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// license:BSD-3-Clause
// copyright-holders:AJR
#ifndef MAME_MACHINE_ITT1700_KBD
#define MAME_MACHINE_ITT1700_KBD
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> itt1700_keyboard_device
class itt1700_keyboard_device : public device_t
{
public:
// device constructor
itt1700_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 0);
// host interface
DECLARE_WRITE_LINE_MEMBER(line1_w);
DECLARE_WRITE_LINE_MEMBER(line2_w);
DECLARE_WRITE_LINE_MEMBER(clock_w);
DECLARE_READ_LINE_MEMBER(sense_r);
protected:
// device-specific overrides
virtual void device_start() override;
virtual ioport_constructor device_input_ports() const override;
private:
// internal state
bool m_clock_state;
bool m_line1_state;
bool m_line2_state;
u8 m_scan_counter;
// key input matrix
required_ioport_array<16> m_keys;
};
// device type definition
DECLARE_DEVICE_TYPE(ITT1700_KEYBOARD, itt1700_keyboard_device)
#endif // MAME_MACHINE_ITT1700_KBD_H
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