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// license:BSD-3-Clause
// copyright-holders: Devin Acker
/***************************************************************************
Casio GT913 keyboard controller (HLE)
***************************************************************************/
#ifndef MAME_MACHINE_GT913_KBD_H
#define MAME_MACHINE_GT913_KBD_H
#pragma once
#include "keyboard.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> gt913_kbd_hle_device
class gt913_kbd_hle_device : public device_t, protected device_matrix_keyboard_interface<14>
{
public:
// construction/destruction
gt913_kbd_hle_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock = XTAL());
auto irq_cb() { return m_irq_cb.bind(); }
uint16_t read();
void status_w(uint16_t data);
uint16_t status_r() { return m_status; }
protected:
// device_t overrides
virtual void device_start() override;
virtual void device_reset() override;
// device_matrix_keyboard_interface overrides
virtual void key_make(uint8_t row, uint8_t column) override { key_add(row, column, 0); }
virtual void key_break(uint8_t row, uint8_t column) override { key_add(row, column, 1); }
void key_add(uint8_t row, uint8_t column, int state);
void update_status();
private:
optional_ioport m_velocity;
devcb_write_line m_irq_cb;
uint16_t m_status;
uint8_t m_fifo[16];
uint8_t m_fifo_read, m_fifo_write;
};
// device type definition
DECLARE_DEVICE_TYPE(GT913_KBD_HLE, gt913_kbd_hle_device)
#endif // MAME_MACHINE_GT913_KBD_H
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