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// license:BSD-3-Clause
// copyright-holders:Raphael Nabet
#ifndef __MM58274C_H__
#define __MM58274C_H__

/***************************************************************************
    MACROS
***************************************************************************/

class mm58274c_device : public device_t
{
public:
	mm58274c_device(const machine_config &mconfig, std::string tag, device_t *owner, UINT32 clock);
	~mm58274c_device() {}

	static void set_mode24(device_t &device, int mode) { downcast<mm58274c_device &>(device).m_mode24 = mode; }
	static void set_day1(device_t &device, int day) { downcast<mm58274c_device &>(device).m_day1 = day; }

	DECLARE_READ8_MEMBER(read);
	DECLARE_WRITE8_MEMBER(write);

	TIMER_CALLBACK_MEMBER(rtc_increment_cb);
	TIMER_CALLBACK_MEMBER(rtc_interrupt_cb);

protected:
	// device-level overrides
	virtual void device_start() override;
	virtual void device_reset() override;

private:
	// internal state

	// Initializion the clock chip:
	// m_day1 must be set to a value from 0 (sunday), 1 (monday)...
	// to 6 (saturday) and is needed to correctly retrieve the
	// day-of-week from the host system clock.
	int m_mode24;     /* 24/12 mode */
	int m_day1;       /* first day of week */

	attotime interrupt_period_table(int val);

	int m_status;     /* status register (*read* from address 0 = control register) */
	int m_control;    /* control register (*write* to address 0) */

	int m_clk_set;    /* clock setting register */
	int m_int_ctl;    /* interrupt control register */

	int m_wday;       /* day of the week (1-7 (1=day1 as set in init)) */
	int m_years1;     /* years (BCD: 0-99) */
	int m_years2;
	int m_months1;    /* months (BCD: 1-12) */
	int m_months2;
	int m_days1;      /* days (BCD: 1-31) */
	int m_days2;
	int m_hours1;     /* hours (BCD : 0-23) */
	int m_hours2;
	int m_minutes1;   /* minutes (BCD : 0-59) */
	int m_minutes2;
	int m_seconds1;   /* seconds (BCD : 0-59) */
	int m_seconds2;
	int m_tenths;     /* tenths of second (BCD : 0-9) */

	emu_timer *m_increment_rtc;
	emu_timer *m_interrupt_timer;
};

extern const device_type MM58274C;


/***************************************************************************
    DEVICE CONFIGURATION MACROS
***************************************************************************/

#define MCFG_MM58274C_MODE24(_mode) \
	mm58274c_device::set_mode24(*device, _mode);

#define MCFG_MM58274C_DAY1(_day) \
	mm58274c_device::set_day1(*device, _day);


#endif