// 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" #include "diserial.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, const XTAL &clock); virtual uint8_t read_bit0() override; virtual void write(uint8_t data) override; required_device m_midiin, m_midiout; protected: static constexpr int XMIT_RING_SIZE = 64; static constexpr int RECV_RING_SIZE = 64; // device-level overrides virtual void device_start() override; virtual void device_reset() override; virtual void device_add_mconfig(machine_config &config) override; TIMER_CALLBACK_MEMBER(strobe_tick); private: // 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); 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