// 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: void device_start() override; void tra_callback() override; void tra_complete() override; void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; 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