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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Luxor 4105 SASI hard disk controller emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
*********************************************************************/
#pragma once
#ifndef __LUXOR_4105__
#define __LUXOR_4105__
#include "emu.h"
#include "abcbus.h"
#include "machine/scsicb.h"
//**************************************************************************
// MACROS / CONSTANTS
//**************************************************************************
#define LUXOR_4105_TAG "luxor_4105"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> luxor_4105_device
class luxor_4105_device : public device_t,
public device_abcbus_card_interface
{
public:
// construction/destruction
luxor_4105_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// optional information overrides
virtual machine_config_constructor device_mconfig_additions() const;
virtual ioport_constructor device_input_ports() const;
// not really public
DECLARE_WRITE_LINE_MEMBER( sasi_bsy_w );
DECLARE_WRITE_LINE_MEMBER( sasi_io_w );
DECLARE_WRITE_LINE_MEMBER( sasi_req_w );
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
// device_abcbus_interface overrides
virtual void abcbus_cs(UINT8 data);
virtual int abcbus_csb();
virtual UINT8 abcbus_inp();
virtual void abcbus_out(UINT8 data);
virtual UINT8 abcbus_stat();
virtual void abcbus_c1(UINT8 data);
virtual void abcbus_c3(UINT8 data);
virtual void abcbus_c4(UINT8 data);
private:
inline void update_trrq_int();
required_device<scsicb_device> m_sasibus;
required_ioport m_1e;
required_ioport m_5e;
int m_cs;
UINT8 m_data;
UINT8 m_dma;
};
// device type definition
extern const device_type LUXOR_4105;
#endif
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