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// license:BSD-3-Clause
// copyright-holders:Carl
#ifndef MAME_MACHINE_MIDIKBD_H
#define MAME_MACHINE_MIDIKBD_H
#pragma once
#include "diserial.h"
class midi_keyboard_device : public device_t, public device_serial_interface
{
public:
midi_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
ioport_constructor device_input_ports() const override;
auto tx_callback() { return m_out_tx_func.bind(); }
protected:
virtual void device_start() override;
virtual void tra_callback() override;
virtual void tra_complete() override;
TIMER_CALLBACK_MEMBER(scan_keyboard);
private:
void push_tx(uint8_t data) { ++m_head %= 16; m_buffer[m_head] = data; }
devcb_write_line m_out_tx_func;
emu_timer *m_keyboard_timer;
required_ioport m_keyboard;
uint32_t m_keyboard_state;
uint8_t m_buffer[16];
uint8_t m_head, m_tail;
};
DECLARE_DEVICE_TYPE(MIDI_KBD, midi_keyboard_device)
#endif // MAME_MACHINE_MIDIKBD_H
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