#ifndef LATENCY_H
#define LATENCY_H

#include <stdbool.h>
#include <stdint.h>

// Measurement result
typedef struct {
    bool valid;         // True if measurement succeeded
    float latency_ms;   // Measured latency in milliseconds
    uint64_t latency_us; // Raw latency in microseconds
} measurement_t;

// Statistics
typedef struct {
    float min_ms;
    float max_ms;
    float avg_ms;
    uint32_t count;
} stats_t;

// Initialize latency measurement hardware
void latency_init(void);

// Perform a single latency measurement
// Returns result struct with valid flag and latency value
measurement_t latency_measure(void);

// Get current statistics
stats_t latency_get_stats(void);

// Reset statistics
void latency_reset_stats(void);

// Add measurement to statistics
void latency_add_to_stats(float latency_ms);

#endif // LATENCY_H