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// license:GPL-2.0+
// copyright-holders:Dirk Best
/**********************************************************************
EPSON TF-20
Dual 5.25" floppy drive with HX-20 factory option
**********************************************************************/
#ifndef MAME_BUS_EPSON_SIO_TF20_H
#define MAME_BUS_EPSON_SIO_TF20_H
#pragma once
#include "epson_sio.h"
#include "cpu/z80/z80.h"
#include "imagedev/floppy.h"
#include "machine/ram.h"
#include "machine/upd765.h"
#include "machine/z80sio.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class epson_tf20_device : public device_t,
public device_epson_sio_interface
{
public:
// construction/destruction
epson_tf20_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// device-level overrides
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
// optional information overrides
virtual const tiny_rom_entry *device_rom_region() const override ATTR_COLD;
virtual void device_add_mconfig(machine_config &config) override ATTR_COLD;
virtual ioport_constructor device_input_ports() const override ATTR_COLD;
// device_epson_sio_interface overrides
virtual void tx_w(int level) override;
virtual void pout_w(int level) override;
private:
IRQ_CALLBACK_MEMBER( irq_callback );
void txda_w(int state);
void dtra_w(int state);
// from sio output
void rxc_w(int state);
void pinc_w(int state);
uint8_t rom_disable_r();
uint8_t upd765_tc_r();
void fdc_control_w(uint8_t data);
TIMER_CALLBACK_MEMBER( serial_tick );
TIMER_CALLBACK_MEMBER( tc_tick );
void cpu_io(address_map &map) ATTR_COLD;
void cpu_mem(address_map &map) ATTR_COLD;
required_device<cpu_device> m_cpu;
required_device<ram_device> m_ram;
required_device<upd765a_device> m_fdc;
required_device<upd7201_device> m_mpsc;
required_device<epson_sio_device> m_sio_output;
required_device_array<floppy_connector, 2> m_fd;
required_ioport m_tf20_dip;
emu_timer *m_timer_serial;
emu_timer *m_timer_tc;
int m_rxc;
int m_txda;
int m_dtra;
int m_pinc;
epson_sio_device *m_sio_input;
static constexpr XTAL XTAL_CR1 = XTAL(8'000'000);
static constexpr XTAL XTAL_CR2 = XTAL(4'915'200);
};
// device type definition
DECLARE_DEVICE_TYPE(EPSON_TF20, epson_tf20_device)
#endif // MAME_BUS_EPSON_SIO_TF20_H
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