mirror of
https://github.com/esphome/esphome.git
synced 2025-09-02 19:32:19 +01:00
82 lines
2.8 KiB
Python
82 lines
2.8 KiB
Python
import logging
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from esphome import pins
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import esphome.codegen as cg
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from esphome.components import binary_sensor
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import esphome.config_validation as cv
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from esphome.const import CONF_ID, CONF_NAME, CONF_NUMBER, CONF_PIN
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from esphome.core import CORE
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from .. import gpio_ns
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_LOGGER = logging.getLogger(__name__)
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GPIOBinarySensor = gpio_ns.class_(
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"GPIOBinarySensor", binary_sensor.BinarySensor, cg.Component
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)
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CONF_USE_INTERRUPT = "use_interrupt"
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CONF_INTERRUPT_TYPE = "interrupt_type"
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INTERRUPT_TYPES = {
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"RISING": gpio_ns.INTERRUPT_RISING_EDGE,
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"FALLING": gpio_ns.INTERRUPT_FALLING_EDGE,
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"ANY": gpio_ns.INTERRUPT_ANY_EDGE,
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}
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CONFIG_SCHEMA = (
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binary_sensor.binary_sensor_schema(GPIOBinarySensor)
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.extend(
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{
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cv.Required(CONF_PIN): pins.gpio_input_pin_schema,
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# Interrupts are disabled by default for bk72xx, ln882x, and rtl87xx platforms
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# due to hardware limitations or lack of reliable interrupt support. This ensures
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# stable operation on these platforms. Future maintainers should verify platform
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# capabilities before changing this default behavior.
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cv.SplitDefault(
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CONF_USE_INTERRUPT,
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bk72xx=False,
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esp32=True,
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esp8266=True,
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host=True,
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ln882x=False,
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nrf52=True,
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rp2040=True,
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rtl87xx=False,
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): cv.boolean,
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cv.Optional(CONF_INTERRUPT_TYPE, default="ANY"): cv.enum(
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INTERRUPT_TYPES, upper=True
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),
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}
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)
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.extend(cv.COMPONENT_SCHEMA)
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)
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async def to_code(config):
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var = await binary_sensor.new_binary_sensor(config)
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await cg.register_component(var, config)
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pin = await cg.gpio_pin_expression(config[CONF_PIN])
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cg.add(var.set_pin(pin))
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# Check for ESP8266 GPIO16 interrupt limitation
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# GPIO16 on ESP8266 is a special pin that doesn't support interrupts through
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# the Arduino attachInterrupt() function. This is the only known GPIO pin
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# across all supported platforms that has this limitation, so we handle it
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# here instead of in the platform-specific code.
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use_interrupt = config[CONF_USE_INTERRUPT]
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if use_interrupt and CORE.is_esp8266 and config[CONF_PIN][CONF_NUMBER] == 16:
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_LOGGER.warning(
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"GPIO binary_sensor '%s': GPIO16 on ESP8266 doesn't support interrupts. "
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"Falling back to polling mode (same as in ESPHome <2025.7). "
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"The sensor will work exactly as before, but other pins have better "
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"performance with interrupts.",
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config.get(CONF_NAME, config[CONF_ID]),
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)
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use_interrupt = False
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cg.add(var.set_use_interrupt(use_interrupt))
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if use_interrupt:
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cg.add(var.set_interrupt_type(config[CONF_INTERRUPT_TYPE]))
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