refactored

sound-driver/psg.h

@@ -1,8 +1,43 @@
 #ifndef _PSG_H_
 #define _PSG_H_
 
-void psgInit();
 
+typedef enum {
+  e_O_1 = 0,
+  e_O_2,
+  e_O_3,
+  e_O_4,
+  e_O_5,
+  e_O_6,
+  e_O_7,
+  e_O_8
+} t_octave;
+
+typedef enum {
+  e_C = 0,
+  e_Cis,
+  e_D,
+  e_Dis,
+  e_E,
+  e_F,
+  e_Fis,
+  e_G,
+  e_Gis,
+  e_A,
+  e_Ais,
+  e_H
+} t_note;
+
+typedef enum {
+  e_L_1 = 80,
+  e_L_1_2 = 40,
+  e_L_1_4 = 20,
+  e_L_1_8 = 10,
+  e_L_1_16 = 5
+} t_noteLength;
+    
+
+void psgInit();
 void psgPlayTone(uint8_t channel, t_octave octave, t_note note);