rework dcf77 (part 2)

include/dcf77.h

@@ -4,18 +4,15 @@
 #include "globals.h"
 #include "timekeeper.h"
 
+#define set_dcfbit(b) (1ULL << (b))
+
 #ifdef DCF77_ACTIVE_LOW
 enum dcf_pinstate { dcf_high, dcf_low };
 #else
 enum dcf_pinstate { dcf_low, dcf_high };
 #endif
 
-enum DCF77_Pulses { dcf_Z, dcf_0, dcf_1 };
-
-void DCF77_Pulse(uint8_t const bit);
-void DCF77_Frame(const struct tm t, uint8_t *frame);
-uint8_t dec2bcd(uint8_t const dec, uint8_t const startpos, uint8_t const endpos,
-                uint8_t *frame);
-uint8_t setParityBit(uint8_t const p);
+void DCF77_Pulse(uint8_t bit);
+uint64_t DCF77_Frame(const struct tm t);
 
 #endif