"""Support for KNX/IP lights.""" from enum import Enum import voluptuous as vol from homeassistant.components.light import ( ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, ATTR_HS_COLOR, PLATFORM_SCHEMA, SUPPORT_BRIGHTNESS, SUPPORT_COLOR, SUPPORT_COLOR_TEMP, Light) from homeassistant.const import CONF_NAME from homeassistant.core import callback import homeassistant.helpers.config_validation as cv import homeassistant.util.color as color_util from homeassistant.components.knx import ATTR_DISCOVER_DEVICES, DATA_KNX CONF_ADDRESS = 'address' CONF_STATE_ADDRESS = 'state_address' CONF_BRIGHTNESS_ADDRESS = 'brightness_address' CONF_BRIGHTNESS_STATE_ADDRESS = 'brightness_state_address' CONF_COLOR_ADDRESS = 'color_address' CONF_COLOR_STATE_ADDRESS = 'color_state_address' CONF_COLOR_TEMP_ADDRESS = 'color_temperature_address' CONF_COLOR_TEMP_STATE_ADDRESS = 'color_temperature_state_address' CONF_COLOR_TEMP_MODE = 'color_temperature_mode' CONF_MIN_KELVIN = 'min_kelvin' CONF_MAX_KELVIN = 'max_kelvin' DEFAULT_NAME = 'KNX Light' DEFAULT_COLOR = [255, 255, 255] DEFAULT_BRIGHTNESS = 255 DEFAULT_COLOR_TEMP_MODE = 'absolute' DEFAULT_MIN_KELVIN = 2700 # 370 mireds DEFAULT_MAX_KELVIN = 6000 # 166 mireds DEPENDENCIES = ['knx'] class ColorTempModes(Enum): """Color temperature modes for config validation.""" absolute = "DPT-7.600" relative = "DPT-5.001" PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({ vol.Required(CONF_ADDRESS): cv.string, vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string, vol.Optional(CONF_STATE_ADDRESS): cv.string, vol.Optional(CONF_BRIGHTNESS_ADDRESS): cv.string, vol.Optional(CONF_BRIGHTNESS_STATE_ADDRESS): cv.string, vol.Optional(CONF_COLOR_ADDRESS): cv.string, vol.Optional(CONF_COLOR_STATE_ADDRESS): cv.string, vol.Optional(CONF_COLOR_TEMP_ADDRESS): cv.string, vol.Optional(CONF_COLOR_TEMP_STATE_ADDRESS): cv.string, vol.Optional(CONF_COLOR_TEMP_MODE, default=DEFAULT_COLOR_TEMP_MODE): cv.enum(ColorTempModes), vol.Optional(CONF_MIN_KELVIN, default=DEFAULT_MIN_KELVIN): vol.All(vol.Coerce(int), vol.Range(min=1)), vol.Optional(CONF_MAX_KELVIN, default=DEFAULT_MAX_KELVIN): vol.All(vol.Coerce(int), vol.Range(min=1)), }) async def async_setup_platform(hass, config, async_add_entities, discovery_info=None): """Set up lights for KNX platform.""" if discovery_info is not None: async_add_entities_discovery(hass, discovery_info, async_add_entities) else: async_add_entities_config(hass, config, async_add_entities) @callback def async_add_entities_discovery(hass, discovery_info, async_add_entities): """Set up lights 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(KNXLight(device)) async_add_entities(entities) @callback def async_add_entities_config(hass, config, async_add_entities): """Set up light for KNX platform configured within platform.""" import xknx group_address_tunable_white = None group_address_tunable_white_state = None group_address_color_temp = None group_address_color_temp_state = None if config[CONF_COLOR_TEMP_MODE] == ColorTempModes.absolute: group_address_color_temp = config.get(CONF_COLOR_TEMP_ADDRESS) group_address_color_temp_state = \ config.get(CONF_COLOR_TEMP_STATE_ADDRESS) elif config[CONF_COLOR_TEMP_MODE] == ColorTempModes.relative: group_address_tunable_white = config.get(CONF_COLOR_TEMP_ADDRESS) group_address_tunable_white_state = \ config.get(CONF_COLOR_TEMP_STATE_ADDRESS) light = xknx.devices.Light( hass.data[DATA_KNX].xknx, name=config[CONF_NAME], group_address_switch=config[CONF_ADDRESS], group_address_switch_state=config.get(CONF_STATE_ADDRESS), group_address_brightness=config.get(CONF_BRIGHTNESS_ADDRESS), group_address_brightness_state=config.get( CONF_BRIGHTNESS_STATE_ADDRESS), group_address_color=config.get(CONF_COLOR_ADDRESS), group_address_color_state=config.get(CONF_COLOR_STATE_ADDRESS), group_address_tunable_white=group_address_tunable_white, group_address_tunable_white_state=group_address_tunable_white_state, group_address_color_temperature=group_address_color_temp, group_address_color_temperature_state=group_address_color_temp_state, min_kelvin=config[CONF_MIN_KELVIN], max_kelvin=config[CONF_MAX_KELVIN]) hass.data[DATA_KNX].xknx.devices.add(light) async_add_entities([KNXLight(light)]) class KNXLight(Light): """Representation of a KNX light.""" def __init__(self, device): """Initialize of KNX light.""" self.device = device self._min_kelvin = device.min_kelvin self._max_kelvin = device.max_kelvin self._min_mireds = \ color_util.color_temperature_kelvin_to_mired(self._max_kelvin) self._max_mireds = \ color_util.color_temperature_kelvin_to_mired(self._min_kelvin) @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) async def async_added_to_hass(self): """Store register state change callback.""" self.async_register_callbacks() @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 brightness(self): """Return the brightness of this light between 0..255.""" if self.device.supports_color: if self.device.current_color is None: return None return max(self.device.current_color) if self.device.supports_brightness: return self.device.current_brightness return None @property def hs_color(self): """Return the HS color value.""" if self.device.supports_color: rgb = self.device.current_color if rgb is None: return None return color_util.color_RGB_to_hs(*rgb) return None @property def color_temp(self): """Return the color temperature in mireds.""" if self.device.supports_color_temperature: kelvin = self.device.current_color_temperature if kelvin is not None: return color_util.color_temperature_kelvin_to_mired(kelvin) if self.device.supports_tunable_white: relative_ct = self.device.current_tunable_white if relative_ct is not None: # as KNX devices typically use Kelvin we use it as base for # calculating ct from percent return color_util.color_temperature_kelvin_to_mired( self._min_kelvin + ( (relative_ct / 255) * (self._max_kelvin - self._min_kelvin))) return None @property def min_mireds(self): """Return the coldest color temp this light supports in mireds.""" return self._min_mireds @property def max_mireds(self): """Return the warmest color temp this light supports in mireds.""" return self._max_mireds @property def effect_list(self): """Return the list of supported effects.""" return None @property def effect(self): """Return the current effect.""" return None @property def is_on(self): """Return true if light is on.""" return self.device.state @property def supported_features(self): """Flag supported features.""" flags = 0 if self.device.supports_brightness: flags |= SUPPORT_BRIGHTNESS if self.device.supports_color: flags |= SUPPORT_COLOR | SUPPORT_BRIGHTNESS if self.device.supports_color_temperature or \ self.device.supports_tunable_white: flags |= SUPPORT_COLOR_TEMP return flags async def async_turn_on(self, **kwargs): """Turn the light on.""" brightness = kwargs.get(ATTR_BRIGHTNESS, self.brightness) hs_color = kwargs.get(ATTR_HS_COLOR, self.hs_color) mireds = kwargs.get(ATTR_COLOR_TEMP, self.color_temp) update_brightness = ATTR_BRIGHTNESS in kwargs update_color = ATTR_HS_COLOR in kwargs update_color_temp = ATTR_COLOR_TEMP in kwargs # always only go one path for turning on (avoid conflicting changes # and weird effects) if self.device.supports_brightness and \ (update_brightness and not update_color): # if we don't need to update the color, try updating brightness # directly if supported; don't do it if color also has to be # changed, as RGB color implicitly sets the brightness as well await self.device.set_brightness(brightness) elif self.device.supports_color and \ (update_brightness or update_color): # change RGB color (includes brightness) # if brightness or hs_color was not yet set use the default value # to calculate RGB from as a fallback if brightness is None: brightness = DEFAULT_BRIGHTNESS if hs_color is None: hs_color = DEFAULT_COLOR await self.device.set_color( color_util.color_hsv_to_RGB(*hs_color, brightness * 100 / 255)) elif self.device.supports_color_temperature and \ update_color_temp: # change color temperature without ON telegram kelvin = int(color_util.color_temperature_mired_to_kelvin(mireds)) if kelvin > self._max_kelvin: kelvin = self._max_kelvin elif kelvin < self._min_kelvin: kelvin = self._min_kelvin await self.device.set_color_temperature(kelvin) elif self.device.supports_tunable_white and \ update_color_temp: # calculate relative_ct from Kelvin to fit typical KNX devices kelvin = int(color_util.color_temperature_mired_to_kelvin(mireds)) relative_ct = int(255 * (kelvin - self._min_kelvin) / (self._max_kelvin - self._min_kelvin)) await self.device.set_tunable_white(relative_ct) else: # no color/brightness change requested, so just turn it on await self.device.set_on() async def async_turn_off(self, **kwargs): """Turn the light off.""" await self.device.set_off()