68 lines
2.0 KiB
Python
68 lines
2.0 KiB
Python
import logging
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from typing import Any
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import esphome.config_validation as cv
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from esphome.const import CONF_INPUT, CONF_MODE, CONF_NUMBER, CONF_SCL, CONF_SDA
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from esphome.pins import check_strapping_pin
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# https://github.com/espressif/esp-idf/blob/master/components/esp_hal_i2c/esp32c6/include/hal/i2c_ll.h
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_ESP32C6_I2C_LP_PINS = {"SDA": 6, "SCL": 7}
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_ESP32C6_SPI_PSRAM_PINS = {
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24: "SPICS0",
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25: "SPIQ",
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26: "SPIWP",
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27: "VDD_SPI",
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28: "SPIHD",
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29: "SPICLK",
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30: "SPID",
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}
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_ESP32C6_USB_JTAG_PINS = {12, 13}
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_ESP32C6_STRAPPING_PINS = {4, 5, 8, 9, 15}
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_LOGGER = logging.getLogger(__name__)
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def esp32_c6_validate_gpio_pin(value: int) -> int:
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if value < 0 or value > 30:
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raise cv.Invalid(f"Invalid pin number: {value} (must be 0-30)")
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if value in _ESP32C6_SPI_PSRAM_PINS:
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raise cv.Invalid(
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f"This pin cannot be used on ESP32-C6s and is already used by the SPI/PSRAM interface (function: {_ESP32C6_SPI_PSRAM_PINS[value]})"
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)
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if value in _ESP32C6_USB_JTAG_PINS:
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_LOGGER.warning(
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"GPIO%d is used by the USB-Serial-JTAG interface."
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" Using this pin as GPIO will conflict with USB-Serial-JTAG.",
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value,
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)
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return value
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def esp32_c6_validate_supports(value: dict[str, Any]) -> dict[str, Any]:
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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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if num < 0 or num > 30:
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raise cv.Invalid(f"Invalid pin number: {num} (must be 0-30)")
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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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check_strapping_pin(value, _ESP32C6_STRAPPING_PINS, _LOGGER)
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return value
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def esp32_c6_validate_lp_i2c(value):
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lp_sda_pin = _ESP32C6_I2C_LP_PINS["SDA"]
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lp_scl_pin = _ESP32C6_I2C_LP_PINS["SCL"]
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if int(value[CONF_SDA]) != lp_sda_pin or int(value[CONF_SCL]) != lp_scl_pin:
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raise cv.Invalid(
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f"Low power i2c interface is only supported on GPIO{lp_sda_pin} SDA and GPIO{lp_scl_pin} SCL for ESP32-C6"
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)
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return value
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