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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Wang PC-PM001 Winchester Disk Controller emulation
**********************************************************************/
#ifndef MAME_BUS_WANGPC_WDC_H
#define MAME_BUS_WANGPC_WDC_H
#pragma once
#include "wangpc.h"
#include "cpu/z80/z80.h"
#include "imagedev/harddriv.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_t clock);
// optional information overrides
virtual const tiny_rom_entry *device_rom_region() const override;
virtual machine_config_constructor device_mconfig_additions() const override;
// 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() override;
virtual void device_reset() override;
// device_wangpcbus_card_interface overrides
virtual uint16_t wangpcbus_mrdc_r(address_space &space, offs_t offset, uint16_t mem_mask) override;
virtual void wangpcbus_amwc_w(address_space &space, offs_t offset, uint16_t mem_mask, uint16_t data) override;
virtual uint16_t wangpcbus_iorc_r(address_space &space, offs_t offset, uint16_t mem_mask) override;
virtual void wangpcbus_aiowc_w(address_space &space, offs_t offset, uint16_t mem_mask, uint16_t data) override;
virtual uint8_t wangpcbus_dack_r(address_space &space, int line) override;
virtual void wangpcbus_dack_w(address_space &space, int line, uint8_t data) override;
virtual bool wangpcbus_have_dack(int line) override;
private:
inline void set_irq(int state);
required_device<cpu_device> m_maincpu;
required_device<z80ctc_device> m_ctc;
uint8_t m_status;
uint8_t m_option;
int m_irq;
};
// device type definition
DECLARE_DEVICE_TYPE(WANGPC_WDC, wangpc_wdc_device)
#endif // MAME_BUS_WANGPC_WDC_H
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