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// license:GPL-2.0+
// copyright-holders:Dirk Best
/***************************************************************************
VTech Laser/VZ Floppy Controller Cartridge
Laser DD 20
Dick Smith Electronics X-7304
***************************************************************************/
#pragma once
#ifndef __VTECH_MEMEXP_FLOPPY_H__
#define __VTECH_MEMEXP_FLOPPY_H__
#include "emu.h"
#include "memexp.h"
#include "imagedev/floppy.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> floppy_controller_device
class floppy_controller_device : public device_t, public device_memexp_interface
{
public:
// construction/destruction
floppy_controller_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
DECLARE_ADDRESS_MAP(map, 8);
DECLARE_WRITE8_MEMBER(latch_w);
DECLARE_READ8_MEMBER(shifter_r);
DECLARE_READ8_MEMBER(rd_r);
DECLARE_READ8_MEMBER(wpt_r);
DECLARE_FLOPPY_FORMATS( floppy_formats );
protected:
virtual const rom_entry *device_rom_region() const;
virtual machine_config_constructor device_mconfig_additions() const;
virtual void device_start();
virtual void device_reset();
required_device<memexp_slot_device> m_memexp;
required_device<floppy_connector> m_floppy0, m_floppy1;
floppy_image_device *m_floppy;
UINT8 m_latch, m_shifter;
bool m_latching_inverter;
int m_current_cyl;
attotime m_last_latching_inverter_update_time;
attotime m_write_start_time, m_write_buffer[32];
int m_write_position;
void index_callback(floppy_image_device *floppy, int state);
void update_latching_inverter();
void flush_writes(bool keep_margin = false);
};
// device type definition
extern const device_type FLOPPY_CONTROLLER;
#endif // __VTECH_MEMEXP_FLOPPY_H__
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