diff options
Diffstat (limited to 'src/devices/bus/thomson/midipak.cpp')
-rw-r--r-- | src/devices/bus/thomson/midipak.cpp | 61 |
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() +{ +} |