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56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
/**
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* @file gpio_ctrl.h
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* @brief GPIO hardware control interface for Operation Zero Hour ESA
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* @author Kevin Thomas
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* @date 2026
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*
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* MIT License
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* Copyright (c) 2026 Kevin Thomas
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*/
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#ifndef GPIO_CTRL_H
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#define GPIO_CTRL_H
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#include <stdbool.h>
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#define LED_RED_PIN 16
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#define LED_GREEN_PIN 17
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#define TAMPER_WIRE_PIN 15
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/**
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* @brief Initialize LED and tamper wire GPIO pins.
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* @param void No parameters.
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* @return void No return value.
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*/
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void init_gpio(void);
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/**
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* @brief Drive the armed indication LEDs (red on, green off).
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* @param void No parameters.
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* @return void No return value.
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*/
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void set_led_armed(void);
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/**
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* @brief Drive the safe indication LEDs (green on, red off).
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* @param void No parameters.
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* @return void No return value.
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*/
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void set_led_safe(void);
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/**
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* @brief Drive the tamper flash indication on the red LED.
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* @param state True to turn the red LED on, false to turn it off.
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* @return void No return value.
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*/
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void set_led_tamper_flash(bool state);
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/**
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* @brief Read the tamper wire loop state.
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* @param void No parameters.
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* @return true when the tamper wire is intact, false when cut.
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*/
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bool is_tamper_wire_intact(void);
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#endif /* GPIO_CTRL_H */
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