summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/thomson/midipak.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/bus/thomson/midipak.cpp')
-rw-r--r--src/devices/bus/thomson/midipak.cpp61
1 files changed, 61 insertions, 0 deletions
diff --git a/src/devices/bus/thomson/midipak.cpp b/src/devices/bus/thomson/midipak.cpp
new file mode 100644
index 00000000000..ad1ec4198c7
--- /dev/null
+++ b/src/devices/bus/thomson/midipak.cpp
@@ -0,0 +1,61 @@
+// license:BSD-3-Clause
+// copyright-holders:AJR
+/***************************************************************************
+
+ Logimus Midipak
+
+ This MIDI extension interface basically consists of a EF68B50P plus
+ some glue logic. An onboard jumper (JP1) can connect the 6850's IRQ
+ output to either IRQ or FIRQ; currently only the IRQ connection is
+ supported.
+
+***************************************************************************/
+
+#include "emu.h"
+#include "midipak.h"
+
+#include "bus/midi/midi.h"
+#include "machine/6850acia.h"
+#include "machine/clock.h"
+
+// device type definition
+DEFINE_DEVICE_TYPE(LOGIMUS_MIDIPAK, logimus_midipak_device, "logimus_midipak", "Logimus Midipak")
+
+//-------------------------------------------------
+// logimus_midipak_device - constructor
+//-------------------------------------------------
+
+logimus_midipak_device::logimus_midipak_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : device_t(mconfig, LOGIMUS_MIDIPAK, tag, owner, clock)
+ , thomson_extension_interface(mconfig, *this)
+{
+}
+
+void logimus_midipak_device::rom_map(address_map &map)
+{
+}
+
+void logimus_midipak_device::io_map(address_map &map)
+{
+ map(0x32, 0x33).rw("acia", FUNC(acia6850_device::read), FUNC(acia6850_device::write));
+}
+
+void logimus_midipak_device::device_add_mconfig(machine_config &config)
+{
+ acia6850_device &acia(ACIA6850(config, "acia"));
+ acia.txd_handler().set("mdout", FUNC(midi_port_device::write_txd));
+ acia.irq_handler().set(FUNC(logimus_midipak_device::irq_w));
+ acia.write_cts(0);
+ acia.write_dcd(0);
+
+ clock_device &midiclock(CLOCK(config, "midiclock", DERIVED_CLOCK(1, 1)));
+ midiclock.signal_handler().set("acia", FUNC(acia6850_device::write_rxc));
+ midiclock.signal_handler().append("acia", FUNC(acia6850_device::write_txc));
+
+ MIDI_PORT(config, "mdin", midiin_slot, "midiin").rxd_handler().set("acia", FUNC(acia6850_device::write_rxd));
+ MIDI_PORT(config, "mdout", midiout_slot, "midiout");
+}
+
+void logimus_midipak_device::device_start()
+{
+}