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// license:BSD-3-Clause
// copyright-holders:Patrick Mackinlay
#ifndef MAME_MACHINE_DS1215_H
#define MAME_MACHINE_DS1215_H
#pragma once
#include "dirtc.h"
class ds1215_device_base
: public device_t
, public device_nvram_interface
, public device_rtc_interface
{
public:
auto ceo() { return m_ceo.bind(); }
bool ceo_r() { return !m_ceo_state; }
protected:
ds1215_device_base(machine_config const &mconfig, device_type type, char const *tag, device_t *owner, u32 clock);
// device_t implementation
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
// device_nvram_interface implementation
virtual bool nvram_read(util::read_stream &file) override;
virtual bool nvram_write(util::write_stream &file) override;
virtual void nvram_default() override;
// device_rtc_interface implementation
virtual bool rtc_feature_y2k() const override { return false; }
virtual bool rtc_feature_leap_year() const override { return true; }
virtual void rtc_clock_updated(int year, int month, int day, int day_of_week, int hour, int minute, int second) override;
u8 read_bit();
void write_bit(u8 data);
private:
void timer(s32 param);
void update_ceo();
devcb_write_line m_ceo;
emu_timer *m_timer;
// internal state
u8 m_mode;
u8 m_count;
u8 m_reg[8];
bool m_ceo_state;
};
class ds1215_device : public ds1215_device_base
{
public:
ds1215_device(machine_config const &mconfig, char const *tag, device_t *owner, u32 clock = 32'768);
~ds1215_device() {}
u8 read();
void write(u8 data);
};
class ds1216e_device : public ds1215_device_base
{
public:
ds1216e_device(machine_config const &mconfig, char const *tag, device_t *owner, u32 clock = 32'768);
~ds1216e_device() {}
u8 read(offs_t offset);
};
DECLARE_DEVICE_TYPE(DS1215, ds1215_device)
DECLARE_DEVICE_TYPE(DS1216E, ds1216e_device)
#endif // MAME_MACHINE_DS1215_H
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