diff options
Diffstat (limited to 'src/devices/bus/rs232/pty.cpp')
-rw-r--r-- | src/devices/bus/rs232/pty.cpp | 156 |
1 files changed, 79 insertions, 77 deletions
diff --git a/src/devices/bus/rs232/pty.cpp b/src/devices/bus/rs232/pty.cpp index 38d7c5f88e7..a324e532fb6 100644 --- a/src/devices/bus/rs232/pty.cpp +++ b/src/devices/bus/rs232/pty.cpp @@ -2,139 +2,141 @@ // copyright-holders:F. Ulivi // #include "emu.h" -#include <stdio.h> #include "pty.h" -static const int TIMER_POLL = 1; +#include <stdio.h> + + +static constexpr int TIMER_POLL = 1; pseudo_terminal_device::pseudo_terminal_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : - device_t(mconfig, PSEUDO_TERMINAL, "Pseudo terminal", tag, owner, clock, "pseudo_terminal", __FILE__), - device_serial_interface(mconfig, *this), - device_rs232_port_interface(mconfig, *this), - device_pty_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_input_count(0), - m_input_index(0), - m_timer_poll(nullptr) + device_t(mconfig, PSEUDO_TERMINAL, tag, owner, clock), + device_serial_interface(mconfig, *this), + device_rs232_port_interface(mconfig, *this), + device_pty_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_input_count(0), + m_input_index(0), + m_timer_poll(nullptr) { } WRITE_LINE_MEMBER(pseudo_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()); + 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); + set_data_frame(startbits, databits, parity, stopbits); - int txbaud = convert_baud(m_rs232_txbaud->read()); - set_tra_rate(txbaud); + int txbaud = convert_baud(m_rs232_txbaud->read()); + set_tra_rate(txbaud); - int rxbaud = convert_baud(m_rs232_rxbaud->read()); - set_rcv_rate(rxbaud); + int rxbaud = convert_baud(m_rs232_rxbaud->read()); + set_rcv_rate(rxbaud); - output_rxd(1); + output_rxd(1); - // TODO: make this configurable - output_dcd(0); - output_dsr(0); - output_cts(0); + // TODO: make this configurable + output_dcd(0); + output_dsr(0); + output_cts(0); } static INPUT_PORTS_START(pseudo_terminal) - MCFG_RS232_BAUD("RS232_TXBAUD", RS232_BAUD_9600, "TX Baud", pseudo_terminal_device, update_serial) - MCFG_RS232_BAUD("RS232_RXBAUD", RS232_BAUD_9600, "RX Baud", pseudo_terminal_device, update_serial) - MCFG_RS232_STARTBITS("RS232_STARTBITS", RS232_STARTBITS_1, "Start Bits", pseudo_terminal_device, update_serial) - MCFG_RS232_DATABITS("RS232_DATABITS", RS232_DATABITS_8, "Data Bits", pseudo_terminal_device, update_serial) - MCFG_RS232_PARITY("RS232_PARITY", RS232_PARITY_NONE, "Parity", pseudo_terminal_device, update_serial) - MCFG_RS232_STOPBITS("RS232_STOPBITS", RS232_STOPBITS_1, "Stop Bits", pseudo_terminal_device, update_serial) + MCFG_RS232_BAUD("RS232_TXBAUD", RS232_BAUD_9600, "TX Baud", pseudo_terminal_device, update_serial) + MCFG_RS232_BAUD("RS232_RXBAUD", RS232_BAUD_9600, "RX Baud", pseudo_terminal_device, update_serial) + MCFG_RS232_STARTBITS("RS232_STARTBITS", RS232_STARTBITS_1, "Start Bits", pseudo_terminal_device, update_serial) + MCFG_RS232_DATABITS("RS232_DATABITS", RS232_DATABITS_8, "Data Bits", pseudo_terminal_device, update_serial) + MCFG_RS232_PARITY("RS232_PARITY", RS232_PARITY_NONE, "Parity", pseudo_terminal_device, update_serial) + MCFG_RS232_STOPBITS("RS232_STOPBITS", RS232_STOPBITS_1, "Stop Bits", pseudo_terminal_device, update_serial) INPUT_PORTS_END ioport_constructor pseudo_terminal_device::device_input_ports() const { - return INPUT_PORTS_NAME(pseudo_terminal); + return INPUT_PORTS_NAME(pseudo_terminal); } void pseudo_terminal_device::device_start() { - m_timer_poll = timer_alloc(TIMER_POLL); + m_timer_poll = timer_alloc(TIMER_POLL); - open(); + open(); } void pseudo_terminal_device::device_stop() { - close(); + close(); } void pseudo_terminal_device::device_reset() { - update_serial(0); - queue(); + update_serial(0); + queue(); } void pseudo_terminal_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) { - switch (id) - { - case TIMER_POLL: - queue(); - break; + switch (id) + { + case TIMER_POLL: + queue(); + break; - default: - device_serial_interface::device_timer(timer, id, param, ptr); - } + default: + device_serial_interface::device_timer(timer, id, param, ptr); + } } void pseudo_terminal_device::tra_callback() { - output_rxd(transmit_register_get_data_bit()); + output_rxd(transmit_register_get_data_bit()); } void pseudo_terminal_device::tra_complete() { - queue(); + queue(); } void pseudo_terminal_device::rcv_complete() { - receive_register_extract(); - write(get_received_char()); + receive_register_extract(); + write(get_received_char()); } void pseudo_terminal_device::queue(void) { - if (is_transmit_register_empty()) + if (is_transmit_register_empty()) + { + if (m_input_index == m_input_count) + { + m_input_index = 0; + int tmp = read(m_input_buffer , sizeof(m_input_buffer)); + if (tmp > 0) { + m_input_count = tmp; + } else { + m_input_count = 0; + } + } + + if (m_input_count != 0) + { + transmit_register_setup(m_input_buffer[ m_input_index++ ]); + + m_timer_poll->adjust(attotime::never); + } + else { - if (m_input_index == m_input_count) - { - m_input_index = 0; - int tmp = read(m_input_buffer , sizeof(m_input_buffer)); - if (tmp > 0) { - m_input_count = tmp; - } else { - m_input_count = 0; - } - } - - if (m_input_count != 0) - { - transmit_register_setup(m_input_buffer[ m_input_index++ ]); - - m_timer_poll->adjust(attotime::never); - } - else - { - int txbaud = convert_baud(m_rs232_txbaud->read()); - m_timer_poll->adjust(attotime::from_hz(txbaud)); - } + int txbaud = convert_baud(m_rs232_txbaud->read()); + m_timer_poll->adjust(attotime::from_hz(txbaud)); } + } } -const device_type PSEUDO_TERMINAL = device_creator<pseudo_terminal_device>; +DEFINE_DEVICE_TYPE(PSEUDO_TERMINAL, pseudo_terminal_device, "pseudo_terminal", "Pseudo terminal") |