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-rw-r--r--trunk/src/emu/sound/cem3394.h50
1 files changed, 50 insertions, 0 deletions
diff --git a/trunk/src/emu/sound/cem3394.h b/trunk/src/emu/sound/cem3394.h
new file mode 100644
index 00000000000..450e80ef670
--- /dev/null
+++ b/trunk/src/emu/sound/cem3394.h
@@ -0,0 +1,50 @@
+#pragma once
+
+#ifndef __CEM3394_H__
+#define __CEM3394_H__
+
+#include "devlegcy.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)(device_t *, 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(device_t *device, 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(device_t *device, int input);
+
+DECLARE_LEGACY_SOUND_DEVICE(CEM3394, cem3394);
+
+#endif /* __CEM3394_H__ */