log_format.h

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#ifndef LOG_FORMAT_H
#define LOG_FORMAT_H
 
#include <stdint.h>
 
#define LOG_FORMAT       1u
#define LOG_MAGIC        0x474C4341u      
#define LOG_SECTOR       4096u
#define LOG_PAGE         256u
#define LOG_HDR_SIZE     20u
#define LOG_REC_OVERHEAD 3u               
#define LOG_REC_MAX      64u              
#pragma pack(push, 1)
typedef struct {
    uint32_t magic;
    uint32_t serial;      
    uint16_t log_id;      
    uint16_t seq;         
    uint32_t t0_ms;       
    uint8_t  format;      
    uint8_t  rsv;
    uint16_t crc;         
} log_sector_hdr_t;
 
/* ---- record types ---- */
enum {
    LR_INFO   = 0x01,     
    LR_TIME   = 0x02,     
    LR_ATT    = 0x10,     
    LR_VERT   = 0x11,     
    LR_FLIGHT = 0x12,     
    LR_EVENT  = 0x13,     
    LR_EST    = 0x14,     
    LR_POWER  = 0x20,     
    LR_DROP   = 0x7F      
};
 
typedef struct {          
    uint8_t  fw[3];
    char     hw_rev;
    uint8_t  format;
    uint32_t t0_ms;
    uint16_t sensors;     
    char     name[16];
} log_info_t;             
typedef struct {          
    uint32_t t_ms;
    uint32_t unix_s;      
    uint16_t ms;
    int16_t  tz_min;      
} log_time_t;             
typedef struct {          
    uint32_t t_ms;
    int16_t  q[4];        
    int16_t  gyro[3];     
    int16_t  acc[3];      
} log_att_t;              
typedef struct {          
    uint32_t t_ms;
    int32_t  h_mm;        
    int16_t  vz_mms;
    int32_t  h_sp_mm;     
    int16_t  vz_sp_mms;
    uint8_t  thrust;      
    uint16_t tof_mm;      
    uint8_t  flow_q;      
    uint32_t baro_pa;     
    uint8_t  flags;       
} log_vert_t;             
typedef struct {          
    uint32_t t_ms;
    uint8_t  armed, mode, autom, failsafe;
    uint8_t  flags;       
    int8_t   stick[4];    
    uint16_t silence_ms;  
} log_flight_t;           
typedef struct {          
    uint32_t t_ms;
    uint8_t  level;
    uint16_t code;
    int32_t  arg;
} log_event_t;            
typedef struct {          
    uint32_t t_ms;
    int16_t  gyro_bias[3];  
    uint16_t att_unc_cdeg;
    uint16_t vib_mg;
    uint16_t loop_hz;
    uint16_t jitter_us;
    uint8_t  cpu_pct;
    uint8_t  mag_interf_pct;
} log_est_t;              
typedef struct {          
    uint32_t t_ms;
    uint16_t vbat_mv;
    int16_t  current_ca;
    uint16_t used_mah;
    uint16_t cell_mv;     
    uint16_t cell_rest_mv;
    uint8_t  pct;
    uint8_t  level;       
    uint16_t r_cell_mohm;
    uint8_t  cells;       
} log_power_t;            
typedef struct {          
    uint32_t t_ms;
    uint16_t lost;        
    uint8_t  source;      
} log_drop_t;             
#pragma pack(pop)
 
_Static_assert(sizeof(log_sector_hdr_t) == LOG_HDR_SIZE, "sector header");
_Static_assert(sizeof(log_info_t)   == 27, "LR_INFO");
_Static_assert(sizeof(log_time_t)   == 12, "LR_TIME");
_Static_assert(sizeof(log_att_t)    == 24, "LR_ATT");
_Static_assert(sizeof(log_vert_t)   == 25, "LR_VERT");
_Static_assert(sizeof(log_flight_t) == 15, "LR_FLIGHT");
_Static_assert(sizeof(log_event_t)  == 11, "LR_EVENT");
_Static_assert(sizeof(log_est_t)    == 20, "LR_EST");
_Static_assert(sizeof(log_power_t)  == 19, "LR_POWER");
_Static_assert(sizeof(log_drop_t)   == 7,  "LR_DROP");
 
uint8_t  log_crc8(const uint8_t *p, uint32_t n);
uint16_t log_crc16(const uint8_t *p, uint32_t n);
 
#endif /* LOG_FORMAT_H */