Add raspihats binary sensor (#7508)
* Added raspihats binary_sensor platform * Updated .coveragerc to ommit raspihats platforms. * Using vol.Coerce(int) for validation and casting of I2CHat config address
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@ -87,6 +87,7 @@ omit =
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homeassistant/components/*/qwikswitch.py
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homeassistant/components/raspihats.py
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homeassistant/components/*/raspihats.py
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homeassistant/components/rfxtrx.py
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homeassistant/components/*/rfxtrx.py
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131
homeassistant/components/binary_sensor/raspihats.py
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131
homeassistant/components/binary_sensor/raspihats.py
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"""
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Configure a binary_sensor using a digital input from a raspihats board.
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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/binary_sensor.raspihats/
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"""
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import logging
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import voluptuous as vol
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from homeassistant.const import (
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CONF_NAME, CONF_DEVICE_CLASS, DEVICE_DEFAULT_NAME
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)
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import homeassistant.helpers.config_validation as cv
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from homeassistant.components.binary_sensor import (
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PLATFORM_SCHEMA, BinarySensorDevice
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)
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from homeassistant.components.raspihats import (
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CONF_I2C_HATS, CONF_BOARD, CONF_ADDRESS, CONF_CHANNELS, CONF_INDEX,
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CONF_INVERT_LOGIC, I2C_HAT_NAMES, I2C_HATS_MANAGER, I2CHatsException
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)
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_LOGGER = logging.getLogger(__name__)
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DEPENDENCIES = ['raspihats']
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DEFAULT_INVERT_LOGIC = False
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DEFAULT_DEVICE_CLASS = None
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_CHANNELS_SCHEMA = vol.Schema([{
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vol.Required(CONF_INDEX): cv.positive_int,
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vol.Required(CONF_NAME): cv.string,
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vol.Optional(CONF_INVERT_LOGIC, default=DEFAULT_INVERT_LOGIC): cv.boolean,
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vol.Optional(CONF_DEVICE_CLASS, default=DEFAULT_DEVICE_CLASS): cv.string,
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}])
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_I2C_HATS_SCHEMA = vol.Schema([{
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vol.Required(CONF_BOARD): vol.In(I2C_HAT_NAMES),
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vol.Required(CONF_ADDRESS): vol.Coerce(int),
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vol.Required(CONF_CHANNELS): _CHANNELS_SCHEMA
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}])
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
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vol.Optional(CONF_I2C_HATS): _I2C_HATS_SCHEMA,
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})
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# pylint: disable=unused-argument
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def setup_platform(hass, config, add_devices, discovery_info=None):
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"""Setup the raspihats binary_sensor devices."""
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I2CHatBinarySensor.I2C_HATS_MANAGER = hass.data[I2C_HATS_MANAGER]
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binary_sensors = []
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i2c_hat_configs = config.get(CONF_I2C_HATS)
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for i2c_hat_config in i2c_hat_configs:
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address = i2c_hat_config[CONF_ADDRESS]
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board = i2c_hat_config[CONF_BOARD]
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try:
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I2CHatBinarySensor.I2C_HATS_MANAGER.register_board(board, address)
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for channel_config in i2c_hat_config[CONF_CHANNELS]:
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binary_sensors.append(
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I2CHatBinarySensor(
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address,
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channel_config[CONF_INDEX],
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channel_config[CONF_NAME],
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channel_config[CONF_INVERT_LOGIC],
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channel_config[CONF_DEVICE_CLASS]
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)
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)
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except I2CHatsException as ex:
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_LOGGER.error(
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"Failed to register " + board + "I2CHat@" + hex(address) + " "
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+ str(ex)
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)
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add_devices(binary_sensors)
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class I2CHatBinarySensor(BinarySensorDevice):
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"""Represents a binary sensor that uses a I2C-HAT digital input."""
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I2C_HATS_MANAGER = None
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def __init__(self, address, channel, name, invert_logic, device_class):
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"""Initialize sensor."""
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self._address = address
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self._channel = channel
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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._device_class = device_class
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self._state = self.I2C_HATS_MANAGER.read_di(
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self._address,
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self._channel
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)
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def online_callback():
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"""Callback fired when board is online."""
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self.schedule_update_ha_state()
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self.I2C_HATS_MANAGER.register_online_callback(
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self._address,
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self._channel,
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online_callback
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)
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def edge_callback(state):
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"""Read digital input state."""
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self._state = state
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self.schedule_update_ha_state()
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self.I2C_HATS_MANAGER.register_di_callback(
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self._address,
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self._channel,
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edge_callback
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)
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@property
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def device_class(self):
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"""Return the class of this sensor."""
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return self._device_class
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@property
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def name(self):
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"""Return the name of this sensor."""
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return self._name
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@property
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def should_poll(self):
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"""Polling not needed for this sensor."""
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return False
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@property
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def is_on(self):
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"""Return the state of this sensor."""
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return self._state != self._invert_logic
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