88 lines
2.5 KiB
Python
88 lines
2.5 KiB
Python
"""Allows to configure a switch using RPi GPIO."""
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from pi4ioe5v9xxxx import pi4ioe5v9xxxx
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import voluptuous as vol
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from homeassistant.components.switch import PLATFORM_SCHEMA, SwitchEntity
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from homeassistant.const import DEVICE_DEFAULT_NAME
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import homeassistant.helpers.config_validation as cv
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CONF_PINS = "pins"
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CONF_INVERT_LOGIC = "invert_logic"
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CONF_I2CBUS = "i2c_bus"
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CONF_I2CADDR = "i2c_address"
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CONF_BITS = "bits"
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DEFAULT_INVERT_LOGIC = False
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DEFAULT_BITS = 24
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DEFAULT_BUS = 1
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DEFAULT_ADDR = 0x20
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_SWITCHES_SCHEMA = vol.Schema({cv.positive_int: cv.string})
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
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{
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vol.Required(CONF_PINS): _SWITCHES_SCHEMA,
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vol.Optional(CONF_I2CBUS, default=DEFAULT_BUS): cv.positive_int,
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vol.Optional(CONF_I2CADDR, default=DEFAULT_ADDR): cv.positive_int,
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vol.Optional(CONF_BITS, default=DEFAULT_BITS): cv.positive_int,
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vol.Optional(CONF_INVERT_LOGIC, default=DEFAULT_INVERT_LOGIC): cv.boolean,
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}
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)
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def setup_platform(hass, config, add_entities, discovery_info=None):
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"""Set up the swiches devices."""
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pins = config.get(CONF_PINS)
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switches = []
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pi4ioe5v9xxxx.setup(
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i2c_bus=config[CONF_I2CBUS],
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i2c_addr=config[CONF_I2CADDR],
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bits=config[CONF_BITS],
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read_mode=False,
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invert=False,
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)
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for pin, name in pins.items():
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switches.append(Pi4ioe5v9Switch(name, pin, config[CONF_INVERT_LOGIC]))
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add_entities(switches)
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class Pi4ioe5v9Switch(SwitchEntity):
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"""Representation of a pi4ioe5v9 IO expansion IO."""
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def __init__(self, name, pin, invert_logic):
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"""Initialize the pin."""
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self._name = name or DEVICE_DEFAULT_NAME
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self._pin = pin
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self._invert_logic = invert_logic
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self._state = not invert_logic
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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, **kwargs):
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"""Turn the device on."""
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pi4ioe5v9xxxx.pin_to_memory(self._pin, not self._invert_logic)
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pi4ioe5v9xxxx.memory_to_hw()
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self._state = True
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self.schedule_update_ha_state()
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def turn_off(self, **kwargs):
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"""Turn the device off."""
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pi4ioe5v9xxxx.pin_to_memory(self._pin, self._invert_logic)
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pi4ioe5v9xxxx.memory_to_hw()
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self._state = False
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self.schedule_update_ha_state()
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