1 files changed, 43 insertions, 0 deletions
diff --git a/plugins/ao/eng_ssf/scsp.h b/plugins/ao/eng_ssf/scsp.h
new file mode 100644
index 00000000..345c78b8
--- /dev/null
+++ b/plugins/ao/eng_ssf/scsp.h
@@ -0,0 +1,43 @@
+/*
+
+	SCSP (YMF292-F) header
+*/
+
+#ifndef _SCSP_H_
+#define _SCSP_H_
+
+#define MAX_SCSP	(2)
+
+#define COMBINE_DATA(varptr)	(*(varptr) = (*(varptr) & mem_mask) | (data & ~mem_mask))
+
+// convert AO types
+typedef int8 data8_t;
+typedef int16 data16_t;
+typedef int32 data32_t;
+typedef int offs_t;
+
+struct SCSPinterface 
+{
+	int num;
+	void *region[MAX_SCSP];
+	int mixing_level[MAX_SCSP];			/* volume */
+	void (*irq_callback[MAX_SCSP])(int state);	/* irq callback */
+};
+
+void *scsp_start(const void *config);
+void SCSP_Update(void *param, INT16 **inputs, INT16 **buf, int samples);
+
+#define READ16_HANDLER(name)	data16_t name(offs_t offset, data16_t mem_mask)
+#define WRITE16_HANDLER(name)	void     name(offs_t offset, data16_t data, data16_t mem_mask)
+
+// SCSP register access
+READ16_HANDLER( SCSP_0_r );
+WRITE16_HANDLER( SCSP_0_w );
+READ16_HANDLER( SCSP_1_r );
+WRITE16_HANDLER( SCSP_1_w );
+
+// MIDI I/O access (used for comms on Model 2/3)
+WRITE16_HANDLER( SCSP_MidiIn );
+READ16_HANDLER( SCSP_MidiOutR );
+
+#endif