heartbeat.h

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#ifndef HEARTBEAT_H
#define HEARTBEAT_H
 
#include "common/phal/gpio.h"
#include "common/freertos/freertos.h"
 
static constexpr uint32_t PREFLIGHT_DURATION_MS = 1500;
static constexpr uint32_t HEARTBEAT_PERIOD_MS = 100;
static constexpr uint32_t CONN_LED_TIMEOUT_MS = 1000;
 
typedef enum : uint8_t {
    HEARTBEAT_STATE_PREFLIGHT,
    HEARTBEAT_STATE_NORMAL
} heartbeat_state_t;
 
typedef struct {
    GPIO_TypeDef *heartbeat_port;
    uint32_t heartbeat_pin;
    GPIO_TypeDef *connection_port;
    uint32_t connection_pin;
    GPIO_TypeDef *error_port;
    uint32_t error_pin;
    void (*preflight_callback)(void);
    heartbeat_state_t state;
} status_leds_t;
 
extern void heartbeat_task(status_leds_t *leds);
 
#define DEFINE_HEARTBEAT_TASK(PREFLIGHT_CALLBACK) \
    status_leds_t status_leds = { \
        .heartbeat_port = HEARTBEAT_LED_PORT, \
        .heartbeat_pin = HEARTBEAT_LED_PIN, \
        .connection_port = CONNECTION_LED_PORT, \
        .connection_pin = CONNECTION_LED_PIN, \
        .error_port = ERROR_LED_PORT, \
        .error_pin = ERROR_LED_PIN, \
        .preflight_callback = (PREFLIGHT_CALLBACK), \
        .state = HEARTBEAT_STATE_PREFLIGHT \
    }; \
    void heartbeat_wrapper(void) { heartbeat_task(&status_leds); }; \
    DEFINE_TASK(heartbeat_wrapper, HEARTBEAT_PERIOD_MS, osPriorityLow, STACK_512)
 
#define START_HEARTBEAT_TASK() START_TASK(heartbeat_wrapper)
 
#endif // HEARTBEAT_H