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72 lines
2.1 KiB
Python
72 lines
2.1 KiB
Python
import logging
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from esphome.const import (
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CONF_INPUT,
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CONF_MODE,
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CONF_NUMBER,
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CONF_OUTPUT,
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CONF_PULLDOWN,
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CONF_PULLUP,
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)
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import esphome.config_validation as cv
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from esphome.pins import check_strapping_pin
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_ESP_SDIO_PINS = {
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6: "Flash Clock",
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7: "Flash Data 0",
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8: "Flash Data 1",
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11: "Flash Command",
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}
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_ESP32_STRAPPING_PINS = {0, 2, 5, 12, 15}
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_LOGGER = logging.getLogger(__name__)
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def esp32_validate_gpio_pin(value):
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if value < 0 or value > 39:
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raise cv.Invalid(f"Invalid pin number: {value} (must be 0-39)")
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if value in _ESP_SDIO_PINS:
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raise cv.Invalid(
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f"This pin cannot be used on ESP32s and is already used by the flash interface (function: {_ESP_SDIO_PINS[value]})"
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)
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if 9 <= value <= 10:
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_LOGGER.warning(
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"Pin %s (9-10) might already be used by the "
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"flash interface in QUAD IO flash mode.",
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value,
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)
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if value in (24, 28, 29, 30, 31):
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# These pins are not exposed in GPIO mux (reason unknown)
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# but they're missing from IO_MUX list in datasheet
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raise cv.Invalid(f"The pin GPIO{value} is not usable on ESP32s.")
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return value
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def esp32_validate_supports(value):
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num = value[CONF_NUMBER]
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mode = value[CONF_MODE]
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is_input = mode[CONF_INPUT]
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is_output = mode[CONF_OUTPUT]
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is_pullup = mode[CONF_PULLUP]
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is_pulldown = mode[CONF_PULLDOWN]
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if is_input:
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# All ESP32 pins support input mode
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pass
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if is_output and 34 <= num <= 39:
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raise cv.Invalid(
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f"GPIO{num} (34-39) does not support output pin mode.",
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[CONF_MODE, CONF_OUTPUT],
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)
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if is_pullup and 34 <= num <= 39:
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raise cv.Invalid(
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f"GPIO{num} (34-39) does not support pullups.", [CONF_MODE, CONF_PULLUP]
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)
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if is_pulldown and 34 <= num <= 39:
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raise cv.Invalid(
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f"GPIO{num} (34-39) does not support pulldowns.", [CONF_MODE, CONF_PULLDOWN]
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)
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check_strapping_pin(value, _ESP32_STRAPPING_PINS, _LOGGER)
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return value
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