// license:BSD-3-Clause // copyright-holders:smf #include "emu.h" #include "terminal.h" #include "machine/terminal.h" namespace { class serial_terminal_device : public generic_terminal_device, public device_buffered_serial_interface<16U>, public device_rs232_port_interface { public: serial_terminal_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); virtual DECLARE_WRITE_LINE_MEMBER( input_txd ) override { device_buffered_serial_interface::rx_w(state); } DECLARE_WRITE_LINE_MEMBER(update_serial); protected: virtual ioport_constructor device_input_ports() const override; virtual void device_reset() override; virtual void tra_callback() override; virtual void send_key(uint8_t code) override; private: virtual void received_byte(uint8_t byte) override; required_ioport m_rs232_txbaud; required_ioport m_rs232_rxbaud; required_ioport m_rs232_databits; required_ioport m_rs232_parity; required_ioport m_rs232_stopbits; }; serial_terminal_device::serial_terminal_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : generic_terminal_device(mconfig, SERIAL_TERMINAL, tag, owner, clock, TERMINAL_WIDTH, TERMINAL_HEIGHT) , device_buffered_serial_interface(mconfig, *this) , device_rs232_port_interface(mconfig, *this) , m_rs232_txbaud(*this, "RS232_TXBAUD") , m_rs232_rxbaud(*this, "RS232_RXBAUD") , m_rs232_databits(*this, "RS232_DATABITS") , m_rs232_parity(*this, "RS232_PARITY") , m_rs232_stopbits(*this, "RS232_STOPBITS") { } static INPUT_PORTS_START(serial_terminal) PORT_INCLUDE(generic_terminal) PORT_RS232_BAUD("RS232_TXBAUD", RS232_BAUD_9600, "TX Baud", serial_terminal_device, update_serial) PORT_RS232_BAUD("RS232_RXBAUD", RS232_BAUD_9600, "RX Baud", serial_terminal_device, update_serial) PORT_RS232_DATABITS("RS232_DATABITS", RS232_DATABITS_8, "Data Bits", serial_terminal_device, update_serial) PORT_RS232_PARITY("RS232_PARITY", RS232_PARITY_NONE, "Parity", serial_terminal_device, update_serial) PORT_RS232_STOPBITS("RS232_STOPBITS", RS232_STOPBITS_1, "Stop Bits", serial_terminal_device, update_serial) INPUT_PORTS_END ioport_constructor serial_terminal_device::device_input_ports() const { return INPUT_PORTS_NAME(serial_terminal); } WRITE_LINE_MEMBER(serial_terminal_device::update_serial) { clear_fifo(); int const startbits = 1; int const databits = convert_databits(m_rs232_databits->read()); parity_t const parity = convert_parity(m_rs232_parity->read()); stop_bits_t const stopbits = convert_stopbits(m_rs232_stopbits->read()); set_data_frame(startbits, databits, parity, stopbits); int const txbaud = convert_baud(m_rs232_txbaud->read()); set_tra_rate(txbaud); int const rxbaud = convert_baud(m_rs232_rxbaud->read()); set_rcv_rate(rxbaud); output_rxd(1); // TODO: make this configurable output_dcd(0); output_dsr(0); output_cts(0); receive_register_reset(); transmit_register_reset(); } void serial_terminal_device::device_reset() { generic_terminal_device::device_reset(); update_serial(0); } void serial_terminal_device::send_key(uint8_t code) { transmit_byte(code); } void serial_terminal_device::tra_callback() { output_rxd(transmit_register_get_data_bit()); } void serial_terminal_device::received_byte(uint8_t byte) { term_write(byte); } } // anonymous namespace DEFINE_DEVICE_TYPE_PRIVATE(SERIAL_TERMINAL, device_rs232_port_interface, serial_terminal_device, "serial_terminal", "Serial Terminal")