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// license:BSD-3-Clause
// copyright-holders:R. Belmont
/**********************************************************************

    mm58167.h - National Semiconductor MM58167 real-time clock emulation

**********************************************************************/

#ifndef MAME_MACHINE_MM58167_H
#define MAME_MACHINE_MM58167_H

#pragma once

#include "dirtc.h"


//**************************************************************************
//  TYPE DEFINITIONS
//**************************************************************************

// ======================> mm58167_device

class mm58167_device :  public device_t,
						public device_rtc_interface
{
public:
	// construction/destruction
	mm58167_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

	uint8_t read(offs_t offset);
	void write(offs_t offset, uint8_t data);

	auto irq() { return m_irq_w.bind(); }

	devcb_write_line m_irq_w;

protected:
	// device-level overrides
	virtual void device_start() override;
	virtual void device_reset() override;
	virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;

	// device_rtc_interface overrides
	virtual void rtc_clock_updated(int year, int month, int day, int day_of_week, int hour, int minute, int second) override;
	virtual bool rtc_feature_leap_year() const override { return true; }

	void set_irq(int bit);
	void update_rtc();

private:
	int m_regs[32];
	int m_milliseconds;
	bool m_comparator_state;

	// timers
	emu_timer *m_clock_timer;
};

// device type definition
DECLARE_DEVICE_TYPE(MM58167, mm58167_device)

#endif // MAME_MACHINE_MM58167_H