112 lines
3.1 KiB
Python
112 lines
3.1 KiB
Python
"""
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Support for Velbus switches.
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For more details about this platform, please refer to the documentation at
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https://home-assistant.io/components/switch.velbus/
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"""
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import asyncio
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import logging
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import voluptuous as vol
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from homeassistant.const import CONF_NAME, CONF_DEVICES
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from homeassistant.components.switch import SwitchDevice, PLATFORM_SCHEMA
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from homeassistant.components.velbus import DOMAIN
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import homeassistant.helpers.config_validation as cv
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_LOGGER = logging.getLogger(__name__)
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SWITCH_SCHEMA = {
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vol.Required('module'): cv.positive_int,
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vol.Required('channel'): cv.positive_int,
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vol.Required(CONF_NAME): cv.string
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}
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
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vol.Required(CONF_DEVICES):
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vol.All(cv.ensure_list, [SWITCH_SCHEMA])
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})
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DEPENDENCIES = ['velbus']
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def setup_platform(hass, config, add_devices, discovery_info=None):
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"""Set up the Switch."""
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velbus = hass.data[DOMAIN]
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devices = []
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for switch in config[CONF_DEVICES]:
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devices.append(VelbusSwitch(switch, velbus))
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add_devices(devices)
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return True
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class VelbusSwitch(SwitchDevice):
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"""Representation of a switch."""
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def __init__(self, switch, velbus):
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"""Initialize a Velbus switch."""
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self._velbus = velbus
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self._name = switch[CONF_NAME]
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self._module = switch['module']
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self._channel = switch['channel']
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self._state = False
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@asyncio.coroutine
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def async_added_to_hass(self):
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"""Add listener for Velbus messages on bus."""
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def _init_velbus():
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"""Initialize Velbus on startup."""
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self._velbus.subscribe(self._on_message)
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self.get_status()
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yield from self.hass.async_add_job(_init_velbus)
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def _on_message(self, message):
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import velbus
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if isinstance(message, velbus.RelayStatusMessage) and \
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message.address == self._module and \
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message.channel == self._channel:
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self._state = message.is_on()
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self.schedule_update_ha_state()
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@property
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def name(self):
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"""Return the display name of this switch."""
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return self._name
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@property
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def should_poll(self):
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"""Disable polling."""
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return False
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@property
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def is_on(self):
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"""Return true if the switch is on."""
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return self._state
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def turn_on(self, **kwargs):
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"""Instruct the switch to turn on."""
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import velbus
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message = velbus.SwitchRelayOnMessage()
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message.set_defaults(self._module)
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message.relay_channels = [self._channel]
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self._velbus.send(message)
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def turn_off(self, **kwargs):
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"""Instruct the switch to turn off."""
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import velbus
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message = velbus.SwitchRelayOffMessage()
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message.set_defaults(self._module)
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message.relay_channels = [self._channel]
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self._velbus.send(message)
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def get_status(self):
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"""Retrieve current status."""
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import velbus
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message = velbus.ModuleStatusRequestMessage()
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message.set_defaults(self._module)
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message.channels = [self._channel]
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self._velbus.send(message)
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