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// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
// Intel i82439hx northbridge (440hx)

#ifndef I82439HX_H
#define I82439HX_H

#include "pci.h"

#define MCFG_I82439HX_ADD(_tag, _cpu_tag, _ram_size)    \
	MCFG_PCI_HOST_ADD(_tag, I82439HX, 0x80861250, 0x03, 0x00000000) \
	downcast<i82439hx_host_device *>(device)->set_cpu_tag(_cpu_tag); \
	downcast<i82439hx_host_device *>(device)->set_ram_size(_ram_size);

class i82439hx_host_device : public pci_host_device {
public:
	i82439hx_host_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

	void set_cpu_tag(const char *tag);
	void set_ram_size(int ram_size);

	DECLARE_READ8_MEMBER (pcon_r);
	DECLARE_WRITE8_MEMBER(pcon_w);
	DECLARE_READ8_MEMBER (cc_r);
	DECLARE_WRITE8_MEMBER(cc_w);
	DECLARE_READ8_MEMBER (dramec_r);
	DECLARE_WRITE8_MEMBER(dramec_w);
	DECLARE_READ8_MEMBER (dramc_r);
	DECLARE_WRITE8_MEMBER(dramc_w);
	DECLARE_READ8_MEMBER (dramt_r);
	DECLARE_WRITE8_MEMBER(dramt_w);
	DECLARE_READ8_MEMBER (pam0_r);
	DECLARE_WRITE8_MEMBER(pam0_w);
	DECLARE_READ8_MEMBER (pam3_r);
	DECLARE_WRITE8_MEMBER(pam3_w);
	DECLARE_READ8_MEMBER (drb_r);
	DECLARE_WRITE8_MEMBER(drb_w);
	DECLARE_READ8_MEMBER (drt_r);
	DECLARE_WRITE8_MEMBER(drt_w);
	DECLARE_READ8_MEMBER (drat_r);
	DECLARE_WRITE8_MEMBER(drat_w);
	DECLARE_READ8_MEMBER (smram_r);
	DECLARE_WRITE8_MEMBER(smram_w);
	DECLARE_READ8_MEMBER (errcmd_r);
	DECLARE_WRITE8_MEMBER(errcmd_w);
	DECLARE_READ8_MEMBER (errsts_r);
	DECLARE_WRITE8_MEMBER(errsts_w);
	DECLARE_READ8_MEMBER (errsyn_r);

	virtual void reset_all_mappings() override;

	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 DECLARE_ADDRESS_MAP(config_map, 32) override;

protected:
	virtual void device_start() override;
	virtual void device_reset() override;

private:
	const char *cpu_tag;
	int ram_size;
	cpu_device *cpu;
	std::vector<uint32_t> ram;

	uint8_t pcon, cc, dramec, dramc, dramt;
	uint8_t pam[7], drb[8];
	uint8_t drt, drat, smram, errcmd, errsts, errsyn;
};

extern const device_type I82439HX;

#endif