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/**********************************************************************

    Luxor 55-21046 "fast" floppy disk controller emulation

    Copyright MESS Team.
    Visit http://mamedev.org for licensing and usage restrictions.

*********************************************************************/

#pragma once

#ifndef __LUXOR_55_21046__
#define __LUXOR_55_21046__


#include "emu.h"
#include "cpu/z80/z80.h"
#include "cpu/z80/z80daisy.h"
#include "machine/abcbus.h"
#include "machine/wd_fdc.h"
#include "machine/z80dma.h"



//**************************************************************************
//  MACROS / CONSTANTS
//**************************************************************************

#define ADDRESS_ABC832          44
#define ADDRESS_ABC830          45
#define ADDRESS_ABC838          46


#define DRIVE_TEAC_FD55F        0x01
#define DRIVE_BASF_6138         0x02
#define DRIVE_MICROPOLIS_1015F  0x03
#define DRIVE_BASF_6118         0x04
#define DRIVE_MICROPOLIS_1115F  0x05
#define DRIVE_BASF_6106_08      0x08
#define DRIVE_MPI_51            0x09
#define DRIVE_BASF_6105         0x0e
#define DRIVE_BASF_6106         0x0f



//**************************************************************************
//  TYPE DEFINITIONS
//**************************************************************************

// ======================> luxor_55_21046_device

class luxor_55_21046_device :  public device_t,
								public device_abcbus_card_interface
{
public:
	// construction/destruction
	luxor_55_21046_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);

	// optional information overrides
	virtual const rom_entry *device_rom_region() const;
	virtual machine_config_constructor device_mconfig_additions() const;
	virtual ioport_constructor device_input_ports() const;

	// not really public
	DECLARE_READ8_MEMBER( _3d_r );
	DECLARE_WRITE8_MEMBER( _4d_w );
	DECLARE_WRITE8_MEMBER( _4b_w );
	DECLARE_WRITE8_MEMBER( _9b_w );
	DECLARE_WRITE8_MEMBER( _8a_w );
	DECLARE_READ8_MEMBER( _9a_r );

	DECLARE_WRITE_LINE_MEMBER( dma_int_w );

	void fdc_intrq_w(bool state);
	void fdc_drq_w(bool state);

protected:
	// device-level overrides
	virtual void device_config_complete() { m_shortname = "lux21046"; }
	virtual void device_start();
	virtual void device_reset();

	// device_abcbus_interface overrides
	virtual void abcbus_cs(UINT8 data);
	virtual void abcbus_rst(int state);
	virtual UINT8 abcbus_inp();
	virtual void abcbus_utp(UINT8 data);
	virtual UINT8 abcbus_stat();
	virtual void abcbus_c1(UINT8 data);
	virtual void abcbus_c3(UINT8 data);

private:
	required_device<cpu_device> m_maincpu;
	required_device<z80dma_device> m_dma;
	required_device<fd1793_t> m_fdc;
	required_device<floppy_connector> m_floppy0;
	required_device<floppy_connector> m_floppy1;
	floppy_image_device *m_floppy;
	required_ioport m_sw1;
	required_ioport m_sw2;
	required_ioport m_sw3;

	bool m_cs;                  // card selected
	UINT8 m_status;             // ABC BUS status
	UINT8 m_data_in;            // ABC BUS data in
	UINT8 m_data_out;           // ABC BUS data out
	bool m_fdc_irq;             // FDC interrupt
	int m_dma_irq;              // DMA interrupt
	int m_busy;                 // busy bit
	int m_force_busy;           // force busy bit
};


// device type definition
extern const device_type LUXOR_55_21046;


// default input ports
extern const input_device_default DEVICE_INPUT_DEFAULTS_NAME( abc830_fast )[];
extern const input_device_default DEVICE_INPUT_DEFAULTS_NAME( abc832_fast )[];
extern const input_device_default DEVICE_INPUT_DEFAULTS_NAME( abc834_fast )[];
extern const input_device_default DEVICE_INPUT_DEFAULTS_NAME( abc838_fast )[];
extern const input_device_default DEVICE_INPUT_DEFAULTS_NAME( abc850_fast )[];



#endif