// license:BSD-3-Clause // copyright-holders:smf #include "terminal.h" serial_terminal_device::serial_terminal_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : generic_terminal_device(mconfig, SERIAL_TERMINAL, "Serial Terminal", tag, owner, clock, "serial_terminal", __FILE__), device_serial_interface(mconfig, *this), device_rs232_port_interface(mconfig, *this), m_rs232_txbaud(*this, "RS232_TXBAUD"), m_rs232_rxbaud(*this, "RS232_RXBAUD"), m_rs232_startbits(*this, "RS232_STARTBITS"), m_rs232_databits(*this, "RS232_DATABITS"), m_rs232_parity(*this, "RS232_PARITY"), m_rs232_stopbits(*this, "RS232_STOPBITS"), m_curr_key(0), m_key_valid(false) { } static INPUT_PORTS_START(serial_terminal) PORT_INCLUDE(generic_terminal) MCFG_RS232_BAUD("RS232_TXBAUD", RS232_BAUD_9600, "TX Baud", serial_terminal_device, update_serial) MCFG_RS232_BAUD("RS232_RXBAUD", RS232_BAUD_9600, "RX Baud", serial_terminal_device, update_serial) MCFG_RS232_STARTBITS("RS232_STARTBITS", RS232_STARTBITS_1, "Start Bits", serial_terminal_device, update_serial) MCFG_RS232_DATABITS("RS232_DATABITS", RS232_DATABITS_8, "Data Bits", serial_terminal_device, update_serial) MCFG_RS232_PARITY("RS232_PARITY", RS232_PARITY_NONE, "Parity", serial_terminal_device, update_serial) MCFG_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); } void serial_terminal_device::device_start() { generic_terminal_device::device_start(); } WRITE_LINE_MEMBER(serial_terminal_device::update_serial) { int startbits = convert_startbits(m_rs232_startbits->read()); int databits = convert_databits(m_rs232_databits->read()); parity_t parity = convert_parity(m_rs232_parity->read()); stop_bits_t stopbits = convert_stopbits(m_rs232_stopbits->read()); set_data_frame(startbits, databits, parity, stopbits); int txbaud = convert_baud(m_rs232_txbaud->read()); set_tra_rate(txbaud); int 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); } void serial_terminal_device::device_reset() { generic_terminal_device::device_reset(); update_serial(0); } void serial_terminal_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) { device_serial_interface::device_timer(timer, id, param, ptr); } void serial_terminal_device::send_key(UINT8 code) { if (is_transmit_register_empty()) { transmit_register_setup(code); return; } m_key_valid = true; m_curr_key = code; } void serial_terminal_device::tra_callback() { output_rxd(transmit_register_get_data_bit()); } void serial_terminal_device::tra_complete() { if (m_key_valid) { transmit_register_setup(m_curr_key); m_key_valid = false; } } void serial_terminal_device::rcv_complete() { receive_register_extract(); term_write(get_received_char()); } const device_type SERIAL_TERMINAL = &device_creator;