7 #define CHIME_TIME 5 /* number of RTIs to have the chime on (6.6ms each) */
9 extern volatile u8 chime_count;
11 /* outside world interface */
12 extern inline void chime_start() { chime_count = CHIME_TIME; }
14 void chime(); /* RTI interrupt */
16 /* internal helpers, also could be called from outside world */
17 extern inline void chime_on() { bset((void*)&_io_ports[M6811_PORTA], PORTA_CHIME); }
18 extern inline void chime_off() { bclr((void*)&_io_ports[M6811_PORTA], PORTA_CHIME);}
20 #endif /* _CHIME_H_ */