_state(True, self._parse_ha_data(kwargs))
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def turn_off(self, **kwargs):
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"""Turn the switch off."""
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self._change_device_state(False, None)
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def _update_model_from_command(self, tellcore_command, tellcore_data):
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"""Update the model, from a sent tellcore command and data."""
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from tellcore.constants import (
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TELLSTICK_TURNON, TELLSTICK_TURNOFF, TELLSTICK_DIM)
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if tellcore_command not in [TELLSTICK_TURNON, TELLSTICK_TURNOFF,
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TELLSTICK_DIM]:
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_LOGGER.debug("Unhandled tellstick command: %d", tellcore_command)
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return
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self._update_model(tellcore_command != TELLSTICK_TURNOFF,
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self._parse_tellcore_data(tellcore_data))
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def update_from_callback(self, tellcore_id, tellcore_command,
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tellcore_data):
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"""Handle updates from the tellcore callback."""
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if tellcore_id != self._tellcore_device.id:
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return
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self._update_model_from_command(tellcore_command, tellcore_data)
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self.schedule_update_ha_state()
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# This is a benign race on _repeats_left -- it's checked with the lock
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# in _send_repeated_command.
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if self._repeats_left > 0:
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self._send_repeated_command()
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def _update_from_tellcore(self):
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"""Read the current state of the device from the tellcore library."""
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from tellcore.library import TelldusError
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from tellcore.constants import (
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TELLSTICK_TURNON, TELLSTICK_TURNOFF, TELLSTICK_DIM)
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with TELLSTICK_LOCK:
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try:
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last_command = self._tellcore_device.last_sent_command(
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TELLSTICK_TURNON | TELLSTICK_TURNOFF | TELLSTICK_DIM)
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last_data = self._tellcore_device.last_sent_value()
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self._update_model_from_command(last_command, last_data)
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except TelldusError as err:
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_LOGGER.error(err)
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def update(self):
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"""Poll the current state of the device."""
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self._update_from_tellcore()
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