psg.h

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#ifndef _PSG_H_
#define _PSG_H_

#define PSG_PORT            0xC00011

#define PSG_ENVELOPE_MIN    15
#define PSG_ENVELOPE_MAX    0

#define PSG_NOISE_TYPE_PERIODIC 0
#define PSG_NOISE_TYPE_WHITE    1

#define PSG_NOISE_FREQ_CLOCK2   0
#define PSG_NOISE_FREQ_CLOCK4   1
#define PSG_NOISE_FREQ_CLOCK8   2
#define PSG_NOISE_FREQ_TONE3    3
 

#define PSG_init()  _Pragma("GCC error \"This method is deprecated, use PSG_reset() instead.\"")

void PSG_reset(void);

void PSG_write(u8 data);

void PSG_setEnvelope(u8 channel, u8 value);
void PSG_setTone(u8 channel, u16 value);
void PSG_setToneLow(u8 channel, u8 value);
void PSG_setFrequency(u8 channel, u16 value);
void PSG_setNoise(u8 type, u8 frequency);
 
 
#endif // _PSG_H_