state.h

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#ifndef STATE_H
#define STATE_H
 
#include "rtos.h"
 
enum __attribute__((packed)) car_state {
    LV_ON = 0,
    PRECHARGED,
    BRAKE_PRESSED,
    RTDS,
    ZOOM,
    SOFT_FAULT,
    HARD_FAULT,
};
 
enum btsf_fault {
    BTSF_OK,
    BTSF_SKILL_ISSUE,
    BTSF_SHORT,
    BTSF_OPEN,
};
 
enum apps_fault {
    APPS_OK,
    APPS_TIMEOUT,
    APPS_IMPLAUSIBILITY,
    APPS_ERROR,
};
 
union car_flags {
    uint32_t as_u32;  // So we can == current and previous values
 
    struct {
        enum car_state state;
 
        struct __packed {
            // Hard faults
            bool bms  : 1;
            bool imd  : 1;
            bool bspd : 1;
 
            // Soft faults
            enum apps_fault apps : 2;
            enum btsf_fault btsf : 2;
 
            // TSSI control
            bool true_fault_stat : 1;
        } fault;
 
        struct __packed {
            // (external, from GPIO)
            bool hv_connected    : 1;
            bool shutdown_closed : 1;
 
            // CAN messages (precharge complete from BMS, drive/cooling aux switches from FSB)
            bool precharge_cplt  : 1;
            bool drive_en        : 1;
            bool cooling_en      : 1;
            // Flag set in timer callback
            bool rtds_timer_cplt : 1;
 
            // (active when measured brake pressure is above the threshold)
            bool brake_pressed : 1;
 
            bool have_reset : 1;
        } status;
    };
};
 
void task_state_init(Global_Handles_t* handles_ptr);
 
float get_brake_pressure();
 
#endif /* STATE_H */