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80 lines
2.2 KiB
Python
80 lines
2.2 KiB
Python
import esphome.codegen as cg
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import esphome.config_validation as cv
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from esphome import pins
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from esphome.components import i2c
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from esphome.const import (
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CONF_ID,
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CONF_INPUT,
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CONF_NUMBER,
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CONF_MODE,
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CONF_INVERTED,
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CONF_OUTPUT,
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)
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DEPENDENCIES = ["i2c"]
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MULTI_CONF = True
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pcf8574_ns = cg.esphome_ns.namespace("pcf8574")
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PCF8574Component = pcf8574_ns.class_("PCF8574Component", cg.Component, i2c.I2CDevice)
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PCF8574GPIOPin = pcf8574_ns.class_("PCF8574GPIOPin", cg.GPIOPin)
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CONF_PCF8574 = "pcf8574"
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CONF_PCF8575 = "pcf8575"
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CONFIG_SCHEMA = (
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cv.Schema(
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{
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cv.Required(CONF_ID): cv.declare_id(PCF8574Component),
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cv.Optional(CONF_PCF8575, default=False): cv.boolean,
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}
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)
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.extend(cv.COMPONENT_SCHEMA)
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.extend(i2c.i2c_device_schema(0x21))
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)
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async def to_code(config):
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var = cg.new_Pvariable(config[CONF_ID])
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await cg.register_component(var, config)
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await i2c.register_i2c_device(var, config)
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cg.add(var.set_pcf8575(config[CONF_PCF8575]))
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def validate_mode(value):
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if not (value[CONF_INPUT] or value[CONF_OUTPUT]):
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raise cv.Invalid("Mode must be either input or output")
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if value[CONF_INPUT] and value[CONF_OUTPUT]:
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raise cv.Invalid("Mode must be either input or output")
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return value
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PCF8574_PIN_SCHEMA = cv.All(
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{
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cv.GenerateID(): cv.declare_id(PCF8574GPIOPin),
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cv.Required(CONF_PCF8574): cv.use_id(PCF8574Component),
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cv.Required(CONF_NUMBER): cv.int_range(min=0, max=17),
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cv.Optional(CONF_MODE, default={}): cv.All(
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{
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cv.Optional(CONF_INPUT, default=False): cv.boolean,
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cv.Optional(CONF_OUTPUT, default=False): cv.boolean,
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},
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validate_mode,
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),
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cv.Optional(CONF_INVERTED, default=False): cv.boolean,
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}
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)
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@pins.PIN_SCHEMA_REGISTRY.register(CONF_PCF8574, PCF8574_PIN_SCHEMA)
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async def pcf8574_pin_to_code(config):
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var = cg.new_Pvariable(config[CONF_ID])
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parent = await cg.get_variable(config[CONF_PCF8574])
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cg.add(var.set_parent(parent))
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num = config[CONF_NUMBER]
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cg.add(var.set_pin(num))
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cg.add(var.set_inverted(config[CONF_INVERTED]))
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cg.add(var.set_flags(pins.gpio_flags_expr(config[CONF_MODE])))
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return var
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