core/homeassistant/components/mochad/light.py

130 lines
4.6 KiB
Python

"""Support for X10 dimmer over Mochad."""
import logging
import voluptuous as vol
from homeassistant.components.light import (
ATTR_BRIGHTNESS, SUPPORT_BRIGHTNESS, Light, PLATFORM_SCHEMA)
from homeassistant.components import mochad
from homeassistant.const import (
CONF_NAME, CONF_PLATFORM, CONF_DEVICES, CONF_ADDRESS)
from homeassistant.helpers import config_validation as cv
_LOGGER = logging.getLogger(__name__)
CONF_BRIGHTNESS_LEVELS = 'brightness_levels'
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
vol.Required(CONF_PLATFORM): mochad.DOMAIN,
CONF_DEVICES: [{
vol.Optional(CONF_NAME): cv.string,
vol.Required(CONF_ADDRESS): cv.x10_address,
vol.Optional(mochad.CONF_COMM_TYPE): cv.string,
vol.Optional(CONF_BRIGHTNESS_LEVELS, default=32):
vol.All(vol.Coerce(int), vol.In([32, 64, 256])),
}]
})
def setup_platform(hass, config, add_entities, discovery_info=None):
"""Set up X10 dimmers over a mochad controller."""
devs = config.get(CONF_DEVICES)
add_entities([MochadLight(
hass, mochad.CONTROLLER.ctrl, dev) for dev in devs])
return True
class MochadLight(Light):
"""Representation of a X10 dimmer over Mochad."""
def __init__(self, hass, ctrl, dev):
"""Initialize a Mochad Light Device."""
from pymochad import device
self._controller = ctrl
self._address = dev[CONF_ADDRESS]
self._name = dev.get(
CONF_NAME, 'x10_light_dev_{}'.format(self._address))
self._comm_type = dev.get(mochad.CONF_COMM_TYPE, 'pl')
self.light = device.Device(
ctrl, self._address, comm_type=self._comm_type)
self._brightness = 0
self._state = self._get_device_status()
self._brightness_levels = dev.get(CONF_BRIGHTNESS_LEVELS) - 1
@property
def brightness(self):
"""Return the brightness of this light between 0..255."""
return self._brightness
def _get_device_status(self):
"""Get the status of the light from mochad."""
with mochad.REQ_LOCK:
status = self.light.get_status().rstrip()
return status == 'on'
@property
def name(self):
"""Return the display name of this light."""
return self._name
@property
def is_on(self):
"""Return true if the light is on."""
return self._state
@property
def supported_features(self):
"""Return supported features."""
return SUPPORT_BRIGHTNESS
@property
def assumed_state(self):
"""X10 devices are normally 1-way so we have to assume the state."""
return True
def _calculate_brightness_value(self, value):
return int(value * (float(self._brightness_levels) / 255.0))
def _adjust_brightness(self, brightness):
if self._brightness > brightness:
bdelta = self._brightness - brightness
mochad_brightness = self._calculate_brightness_value(bdelta)
self.light.send_cmd("dim {}".format(mochad_brightness))
self._controller.read_data()
elif self._brightness < brightness:
bdelta = brightness - self._brightness
mochad_brightness = self._calculate_brightness_value(bdelta)
self.light.send_cmd("bright {}".format(mochad_brightness))
self._controller.read_data()
def turn_on(self, **kwargs):
"""Send the command to turn the light on."""
brightness = kwargs.get(ATTR_BRIGHTNESS, 255)
with mochad.REQ_LOCK:
if self._brightness_levels > 32:
out_brightness = self._calculate_brightness_value(brightness)
self.light.send_cmd('xdim {}'.format(out_brightness))
self._controller.read_data()
else:
self.light.send_cmd("on")
self._controller.read_data()
# There is no persistence for X10 modules so a fresh on command
# will be full brightness
if self._brightness == 0:
self._brightness = 255
self._adjust_brightness(brightness)
self._brightness = brightness
self._state = True
def turn_off(self, **kwargs):
"""Send the command to turn the light on."""
with mochad.REQ_LOCK:
self.light.send_cmd('off')
self._controller.read_data()
# There is no persistence for X10 modules so we need to prepare
# to track a fresh on command will full brightness
if self._brightness_levels == 31:
self._brightness = 0
self._state = False