88 lines
2.5 KiB
Python
88 lines
2.5 KiB
Python
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"""
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Allows to configure a switch using the PiFace Digital I/O module on a RPi.
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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.rpi_pfio/
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"""
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import logging
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import voluptuous as vol
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from homeassistant.components.switch import PLATFORM_SCHEMA
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import homeassistant.components.rpi_pfio as rpi_pfio
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from homeassistant.const import DEVICE_DEFAULT_NAME
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from homeassistant.helpers.entity import ToggleEntity
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import homeassistant.helpers.config_validation as cv
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_LOGGER = logging.getLogger(__name__)
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DEPENDENCIES = ['rpi_pfio']
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ATTR_INVERT_LOGIC = 'invert_logic'
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ATTR_NAME = 'name'
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CONF_PORTS = 'ports'
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DEFAULT_INVERT_LOGIC = False
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PORT_SCHEMA = vol.Schema({
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vol.Optional(ATTR_NAME, default=None): cv.string,
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vol.Optional(ATTR_INVERT_LOGIC, default=DEFAULT_INVERT_LOGIC): cv.boolean
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})
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
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vol.Optional(CONF_PORTS, default={}): vol.Schema({
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cv.positive_int: PORT_SCHEMA
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})
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})
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def setup_platform(hass, config, add_devices, discovery_info=None):
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"""Setup the PiFace Digital Output devices."""
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switches = []
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ports = config.get(CONF_PORTS)
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for port, port_entity in ports.items():
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name = port_entity[ATTR_NAME]
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invert_logic = port_entity[ATTR_INVERT_LOGIC]
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switches.append(RPiPFIOSwitch(port, name, invert_logic))
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add_devices(switches)
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class RPiPFIOSwitch(ToggleEntity):
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"""Representation of a PiFace Digital Output."""
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def __init__(self, port, name, invert_logic):
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"""Initialize the pin."""
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self._port = port
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self._name = name or DEVICE_DEFAULT_NAME
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self._invert_logic = invert_logic
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self._state = False
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rpi_pfio.write_output(self._port, 1 if self._invert_logic else 0)
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@property
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def name(self):
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"""Return the name of the 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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"""No polling needed."""
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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 device is on."""
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return self._state
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def turn_on(self):
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"""Turn the device on."""
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rpi_pfio.write_output(self._port, 0 if self._invert_logic else 1)
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self._state = True
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self.schedule_update_ha_state()
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def turn_off(self):
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"""Turn the device off."""
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rpi_pfio.write_output(self._port, 1 if self._invert_logic else 0)
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self._state = False
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self.schedule_update_ha_state()
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