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// 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<serial_terminal_device>;
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