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// license:BSD-3-Clause
// copyright-holders:AJR
/**********************************************************************
CIT-101 85-key keyboard
**********************************************************************/
#ifndef MAME_MACHINE_CIT101_KBD_H
#define MAME_MACHINE_CIT101_KBD_H
#pragma once
#include "cpu/mcs48/mcs48.h"
#include "sound/beep.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> cit101_keyboard_device
class cit101_keyboard_device : public device_t
{
public:
// device type constructor
cit101_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 0);
static constexpr feature_type imperfect_features() { return feature::SOUND; }
// callback configuration
auto txd_callback() { return m_txd_callback.bind(); }
// serial line input
DECLARE_WRITE_LINE_MEMBER(write_rxd);
protected:
cit101_keyboard_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock);
// device-level overrides
virtual void device_resolve_objects() override;
virtual void device_start() override;
virtual ioport_constructor device_input_ports() const override;
virtual void device_add_mconfig(machine_config &config) override;
virtual const tiny_rom_entry *device_rom_region() const override;
private:
// MCU handlers
void p2_w(u8 data);
void leds_w(u8 data);
u8 keys_r();
// address maps
void prog_map(address_map &map);
void ext_map(address_map &map);
// object finders
required_device<mcs48_cpu_device> m_mcu;
required_device<beep_device> m_beeper;
required_ioport_array<11> m_keys;
required_ioport m_kbid;
output_finder<7> m_leds;
// output callback
devcb_write_line m_txd_callback;
// internal state
bool m_kbid_enabled;
};
// ======================> cit101e_keyboard_device
class cit101e_keyboard_device : public cit101_keyboard_device
{
public:
// device type constructor
cit101e_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 0);
protected:
// device-level overrides
virtual ioport_constructor device_input_ports() const override;
virtual const tiny_rom_entry *device_rom_region() const override;
};
// device type declarations
DECLARE_DEVICE_TYPE(CIT101_KEYBOARD, cit101_keyboard_device)
DECLARE_DEVICE_TYPE(CIT101E_KEYBOARD, cit101e_keyboard_device)
#endif
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