openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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#pragma once
typedef struct interrupt {
IRQn_Type irq_type;
void (*handler)(void);
uint32_t call_counter;
uint32_t call_rate;
uint32_t max_call_rate; // Call rate is defined as the amount of calls each second
uint32_t call_rate_fault;
} interrupt;
void interrupt_timer_init(void);
uint32_t microsecond_timer_get(void);
void unused_interrupt_handler(void);
extern interrupt interrupts[NUM_INTERRUPTS];
#define REGISTER_INTERRUPT(irq_num, func_ptr, call_rate_max, rate_fault) \
interrupts[irq_num].irq_type = (irq_num); \
interrupts[irq_num].handler = (func_ptr); \
interrupts[irq_num].call_counter = 0U; \
interrupts[irq_num].call_rate = 0U; \
interrupts[irq_num].max_call_rate = (call_rate_max); \
interrupts[irq_num].call_rate_fault = (rate_fault);
extern float interrupt_load;
void handle_interrupt(IRQn_Type irq_type);
// Every second
void interrupt_timer_handler(void);
void init_interrupts(bool check_rate_limit);