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// 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, const XTAL &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, const XTAL &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")
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