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author smf- <smf-@users.noreply.github.com>2014-02-15 01:29:27 +0000
committer smf- <smf-@users.noreply.github.com>2014-02-15 01:29:27 +0000
commitb37d92de7246ff7da31a235b996e89db6f8c8d22 (patch)
tree616a8439278f4ff3331b677c9b841ed71657290a /src/emu/bus/rs232/rs232.c
parent88bc8a4673a710bdcdd2640f39b3b33bc2b76ab0 (diff)
created src\emu\bus\rs232 & src\emu\bus\midi directories and separated rs232 and midi devices, changed h89 to use an rs232 port to communicate with the serial terminal to instead of connecting it directly. [smf]
Diffstat (limited to 'src/emu/bus/rs232/rs232.c')
-rw-r--r--src/emu/bus/rs232/rs232.c99
1 files changed, 99 insertions, 0 deletions
diff --git a/src/emu/bus/rs232/rs232.c b/src/emu/bus/rs232/rs232.c
new file mode 100644
index 00000000000..0d8778070ba
--- /dev/null
+++ b/src/emu/bus/rs232/rs232.c
@@ -0,0 +1,99 @@
+#include "rs232.h"
+
+const device_type RS232_PORT = &device_creator<rs232_port_device>;
+
+rs232_port_device::rs232_port_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, RS232_PORT, "RS232 Port", tag, owner, clock, "rs232", __FILE__),
+ device_slot_interface(mconfig, *this),
+ m_rxd_handler(*this),
+ m_dcd_handler(*this),
+ m_dsr_handler(*this),
+ m_ri_handler(*this),
+ m_cts_handler(*this),
+ m_dev(NULL)
+{
+}
+
+rs232_port_device::rs232_port_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source)
+ : device_t(mconfig, type, name, tag, owner, clock, shortname, source),
+ device_slot_interface(mconfig, *this),
+ m_rxd_handler(*this),
+ m_dcd_handler(*this),
+ m_dsr_handler(*this),
+ m_ri_handler(*this),
+ m_cts_handler(*this),
+ m_dev(NULL)
+{
+}
+
+rs232_port_device::~rs232_port_device()
+{
+}
+
+void rs232_port_device::device_config_complete()
+{
+ m_dev = dynamic_cast<device_rs232_port_interface *>(get_card_device());
+}
+
+void rs232_port_device::device_start()
+{
+ m_rxd_handler.resolve_safe();
+ m_dcd_handler.resolve_safe();
+ m_dsr_handler.resolve_safe();
+ m_ri_handler.resolve_safe();
+ m_cts_handler.resolve_safe();
+
+ save_item(NAME(m_rxd));
+ save_item(NAME(m_dcd));
+ save_item(NAME(m_dsr));
+ save_item(NAME(m_ri));
+ save_item(NAME(m_cts));
+
+ m_rxd = 1;
+ m_dcd = 0;
+ m_dsr = 0;
+ m_ri = 0;
+ m_cts = 0;
+
+ m_rxd_handler(1);
+ m_dcd_handler(0);
+ m_dsr_handler(0);
+ m_ri_handler(0);
+ m_cts_handler(0);
+}
+
+WRITE_LINE_MEMBER( rs232_port_device::write_txd )
+{
+ if(m_dev)
+ m_dev->input_txd(state);
+}
+
+WRITE_LINE_MEMBER( rs232_port_device::write_dtr )
+{
+ if(m_dev)
+ m_dev->input_dtr(state);
+}
+
+WRITE_LINE_MEMBER( rs232_port_device::write_rts )
+{
+ if(m_dev)
+ return m_dev->input_rts(state);
+}
+
+#include "null_modem.h"
+#include "terminal.h"
+
+device_rs232_port_interface::device_rs232_port_interface(const machine_config &mconfig, device_t &device)
+ : device_slot_card_interface(mconfig, device)
+{
+ m_port = dynamic_cast<rs232_port_device *>(device.owner());
+}
+
+device_rs232_port_interface::~device_rs232_port_interface()
+{
+}
+
+SLOT_INTERFACE_START( default_rs232_devices )
+ SLOT_INTERFACE("serial_terminal", SERIAL_TERMINAL)
+ SLOT_INTERFACE("null_modem", NULL_MODEM)
+SLOT_INTERFACE_END