// license:BSD-3-Clause // copyright-holders:Carl,Vas Crabb #ifndef MAME_MACHINE_M20KBD_H #define MAME_MACHINE_M20KBD_H #include "bus/rs232/rs232.h" #include "machine/keyboard.h" class m20_keyboard_device : public buffered_rs232_device<16U>, protected device_matrix_keyboard_interface<9U> { public: m20_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); virtual ioport_constructor device_input_ports() const override; protected: virtual void device_reset() override; virtual void key_make(uint8_t row, uint8_t column) override; private: virtual void received_byte(uint8_t byte) override; required_ioport m_modifiers; }; DECLARE_DEVICE_TYPE(M20_KEYBOARD, m20_keyboard_device) #endif // MAME_MACHINE_M20KBD_H