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-rw-r--r--src/devices/bus/a2bus/a2midi.h55
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diff --git a/src/devices/bus/a2bus/a2midi.h b/src/devices/bus/a2bus/a2midi.h
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+++ b/src/devices/bus/a2bus/a2midi.h
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+// license:BSD-3-Clause
+// copyright-holders:R. Belmont
+/*********************************************************************
+
+ a2midi.h
+
+ Apple II 6850 MIDI card, as made by Passport, Yamaha, and others.
+
+*********************************************************************/
+
+#ifndef __A2BUS_MIDI__
+#define __A2BUS_MIDI__
+
+#include "a2bus.h"
+#include "machine/6840ptm.h"
+#include "machine/6850acia.h"
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+class a2bus_midi_device:
+ public device_t,
+ public device_a2bus_card_interface
+{
+public:
+ // construction/destruction
+ a2bus_midi_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+ a2bus_midi_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
+
+ // optional information overrides
+ virtual machine_config_constructor device_mconfig_additions() const;
+
+ DECLARE_WRITE_LINE_MEMBER( acia_irq_w );
+ DECLARE_WRITE_LINE_MEMBER( ptm_irq_w );
+ DECLARE_WRITE_LINE_MEMBER( write_acia_clock );
+
+protected:
+ virtual void device_start();
+ virtual void device_reset();
+
+ virtual UINT8 read_c0nx(address_space &space, UINT8 offset);
+ virtual void write_c0nx(address_space &space, UINT8 offset, UINT8 data);
+
+ required_device<ptm6840_device> m_ptm;
+ required_device<acia6850_device> m_acia;
+
+private:
+ bool m_acia_irq, m_ptm_irq;
+};
+
+// device type definition
+extern const device_type A2BUS_MIDI;
+
+#endif /* __A2BUS_MIDI__ */