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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Luxor ABC-55/77 keyboard emulation
*********************************************************************/
#ifndef MAME_BUS_ABCKB_ABC77_H
#define MAME_BUS_ABCKB_ABC77_H
#pragma once
#include "abckb.h"
#include "cpu/mcs48/mcs48.h"
#include "machine/watchdog.h"
#include "sound/discrete.h"
#include "sound/spkrdev.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> abc77_device
class abc77_device : public device_t, public abc_keyboard_interface
{
public:
// construction/destruction
abc77_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
DECLARE_INPUT_CHANGED_MEMBER( keyboard_reset );
protected:
abc77_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, const XTAL &clock);
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// optional information overrides
virtual const tiny_rom_entry *device_rom_region() const override;
virtual void device_add_mconfig(machine_config &config) override;
virtual ioport_constructor device_input_ports() const override;
// abc_keyboard_interface overrides
virtual void txd_w(int state) override;
private:
void serial_output(int state);
void key_down(int state);
TIMER_CALLBACK_MEMBER(serial_clock);
TIMER_CALLBACK_MEMBER(reset_tick);
required_device<i8035_device> m_maincpu;
required_device<watchdog_timer_device> m_watchdog;
required_device<discrete_sound_device> m_discrete;
required_ioport_array<12> m_x;
required_ioport m_dsw;
int m_txd; // transmit data
int m_keylatch; // keyboard row latch
int m_keydown; // key down
int m_clock; // transmit clock
int m_hys; // hysteresis
int m_stb; // strobe
uint8_t m_j3;
// timers
emu_timer *m_serial_timer;
emu_timer *m_reset_timer;
uint8_t p1_r();
void p2_w(uint8_t data);
DECLARE_READ_LINE_MEMBER( t1_r );
DECLARE_WRITE_LINE_MEMBER( prog_w );
void j3_w(uint8_t data);
void abc77_io(address_map &map);
void abc77_map(address_map &map);
};
class abc55_device : public abc77_device
{
public:
// construction/destruction
abc55_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
// optional information overrides
virtual ioport_constructor device_input_ports() const override;
};
// device type definition
DECLARE_DEVICE_TYPE(ABC77, abc77_device)
DECLARE_DEVICE_TYPE(ABC55, abc55_device)
#endif // MAME_BUS_ABCKB_ABC77_H
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