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// license:BSD-3-Clause
// copyright-holders:68bit
#include "emu.h"
#include "exorterm.h"
exorterm155_terminal_device::exorterm155_terminal_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock)
: device_t(mconfig, SERIAL_TERMINAL_EXORTERM155, tag, owner, clock)
, device_rs232_port_interface(mconfig, *this)
, m_exorterm155(*this, "exorterm155")
, m_flow_control(*this, "FLOW_CONTROL")
{
}
void exorterm155_terminal_device::device_add_mconfig(machine_config &config)
{
EXORTERM155(config, m_exorterm155);
m_exorterm155->rs232_conn_txd_handler().set(FUNC(exorterm155_terminal_device::output_rxd));
m_exorterm155->rs232_conn_rts_handler().set(FUNC(exorterm155_terminal_device::route_term_rts));
m_exorterm155->rs232_conn_dtr_handler().set(FUNC(exorterm155_terminal_device::route_term_dtr));
}
INPUT_PORTS_START(exorterm155_terminal)
PORT_START("FLOW_CONTROL")
PORT_CONFNAME(0x1, 1, "Flow Control") PORT_CHANGED_MEMBER(DEVICE_SELF, exorterm155_terminal_device, flow_control, 0)
PORT_CONFSETTING(0x00, "None")
PORT_CONFSETTING(0x01, "Terminal DTR to remote CTS")
INPUT_PORTS_END
ioport_constructor exorterm155_terminal_device::device_input_ports() const
{
return INPUT_PORTS_NAME(exorterm155_terminal);
}
WRITE_LINE_MEMBER(exorterm155_terminal_device::input_txd)
{
m_exorterm155->rs232_conn_rxd_w(state);
}
WRITE_LINE_MEMBER(exorterm155_terminal_device::route_term_rts)
{
// Loop the terminal RTS output to the terminal CTS input.
m_exorterm155->rs232_conn_cts_w(state);
}
// This terminal uses DTR for hardware flow control.
WRITE_LINE_MEMBER(exorterm155_terminal_device::route_term_dtr)
{
if (m_flow_control->read())
{
// Connect the terminal DTR output to CTS at the other end.
output_cts(state);
}
// Cache the state, in case the ioport setting changes.
m_dtr = state;
}
INPUT_CHANGED_MEMBER(exorterm155_terminal_device::flow_control)
{
if (newval)
output_cts(m_dtr);
else
output_cts(0);
}
void exorterm155_terminal_device::device_start()
{
save_item(NAME(m_dtr));
}
void exorterm155_terminal_device::device_reset()
{
// To the terminal
m_exorterm155->rs232_conn_cts_w(0);
// To the computer
output_dcd(0);
output_dsr(0);
if (!m_flow_control->read())
output_cts(0);
}
DEFINE_DEVICE_TYPE(SERIAL_TERMINAL_EXORTERM155, exorterm155_terminal_device, "exorterm155_terminal", "EXORterm 155 Terminal")
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