// license:BSD-3-Clause
// copyright-holders:Miodrag Milanovic, Wilbert Pol
/**********************************************************************
ISA 8 bit Floppy Disk Controller
**********************************************************************/
#ifndef MAME_BUS_ISA_FDC_H
#define MAME_BUS_ISA_FDC_H
#pragma once
#include "isa.h"
#include "imagedev/floppy.h"
#include "machine/busmouse.h"
#include "machine/upd765.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> isa8_fdc_device
class isa8_fdc_device :
public device_t,
public device_isa8_card_interface
{
public:
DECLARE_WRITE_LINE_MEMBER( irq_w );
DECLARE_WRITE_LINE_MEMBER( drq_w );
DECLARE_FLOPPY_FORMATS( floppy_formats );
protected:
// construction/destruction
isa8_fdc_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// device-level overrides
virtual void device_reset() override;
virtual uint8_t dack_r(int line) override;
virtual void dack_w(int line, uint8_t data) override;
virtual void dack_line_w(int line, int state) override;
virtual void eop_w(int state) override;
required_device<upd765_family_device> m_fdc;
};
class isa8_upd765_fdc_device : public isa8_fdc_device
{
protected:
// construction/destruction
isa8_upd765_fdc_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// device-level overrides
virtual void device_start() override;
uint8_t dor_r();
void dor_w(uint8_t data);
uint8_t dir_r();
void ccr_w(uint8_t data);
DECLARE_WRITE_LINE_MEMBER( fdc_irq_w );
DECLARE_WRITE_LINE_MEMBER( fdc_drq_w );
private:
bool irq, drq, fdc_drq, fdc_irq;
uint8_t dor;
floppy_image_device *floppy[4];
void check_irq();
void check_drq();
};
class isa8_fdc_xt_device : public isa8_upd765_fdc_device {
public:
isa8_fdc_xt_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
isa8_fdc_xt_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// device-level overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual void device_start() override;
void map(address_map &map);
void dor_fifo_w(uint8_t data);
};
class isa8_fdc_at_device : public isa8_upd765_fdc_device {
public:
isa8_fdc_at_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// device-level overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual void device_start() override;
void map(address_map &map);
};
class isa8_fdc_smc_device : public isa8_fdc_device {
public:
isa8_fdc_smc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// device-level overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual void device_start() override;
};
class isa8_fdc_ps2_device : public isa8_fdc_device {
public:
isa8_fdc_ps2_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// device-level overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual void device_start() override;
};
class isa8_fdc_superio_device : public isa8_fdc_device {
public:
isa8_fdc_superio_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// device-level overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual void device_start() override;
};
class isa8_ec1841_0003_device : public isa8_fdc_xt_device {
public:
isa8_ec1841_0003_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
virtual void device_start() override;
virtual void device_add_mconfig(machine_config &config) override;
DECLARE_WRITE_LINE_MEMBER( aux_irq_w );
required_device<bus_mouse_device> m_bus_mouse;
};
// device type definition
DECLARE_DEVICE_TYPE(ISA8_FDC_XT, isa8_fdc_xt_device)
DECLARE_DEVICE_TYPE(ISA8_FDC_AT, isa8_fdc_at_device)
DECLARE_DEVICE_TYPE(ISA8_FDC_SMC, isa8_fdc_smc_device)
DECLARE_DEVICE_TYPE(ISA8_FDC_PS2, isa8_fdc_ps2_device)
DECLARE_DEVICE_TYPE(ISA8_FDC_SUPERIO, isa8_fdc_superio_device)
DECLARE_DEVICE_TYPE(ISA8_EC1841_0003, isa8_ec1841_0003_device)
#endif // MAME_BUS_ISA_FDC_H