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// license:BSD-3-Clause
// copyright-holders:Fabio Priuli
/**********************************************************************
Nintendo Entertainment System - Miracle Piano Keyboard
**********************************************************************/
#ifndef MAME_BUS_NES_CTRL_MIRACLE_H
#define MAME_BUS_NES_CTRL_MIRACLE_H
#pragma once
#include "ctrl.h"
#include "bus/midi/midi.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> nes_miracle_device
class nes_miracle_device : public device_t,
public device_serial_interface,
public device_nes_control_port_interface
{
public:
// construction/destruction
nes_miracle_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
virtual machine_config_constructor device_mconfig_additions() const override;
required_device<midi_port_device> m_midiin, m_midiout;
protected:
static constexpr int XMIT_RING_SIZE = 64;
static constexpr int RECV_RING_SIZE = 64;
static constexpr device_timer_id TIMER_STROBE_ON = 0;
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// serial overrides
virtual void rcv_complete() override; // Rx completed receiving byte
virtual void tra_complete() override; // Tx completed sending byte
virtual void tra_callback() override; // Tx send bit
void xmit_char(uint8_t data);
virtual uint8_t read_bit0() override;
virtual void write(uint8_t data) override;
emu_timer *strobe_timer;
int m_strobe_on, m_midi_mode, m_sent_bits;
uint32_t m_strobe_clock;
uint8_t m_data_sent;
uint8_t m_xmitring[XMIT_RING_SIZE], m_recvring[RECV_RING_SIZE];
int m_xmit_read, m_xmit_write;
int m_recv_read, m_recv_write;
bool m_tx_busy, m_read_status, m_status_bit;
};
// device type definition
DECLARE_DEVICE_TYPE(NES_MIRACLE, nes_miracle_device)
#endif // MAME_BUS_NES_CTRL_MIRACLE_H
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