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// license:BSD-3-Clause
// copyright-holders:Michael Zapf
/****************************************************************************
Hexbus floppy disk drive
HX5102
See hx5102.cpp for documentation
Michael Zapf
June 2017
*****************************************************************************/
#ifndef MAME_BUS_HEXBUS_HX5102_H
#define MAME_BUS_HEXBUS_HX5102_H
#pragma once
#include "hexbus.h"
#include "cpu/tms9900/tms9995.h"
#include "machine/upd765.h"
#include "machine/7474.h"
#include "machine/74123.h"
#include "machine/74259.h"
#include "machine/rescap.h"
#include "machine/ram.h"
#include "imagedev/floppy.h"
#include "tp0370.h"
namespace bus { namespace hexbus {
class hx5102_device : public hexbus_chained_device
{
public:
hx5102_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
virtual const tiny_rom_entry *device_rom_region() const override;
virtual void device_add_mconfig(machine_config &config) override;
ioport_constructor device_input_ports() const override;
void crumap(address_map &map);
void memmap(address_map &map);
void external_operation(offs_t offset, uint8_t data);
DECLARE_WRITE_LINE_MEMBER( clock_out );
DECLARE_WRITE_LINE_MEMBER( board_ready );
DECLARE_WRITE_LINE_MEMBER( board_reset );
DECLARE_FLOPPY_FORMATS( floppy_formats );
void device_start() override;
void device_reset() override;
virtual void hexbus_value_changed(uint8_t data) override;
private:
required_device<tms9995_device> m_flopcpu;
line_state m_ready_old;
uint8_t read(offs_t offset);
void write(offs_t offset, uint8_t data);
DECLARE_WRITE_LINE_MEMBER(fdc_irq_w);
DECLARE_WRITE_LINE_MEMBER(fdc_drq_w);
DECLARE_WRITE_LINE_MEMBER(motor_w);
DECLARE_WRITE_LINE_MEMBER(mspeed_w);
uint8_t fdc_read(offs_t offset);
void fdc_write(offs_t offset, uint8_t data);
uint8_t ibc_read(offs_t offset);
void ibc_write(offs_t offset, uint8_t data);
void hexbus_out(uint8_t data);
DECLARE_WRITE_LINE_MEMBER(hsklatch_out);
uint8_t cruread(offs_t offset);
DECLARE_WRITE_LINE_MEMBER(nocomp_w);
DECLARE_WRITE_LINE_MEMBER(diren_w);
DECLARE_WRITE_LINE_MEMBER(dacken_w);
DECLARE_WRITE_LINE_MEMBER(stepen_w);
DECLARE_WRITE_LINE_MEMBER(ds1_w);
DECLARE_WRITE_LINE_MEMBER(ds2_w);
DECLARE_WRITE_LINE_MEMBER(ds3_w);
DECLARE_WRITE_LINE_MEMBER(ds4_w);
DECLARE_WRITE_LINE_MEMBER(aux_motor_w);
DECLARE_WRITE_LINE_MEMBER(wait_w);
void update_drive_select();
// Operate the floppy motors
bool m_motor_on;
bool m_mspeed_on;
bool m_pending_int;
bool m_pending_drq;
bool m_dcs;
bool m_dack;
bool m_dacken;
bool m_wait;
void update_readyff_input();
// Link to the attached floppy drives
floppy_image_device* m_floppy[2];
floppy_image_device* m_current_floppy;
int m_floppy_select, m_floppy_select_last;
required_device<ibc_device> m_hexbus_ctrl;
required_device<i8272a_device> m_floppy_ctrl;
required_device_array<ls259_device, 2> m_crulatch;
required_device<ttl74123_device> m_motormf;
required_device<ttl74123_device> m_speedmf;
required_device<ttl7474_device> m_readyff;
// RAM
required_device<ram_device> m_ram1;
required_device<ram_device> m_ram2;
// System ROM
uint8_t* m_rom1;
uint8_t* m_rom2;
};
} } // end namespace bus::hexbus
DECLARE_DEVICE_TYPE_NS(HX5102, bus::hexbus, hx5102_device)
#endif // MAME_BUS_HEXBUS_HX5102_H
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