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// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
#ifndef MAME_MACHINE_NEXTMO_H
#define MAME_MACHINE_NEXTMO_H

#pragma once

#define MCFG_NEXTMO_IRQ_CALLBACK(_write) \
	devcb = &downcast<nextmo_device &>(*device).set_irq_wr_callback(DEVCB_##_write);

#define MCFG_NEXTMO_DRQ_CALLBACK(_write) \
	devcb = &downcast<nextmo_device &>(*device).set_drq_wr_callback(DEVCB_##_write);

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

	template <class Object> devcb_base &set_irq_wr_callback(Object &&cb) { return irq_cb.set_callback(std::forward<Object>(cb)); }
	template <class Object> devcb_base &set_drq_wr_callback(Object &&cb) { return drq_cb.set_callback(std::forward<Object>(cb)); }

	void map(address_map &map);

	DECLARE_READ8_MEMBER(r4_r);
	DECLARE_WRITE8_MEMBER(r4_w);
	DECLARE_READ8_MEMBER(r5_r);
	DECLARE_WRITE8_MEMBER(r5_w);
	DECLARE_READ8_MEMBER(r6_r);
	DECLARE_WRITE8_MEMBER(r6_w);
	DECLARE_READ8_MEMBER(r7_r);
	DECLARE_WRITE8_MEMBER(r7_w);
	DECLARE_READ8_MEMBER(r8_r);
	DECLARE_WRITE8_MEMBER(r8_w);
	DECLARE_READ8_MEMBER(r9_r);
	DECLARE_WRITE8_MEMBER(r9_w);
	DECLARE_READ8_MEMBER(ra_r);
	DECLARE_WRITE8_MEMBER(ra_w);
	DECLARE_READ8_MEMBER(rb_r);
	DECLARE_WRITE8_MEMBER(rb_w);
	DECLARE_READ8_MEMBER(r10_r);
	DECLARE_WRITE8_MEMBER(r10_w);

	uint8_t dma_r();
	void dma_w(uint8_t data);

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

private:
	uint8_t sector[0x510];
	uint8_t r4, r5, r6, r7;
	devcb_write_line irq_cb, drq_cb;
	int sector_pos;

	void check_dma_end();
	void check_ecc();
	void compute_ecc();
};

DECLARE_DEVICE_TYPE(NEXTMO, nextmo_device)

#endif // MAME_MACHINE_NEXTMO_H