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/**********************************************************************
Wang PC-PM001 Winchester Disk Controller emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************/
#pragma once
#ifndef __WANGPC_WDC__
#define __WANGPC_WDC__
#include "emu.h"
#include "cpu/z80/z80.h"
#include "imagedev/harddriv.h"
#include "machine/wangpcbus.h"
#include "machine/z80ctc.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> wangpc_wdc_device
class wangpc_wdc_device : public device_t,
public device_wangpcbus_card_interface
{
public:
// construction/destruction
wangpc_wdc_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;
// not really public
DECLARE_READ8_MEMBER( port_r );
DECLARE_WRITE8_MEMBER( status_w );
DECLARE_READ8_MEMBER( ctc_ch0_r );
DECLARE_WRITE8_MEMBER( ctc_ch0_w );
DECLARE_READ8_MEMBER( ctc_ch1_r );
DECLARE_WRITE8_MEMBER( ctc_ch1_w );
DECLARE_READ8_MEMBER( ctc_ch2_r );
DECLARE_WRITE8_MEMBER( ctc_ch2_w );
DECLARE_READ8_MEMBER( ctc_ch3_r );
DECLARE_WRITE8_MEMBER( ctc_ch3_w );
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
// device_wangpcbus_card_interface overrides
virtual UINT16 wangpcbus_mrdc_r(address_space &space, offs_t offset, UINT16 mem_mask);
virtual void wangpcbus_amwc_w(address_space &space, offs_t offset, UINT16 mem_mask, UINT16 data);
virtual UINT16 wangpcbus_iorc_r(address_space &space, offs_t offset, UINT16 mem_mask);
virtual void wangpcbus_aiowc_w(address_space &space, offs_t offset, UINT16 mem_mask, UINT16 data);
virtual UINT8 wangpcbus_dack_r(address_space &space, int line);
virtual void wangpcbus_dack_w(address_space &space, int line, UINT8 data);
virtual bool wangpcbus_have_dack(int line);
private:
inline void set_irq(int state);
required_device<cpu_device> m_maincpu;
required_device<z80ctc_device> m_ctc;
UINT8 m_status;
UINT8 m_option;
int m_irq;
};
// device type definition
extern const device_type WANGPC_WDC;
#endif
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