GPStracker/gps-test-tool/main.h

/*
 * main.h - PC Compatible Version
 * Central header for GPS Test Tool - handles PC/embedded switches
 */

#pragma once

#ifdef PC_BUILD
    /* ========== PC BUILD CONFIGURATION ========== */

    /* Standard C headers - all includes centralized here */
    #include <stdio.h>
    #include <stdint.h>
    #include <stdlib.h>
    #include <stddef.h>
    #include <string.h>
    #include <time.h>
    #include <math.h>
    #include <stdarg.h>
    #include <ctype.h>

    /* Prevent AVR headers from being included */
    #define _AVR_PGMSPACE_H_ 1
    #define _AVR_IO_H_ 1
    #define _AVR_WDT_H_ 1
    #define _AVR_SLEEP_H_ 1
    #define _AVR_INTERRUPT_H_ 1
    #define _AVR_EEPROM_H_ 1

    /* PROGMEM/Flash support - no-op on PC */
    #define PROGMEM
    #define __flash
    #define PSTR(s) (s)
    #define strcpy_P strcpy
    #define strcat_P strcat
    #define strcmp_P strcmp
    #define pgm_read_byte(addr) (*(addr))

    /* Stub LCD type to bypass error */
    #define LCD_ALNUM

    /* Interrupt stubs */
    #define cli()
    #define sei()

    /* FatFS types */
    typedef struct {
        FILE *fp;
        char filename[256];
    } FIL;

    typedef uint32_t DWORD;
    typedef unsigned int UINT;
    typedef unsigned char BYTE;
    typedef char TCHAR;
    typedef unsigned char FRESULT;

    /* FatFS functions */
    #define FA_WRITE 0x02
    #define FA_OPEN_ALWAYS 0x10

    static inline FRESULT f_open(FIL *file, const TCHAR *path, BYTE mode) {
        (void)mode;
        file->fp = fopen(path, "w");
        return file->fp ? 0 : 1;
    }

    static inline FRESULT f_write(FIL *file, const void *buf, UINT len, UINT *written) {
        if (!file->fp) return 1;
        *written = fwrite(buf, 1, len, file->fp);
        return (*written == len) ? 0 : 1;
    }

    static inline FRESULT f_close(FIL *file) {
        if (file->fp) {
            fclose(file->fp);
            file->fp = NULL;
            return 0;
        }
        return 1;
    }

    /* xprintf functions */
    extern FILE *debug_output;

    static inline void xputs(const char* str) {
        FILE *out = debug_output ? debug_output : stdout;
        fputs(str, out);
    }

    static inline void xputs_P(const char* str) {
        FILE *out = debug_output ? debug_output : stdout;
        fputs(str, out);
    }

    static inline void xprintf(const char* fmt, ...) {
        FILE *out = debug_output ? debug_output : stdout;
        va_list ap;
        va_start(ap, fmt);
        vfprintf(out, fmt, ap);
        va_end(ap);
    }

    static inline void xsprintf(char* buff, const char* fmt, ...) {
        va_list ap;
        va_start(ap, fmt);
        vsprintf(buff, fmt, ap);
        va_end(ap);
    }

    static inline void xfprintf(void (*put)(int), const char* fmt, ...) {
        /* Stub for PC - just ignore output to UART */
        (void)put;
        (void)fmt;
    }

    /* xatof - Parse float from string (used by NMEA parser) */
    static inline void xatof(const char **str, double *result) {
        char *end;
        *result = strtod(*str, &end);
        *str = end;
    }

    /* Math constants */
    #ifndef M_PI
    #define M_PI 3.14159265358979323846
    #endif

#else
    /* ========== EMBEDDED BUILD CONFIGURATION ========== */

    #define __PROG_TYPES_COMPAT__
    #include <inttypes.h>
    #include <avr/pgmspace.h>
    #include <avr/interrupt.h>
    #include "stime.h"
    #include "expander.h"
    #include "settings.h"

    #if defined(LCD_GRAPHIC)
    #include "UC1601S-I2C.h"
    #elif defined(LCD_ALNUM)
    #include "HD44780-I2C.h"
    #else
    #error No LCD type defined
    #endif

#endif /* PC_BUILD */

/* ========== COMMON DEFINITIONS (both PC and embedded) ========== */

#define IVT_SYNC        180
#define POWER_SW_TIME   300
#define BACKLIGHT_TIME  10000

#define VI_LVL          3.1
#define VI_LVH          3.4
#define VI_MULT         (3.3 / 6.6 / 2.495 * 1024)

/* Configuration flags */
#define CONFFLAG_DISABLE_FILTERS 0x01
#define CONFFLAG_ENABLE_SBAS     0x02
#define CONFFLAG_AUTO_PAUSE      0x04

/* GNSS modes */
#define GNSS_MODE_GPS_GLONASS_GALILEO 0
#define GNSS_MODE_GPS                 1
#define GNSS_MODE_GPS_GALILEO         2
#define GNSS_MODE_GALILEO             3
#define GNSS_MODE_GPS_BEIDOU          4
#define GNSS_MODE_BEIDOU              5

/* GPS initialization states */
#define GPS_INIT_NOT_INITIALIZED 0
#define GPS_INIT_QUERY_SENT      1

/* Location validity states */
#define LOC_INVALID     0
#define LOC_VALID_NEW   1
#define LOC_VALID       2

/* Configuration structure */
struct config_s {
    unsigned char skip_points;
    unsigned char auto_pause_dist;
    unsigned char gnss_mode;
    unsigned char min_sat;
    unsigned char min_sats;  /* Alias for compatibility */
};

/* System structure */
struct system_s {
    struct config_s conf;
    unsigned long int distance;         /* cm */
    unsigned long int elevation_gain;   /* dm (decimeters, 0.1m resolution) */
    unsigned long int elevation_loss;   /* dm (decimeters, 0.1m resolution) */
    unsigned char speed;                /* km/h */
    time_t time_start;
    time_t current_pause_start;
    time_t pause_time;
    unsigned tracking_paused:1;
    unsigned tracking_auto_paused:1;
    unsigned gps_initialized:2;
    unsigned gps_only:1;
    unsigned keypress:1;
    unsigned location_valid:2;
    unsigned sat_count_low:1;
    unsigned sbas:1;
    unsigned satellites_used:5;
};

/* Location structure */
struct location_s {
    float lon;
    float lat;
    float alt;
    time_t time;
};

/* Global variables */
extern volatile struct system_s System;
extern struct location_s location;
extern time_t utc;

/* Configuration flags */
extern unsigned char config_flags;

static inline unsigned char get_flag(unsigned char flag) {
    return (config_flags & flag) ? 1 : 0;
}

/* Time functions */
char *get_iso_time(time_t time, unsigned char local);
void iso_time_to_filename(char *time);

/* GPS and distance functions */
void gps_initialize(void);
void add_distance(float dist);
void add_elevation(float ele_change);

/* Stub functions for PC build */
#ifdef PC_BUILD
static inline void set_timer(int timer, int val) { (void)timer; (void)val; }
static inline int timer_expired(int timer) { (void)timer; return 0; }
static inline void wdt_reset(void) {}
static inline void sleep(void) {}
static inline int uart0_test(void) { return 0; }
static inline unsigned char uart0_get(void) { return 0; }
static inline void uart0_put(char c) { (void)c; }
static inline void uart1_put(char c) { (void)c; }
static unsigned char FLAGS = 0;
#define F_LVD 0x01
#define F_POWEROFF 0x02
#define F_GPSOK 0x04
#define recv_timeout 0
#endif /* PC_BUILD stubs */