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// license:BSD-3-Clause
// copyright-holders:Aaron Giles
#ifndef MAME_AUDIO_NAMCO52_H
#define MAME_AUDIO_NAMCO52_H

#include "sound/discrete.h"
#include "cpu/mb88xx/mb88xx.h"

#define MCFG_NAMCO_52XX_ADD(_tag, _clock) \
	MCFG_DEVICE_ADD(_tag, NAMCO_52XX, _clock)

#define MCFG_NAMCO_52XX_DISCRETE(_tag) \
	downcast<namco_52xx_device &>(*device).set_discrete(_tag);

#define MCFG_NAMCO_52XX_BASENODE(_node) \
	downcast<namco_52xx_device &>(*device).set_basenote(_node);

#define MCFG_NAMCO_52XX_EXT_CLOCK(_clock) \
	downcast<namco_52xx_device &>(*device).set_extclock(_clock);

#define MCFG_NAMCO_52XX_ROMREAD_CB(_devcb) \
	devcb = &downcast<namco_52xx_device &>(*device).set_romread_callback(DEVCB_##_devcb);

#define MCFG_NAMCO_52XX_SI_CB(_devcb) \
	devcb = &downcast<namco_52xx_device &>(*device).set_si_callback(DEVCB_##_devcb);


class namco_52xx_device : public device_t
{
public:
	namco_52xx_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

	void set_discrete(const char *tag) { m_discrete.set_tag(tag); }
	void set_basenote(int node) { m_basenode = node; }
	void set_extclock(attoseconds_t clk) { m_extclock = clk; }
	template <class Object> devcb_base &set_romread_callback(Object &&cb) { return m_romread.set_callback(std::forward<Object>(cb)); }
	template <class Object> devcb_base &set_si_callback(Object &&cb) { return m_si.set_callback(std::forward<Object>(cb)); }

	DECLARE_WRITE8_MEMBER(write);

	DECLARE_READ8_MEMBER( K_r );
	DECLARE_READ_LINE_MEMBER( SI_r );
	DECLARE_READ8_MEMBER( R0_r );
	DECLARE_READ8_MEMBER( R1_r );
	DECLARE_WRITE8_MEMBER( P_w );
	DECLARE_WRITE8_MEMBER( R2_w );
	DECLARE_WRITE8_MEMBER( R3_w );
	DECLARE_WRITE8_MEMBER( O_w );

protected:
	// device-level overrides
	virtual void device_start() override;
	virtual const tiny_rom_entry *device_rom_region() const override;
	virtual void device_add_mconfig(machine_config &config) override;

	TIMER_CALLBACK_MEMBER( latch_callback );
	TIMER_CALLBACK_MEMBER( irq_clear );
	TIMER_CALLBACK_MEMBER( external_clock_pulse );
private:
	// internal state
	required_device<mb88_cpu_device> m_cpu;
	required_device<discrete_device> m_discrete;

	int m_basenode;
	attoseconds_t m_extclock;
	emu_timer *m_extclock_pulse_timer;
	devcb_read8 m_romread;
	devcb_read8 m_si;

	uint8_t m_latched_cmd;
	uint32_t m_address;
};

DECLARE_DEVICE_TYPE(NAMCO_52XX, namco_52xx_device)



/* discrete nodes */
#define NAMCO_52XX_P_DATA(base)     (base)


#endif  // MAME_AUDIO_NAMCO52_H