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-rw-r--r--src/devices/bus/midi/midi.h65
1 files changed, 65 insertions, 0 deletions
diff --git a/src/devices/bus/midi/midi.h b/src/devices/bus/midi/midi.h
new file mode 100644
index 00000000000..2013e625f91
--- /dev/null
+++ b/src/devices/bus/midi/midi.h
@@ -0,0 +1,65 @@
+// license:BSD-3-Clause
+// copyright-holders:R. Belmont
+#ifndef __BUS_MIDI_H__
+#define __BUS_MIDI_H__
+
+#include "emu.h"
+
+#define MCFG_MIDI_PORT_ADD(_tag, _slot_intf, _def_slot) \
+ MCFG_DEVICE_ADD(_tag, MIDI_PORT, 0) \
+ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false)
+
+#define MCFG_MIDI_RX_HANDLER(_devcb) \
+ devcb = &midi_port_device::set_rx_handler(*device, DEVCB_##_devcb);
+
+class device_midi_port_interface;
+
+class midi_port_device : public device_t,
+ public device_slot_interface
+{
+ friend class device_midi_port_interface;
+
+public:
+ midi_port_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+ virtual ~midi_port_device();
+
+ // static configuration helpers
+ template<class _Object> static devcb_base &set_rx_handler(device_t &device, _Object object) { return downcast<midi_port_device &>(device).m_rxd_handler.set_callback(object); }
+
+ DECLARE_WRITE_LINE_MEMBER( write_txd );
+
+ DECLARE_READ_LINE_MEMBER( rx_r ) { return m_rxd; }
+
+protected:
+ virtual void device_start();
+ virtual void device_config_complete();
+
+ int m_rxd;
+
+ devcb_write_line m_rxd_handler;
+
+private:
+ device_midi_port_interface *m_dev;
+};
+
+class device_midi_port_interface : public device_slot_card_interface
+{
+ friend class midi_port_device;
+
+public:
+ device_midi_port_interface(const machine_config &mconfig, device_t &device);
+ virtual ~device_midi_port_interface();
+
+ virtual DECLARE_WRITE_LINE_MEMBER( input_txd ) {}
+ DECLARE_WRITE_LINE_MEMBER( output_rxd ) { m_port->m_rxd = state; m_port->m_rxd_handler(state); }
+
+protected:
+ midi_port_device *m_port;
+};
+
+extern const device_type MIDI_PORT;
+
+SLOT_INTERFACE_EXTERN(midiin_slot);
+SLOT_INTERFACE_EXTERN(midiout_slot);
+
+#endif