text: #ifndef SCREEN_H
  #define SCREEN_H
  
  #include "global.h"
  
  enum SCREEN {SCR_BOOT, SCR_DISCOVER, SCR_DISCOVER_RESULT, SCR_INSERT, SCR_SCANNING, SCR_SELECT, SCR_PLAY};
  
  void screen_init(void);
  void screen_draw(uint8_t screen);
  
  #endif
  