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#pragma once
#ifndef __CEM3394_H__
#define __CEM3394_H__
#define CEM3394_SAMPLE_RATE (44100*4)
/* interface */
typedef struct _cem3394_interface cem3394_interface;
struct _cem3394_interface
{
double vco_zero_freq; /* frequency at 0V for VCO */
double filter_zero_freq; /* frequency at 0V for filter */
void (*external)(int, int, short *);/* external input source */
};
/* inputs */
enum
{
CEM3394_VCO_FREQUENCY = 0,
CEM3394_MODULATION_AMOUNT,
CEM3394_WAVE_SELECT,
CEM3394_PULSE_WIDTH,
CEM3394_MIXER_BALANCE,
CEM3394_FILTER_RESONANCE,
CEM3394_FILTER_FREQENCY,
CEM3394_FINAL_GAIN
};
/* set the voltage going to a particular parameter */
void cem3394_set_voltage(int chip, int input, double voltage);
/* get the translated parameter associated with the given input as follows:
CEM3394_VCO_FREQUENCY: frequency in Hz
CEM3394_MODULATION_AMOUNT: scale factor, 0.0 to 2.0
CEM3394_WAVE_SELECT: voltage from this line
CEM3394_PULSE_WIDTH: width fraction, from 0.0 to 1.0
CEM3394_MIXER_BALANCE: balance, from -1.0 to 1.0
CEM3394_FILTER_RESONANCE: resonance, from 0.0 to 1.0
CEM3394_FILTER_FREQENCY: frequency, in Hz
CEM3394_FINAL_GAIN: gain, in dB */
double cem3394_get_parameter(int chip, int input);
#endif /* __CEM3394_H__ */
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