gadget-tester/ui.h

#ifndef UI_H
#define UI_H
#include <stdint.h>

void ui_init(void);

struct display_menu {
    struct display_menu *next;
    int entry_n;
    struct display_menu_entry {
        char title[16];
        void (*action)(const void *arg);
        const void *arg;
    } entry[8];

};

const struct display_menu MainMenu, MeasureMenu, SignalGenMenu,
      ExtraMenu;

void ui_display_menu(const struct display_menu *menu);
void ui_button_press(uint8_t b, int hold);

struct display_menu *CurrentMenu;

/* Defined in main to intercept input controls */
void set_input_callback(void (*cb)(uint8_t press, int hold));
void clear_input_callback(void);
void set_keepalive(void (*cb)(void));
void clear_keepalive(void);

#endif