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// license:LGPL-2.1+
// copyright-holders:Angelo Salese, Sandro Ronco
/**********************************************************************
Acorn Archimedes keyboard
*********************************************************************/
#ifndef MAME_MACHINE_ARCHIMEDES_KEYB_H
#define MAME_MACHINE_ARCHIMEDES_KEYB_H
#pragma once
#include "cpu/mcs51/mcs51.h"
#include "diserial.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> archimedes_keyboard_device
class archimedes_keyboard_device : public device_t, public device_serial_interface
{
public:
// construction/destruction
archimedes_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock = XTAL());
auto kout() { return m_kout.bind(); }
DECLARE_WRITE_LINE_MEMBER(kin_w) { rx_w(state); }
protected:
// device-level overrides
virtual void device_resolve_objects() override;
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;
// device_serial_interface overrides
virtual void tra_callback() override;
virtual void tra_complete() override;
virtual void rcv_complete() override;
TIMER_CALLBACK_MEMBER(update_mouse);
private:
void tx_w(uint8_t data);
uint8_t mouse_r();
void leds_w(uint8_t data);
required_device<mcs51_cpu_device> m_mcu;
devcb_write_line m_kout;
required_ioport_array<16> m_keyboard;
required_ioport_array<3> m_mouse;
output_finder<3> m_leds;
emu_timer *m_mouse_timer;
uint8_t m_mouse_xphase;
uint8_t m_mouse_xdir;
uint8_t m_mouse_xref;
uint8_t m_mouse_yphase;
uint8_t m_mouse_ydir;
uint8_t m_mouse_yref;
int16_t m_mouse_x;
int16_t m_mouse_y;
uint8_t m_mux;
};
// device type definition
DECLARE_DEVICE_TYPE(ARCHIMEDES_KEYBOARD, archimedes_keyboard_device)
#endif // MAME_MACHINE_ARCHIMEDES_KEYB_H
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