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sound-driver/psg.h

@@ -1,6 +1,7 @@
 #ifndef _PSG_H_
 #define _PSG_H_
 
+#include <stdint.h>
 
 typedef enum {
   e_O_1 = 0,
@@ -31,6 +32,7 @@ typedef enum {
 
 void psgInit();
 void psgPlayTone(uint8_t channel, t_octave octave, t_note note);
-
+void psgWriteFrequency(uint8_t channel, uint16_t frequencyCode);
+void psgWrite(uint8_t address, uint8_t data);
 
 #endif // _PSG_H_