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// license: BSD-3-Clause
// copyright-holders: Angelo Salese
#ifndef MAME_MACHINE_I82371EB_ISA_H
#define MAME_MACHINE_I82371EB_ISA_H
#pragma once
#include "machine/i82371sb.h"
#include "machine/mc146818.h"
class i82371eb_isa_device : public i82371sb_isa_device
{
public:
template <typename T>
i82371eb_isa_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, T &&cpu_tag, bool internal_rtc = false)
: i82371eb_isa_device(mconfig, tag, owner, clock)
{
set_cpu_tag(std::forward<T>(cpu_tag));
m_has_internal_rtc = internal_rtc;
}
auto a20m() { return m_a20m_callback.bind(); }
void a20gate_w(int state);
i82371eb_isa_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_add_mconfig(machine_config & config) override;
virtual void config_map(address_map &map) override ATTR_COLD;
virtual void map_extra(uint64_t memory_window_start, uint64_t memory_window_end, uint64_t memory_offset, address_space *memory_space,
uint64_t io_window_start, uint64_t io_window_end, uint64_t io_offset, address_space *io_space) override;
virtual void internal_io_map(address_map &map) override ATTR_COLD;
private:
required_device<mc146818_device> m_rtc;
devcb_write_line m_a20m_callback;
u8 m_serirqc;
u8 m_pdmacfg[2], m_pdma_ch[8];
u8 m_ddmabp[2];
u8 m_gencfg[4];
u8 m_rtccfg;
u8 pdmacfg_r(offs_t offset);
void pdmacfg_w(offs_t offset, u8 data);
bool m_has_internal_rtc;
u8 m_rtc_index;
template <unsigned E> u8 rtc_index_r(offs_t offset);
template <unsigned E> void rtc_index_w(offs_t offset, u8 data);
template <unsigned E> u8 rtc_data_r(offs_t offset);
template <unsigned E> void rtc_data_w(offs_t offset, u8 data);
u8 port92_r(offs_t offset);
void port92_w(offs_t offset, u8 data);
void fast_gatea20(int state);
int m_ext_gatea20, m_fast_gatea20;
u8 m_port92;
};
DECLARE_DEVICE_TYPE(I82371EB_ISA, i82371eb_isa_device)
#endif // MAME_MACHINE_I82371EB_ISA_H
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