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// license:BSD-3-Clause
// copyright-holders:R. Belmont
#ifndef MAME_BUS_MIDI_MIDI_H
#define MAME_BUS_MIDI_MIDI_H

#pragma once


#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) \
	downcast<midi_port_device &>(*device).set_rx_handler(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_t clock = 0);
	virtual ~midi_port_device();

	// static configuration helpers
	template <class Object> devcb_base &set_rx_handler(Object &&cb) { return m_rxd_handler.set_callback(std::forward<Object>(cb)); }
	auto rxd_handler() { return m_rxd_handler.bind(); }

	DECLARE_WRITE_LINE_MEMBER( write_txd );

	DECLARE_READ_LINE_MEMBER( rx_r ) { return m_rxd; }

protected:
	virtual void device_start() override;
	virtual void device_config_complete() override;

	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:
	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:
	device_midi_port_interface(const machine_config &mconfig, device_t &device);

	midi_port_device *m_port;
};

DECLARE_DEVICE_TYPE(MIDI_PORT, midi_port_device)

device_slot_interface &midiin_slot(device_slot_interface &device);
device_slot_interface &midiout_slot(device_slot_interface &device);

#endif // MAME_BUS_MIDI_MIDI_H