23 lines
721 B
C
23 lines
721 B
C
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#pragma once
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#include <stdbool.h>
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#include <stddef.h>
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/* GPIO pin range defaults for ESP32-S3 (safe user-accessible pins) */
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#define MIMI_GPIO_MIN_PIN 1
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#define MIMI_GPIO_MAX_PIN 21
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#define MIMI_GPIO_ALLOWED_CSV "" /* empty = use min/max range */
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/**
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* Check if a pin is allowed for user GPIO operations.
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* Validates against the allowlist or default range, and blocks
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* pins reserved for flash/PSRAM on ESP32.
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*/
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bool gpio_policy_pin_is_allowed(int pin);
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/**
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* Write a human-readable hint if the pin is forbidden for a known reason.
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* Returns true if a hint was written (and the caller should return the error).
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*/
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bool gpio_policy_pin_forbidden_hint(int pin, char *result, size_t result_len);
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